Nanna Rosing-Schow, Axel Müller, Henrik Friis,
... into seven pegmatite fields. The Tørdal and Evje-Iveland pegmatite fields contain the most evolved pegmatites, with ... to 23. The highly fractionated pegmatites in Evje-Iveland and Tørdal contain Li-bearing micas classified as Li-muscovite–polylithionite (Evje-Iveland) and siderophyllite–polylithionite and polylithionite (Tørdal), with up ... element concentrations are different for Tørdal and Evje-Iveland, which could suggest a different source for the Tørdal pegmatite melts than for the Evje-Iveland melts. The Evje-Iveland melts are thought to ...
Tópico(s): earthquake and tectonic studies
2018 - Mineralogical Association of Canada | The Canadian Mineralogist
Axel Müller, A. T. Kearsley, John Spratt, Reimar Seltmann,
... enriched) granitic pegmatites from the Froland and Evje–Iveland areas in southern Norway were studied with respect ... of a granitic magma compared to the Evje–Iveland pegmatites, as reflected by the elevated Ca content ... such a difference. Second, garnet of the Evje–Iveland pegmatites shows a wider range of chemical variability ... pegmatite fractionation are much stronger within the Evje–Iveland field. The Evje–Iveland melts were probably more enriched in volatiles, being ...
Tópico(s): earthquake and tectonic studies
2012 - Mineralogical Association of Canada | The Canadian Mineralogist
Axel Müller, John Spratt, Rainer Thomas, Ben J. Williamson, Reimar Seltmann,
... yttrium-fluorine (NYF) rare metal pegmatites from Evje-Iveland, southern Norway, cannot be metasomatic in a strict ... composition, the original Li-Cs-Ta-poor Evje-Iveland pegmatite-forming melt must have undergone extreme internal ... zoning, and melt inclusion data from the Evje-Iveland pegmatites document a difference in crystallization temperature within ... deeply emplaced pegmatites and albite zones of Evje-Iveland (15 to 19 km) is suggested. We argue ... the albite zone). Moreover, crystallization ages of Evje-Iveland pegmatites, ranging from 912 ± 2 Ma to 904 ± ...
Tópico(s): Crystal Structures and Properties
2018 - Mineralogical Association of Canada | The Canadian Mineralogist
Axel Müller, Peter M. Ihlen, Ben Snook, Rune Larsen, Belinda Flem, Bernard Bingen, Ben J. Williamson,
... 188 granitic pegmatites in the Froland and Evje-Iveland pegmatite fields, southern Norway, have been determined to ... Kristiansand Fault Zone (PKFZ).Quartz in the Evje-Iveland pegmatites has more variable compositions with 69±57 ... down to 442 °C.Quartz from the Evje-Iveland pegmatites is unlikely to be of current economic ... contents, heterogeneous chemistry and low volume.The Evje-Iveland pegmatites show no apparent genetic link to a ...
Tópico(s): earthquake and tectonic studies
2015 - | Economic Geology
... Nb–Ta-rich granitic pegmatites from the Evje–Iveland and Froland pegmatite fields in southern Norway was ... the coexisting REE-phases. When compared to Evje–Iveland, the Froland suite of pegmatites was derived from ... trace elements in feldspar implies that the Evje–Iveland pegmatites formed from progressively more differentiated melts that ...
Tópico(s): earthquake and tectonic studies
2002 - Mineralogical Association of Canada | The Canadian Mineralogist
Paola Bonazzi, Matteo Zoppi, Luigi Dei,
... recrystallization process of a metamict sample from Evje-Iveland was monitored by recording X-ray powder diffraction ...
Tópico(s): Crystal Structures and Properties
2002 - Elsevier BV | European Journal of Mineralogy
J. Theo Kloprogge, Ray L. Frost,
... and topaz single crystals from pegmatites in the Iveland–Evje area are described in detail. The beryl ...
Tópico(s): Lichen and fungal ecology
2000 - Elsevier BV | Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy
Justin Iveland, Marco Piccardo, Lucio Martinelli, Jacques Peretti, Joo Won Choi, Nathan G. Young, Shuji Nakamura, James S. Speck, Claude Weisbuch,
... generating hot carriers. In a previous study [J. Iveland et al., Phys. Rev. Lett. 110, 177406 (2013)], ...
Tópico(s): Ga2O3 and related materials
2014 - American Institute of Physics | Applied Physics Letters
Toufik Sadi, Pyry Kivisaari, Jani Oksanen, Jukka Tulkki,
Recent experiments presented in by Iveland et al. [Phys. Rev. Lett. 110, 177406 (2013)] demonstrated that hot electron emission from cesiated p-contacts of III-nitride quantum- ... only consistent explanation for the experimental findings of Iveland et al., [Phys. Rev. Lett. 110, 177406 (2013)].
Tópico(s): Semiconductor Quantum Structures and Devices
2014 - American Institute of Physics | Applied Physics Letters
Austin M. Gion, Philip M. Piccoli, Yingwei Fei, Philip A. Candela, R. D. Ash,
The Evje-Iveland pegmatite field in Norway contains pegmatites that are known for their rare scandium mineralization. The petrogenesis of these ... however, they are less siliceous than the Evje-Iveland pegmatites. These glasses are also scandium- and REE- ... at low pressures, but dissimilar to the Evje-Iveland pegmatites. The results of these experiments are thus inconsistent with the hypothesis that the Evje-Iveland pegmatites or, by extension, other rare-element pegmatites, ... is proposed that the formation of the Evje-Iveland pegmatites is the result of partial melting of ...
Tópico(s): Geochemistry and Geologic Mapping
2021 - Elsevier BV | Lithos
Kōzō Nagashima, Hisanobu Wakita,
... CO3)4・3H20(?)という式を提案した。組成を調べるため, トリクロル酢酸イットリウムの水溶液から沈殿させ, 母液とともに熟成させる方法により含水炭酸イットリウムを合成した。沈殿させた炭酸塩のX線粉末回折値は水晶山産およびノルウェー Iveland 産 (ASTM, 16-698) の回折値とよく一致した。水晶山産の試料と, 合成物の DTA, ...
Tópico(s): Building materials and conservation
1968 - Chemical Society of Japan | Nippon kagaku zassi
Design of bandpass filters for microwave integrated circuits (MICS) utilizing dielectric resonators is discussed. Synthesis methods for both Tschebycheff and Butterworth responses are derived. Experimental results with S- and X-band filters are presented, and the agreement between theory and experiments is shown to be fairly good. Limitations on this technique due to poor temperature stability are also discussed.
Tópico(s): Advanced Antenna and Metasurface Technologies
1971 - IEEE Microwave Theory and Techniques Society | IEEE Transactions on Microwave Theory and Techniques
The influence of 0.05% sodium polyanethol sulfonate on the growth of 24 strains of Neisseria meningitidis in broth medium was examined; several of the strains were markedly inhibited. A paper disk method was evolved for screening the sensitivity of various bacteria to sodium polyanethol sulfonate on solid medium; the highest sensitivity was observed in N. meningitidis and Neisseria gonorrhoeae. Zones of growth inhibition were also observed in a proportion of strains in certain species of gram-positive ...
Tópico(s): Parasitic Infections and Diagnostics
1975 - American Society for Microbiology | Journal of Clinical Microbiology
Bruce E. Taylor, Hans Friedrichsen,
... The pegmatites and pegmatite districts include the Evje—Iveland area, Norway; Harding pegmatite, New Mexico, U.S. ...
Tópico(s): Geochemistry and Elemental Analysis
1983 - Elsevier BV | Chemical Geology
Bjørn Skallerud, Terje Iveland, G. Härkegård,
This article is dedicated to the high cycle fatigue behaviour of cast hypo-eutectic Al–Si alloys and in particular the AlSi7Cu05Mg03 alloy. In a vast experimental campaign undertaken to investigate the fatigue damage mechanisms operating in this alloy, subject to complex loading conditions, it was shown that two different coexisting fatigue damage mechanisms occur in this materials, depending on the presence of different microstructural heterogeneities (i.e. micro-shrinkage pores, Si particles, Fe- ...
Tópico(s): Fatigue and fracture mechanics
1994 - Elsevier BV | International Journal of Fatigue
James W. Raring, Mathew C. Schmidt, C. Poblenz, Yu‐Chia Chang, M.J. Mondry, Ben Li, Justin Iveland, Brianna Walters, Michael R. Krames, Richard R. Craig, Paul Rudy, James S. Speck, Steven P. DenBaars, Shuji Nakamura,
Using non-c-plane bulk GaN substrates, we demonstrate continuous-wave single-mode blue-emitting laser diodes operating with over 23% wall plug efficiency and over 750 mW output power, which represent the highest values reported to date. Furthermore, we demonstrate continuous-wave 520 nm green-emitting laser diodes with over 60 mW output power and 1.9% wall plug efficiency. The rapid performance evolution of laser diodes fabricated on non-c-plane orientations is validation of the benefits resulting ...
Tópico(s): Semiconductor Lasers and Optical Devices
2010 - Institute of Physics | Applied Physics Express
Andi M. Limarga, Justin Iveland, Molly M. Gentleman, Don M. Lipkin, David R. Clarke,
The evolution of the Raman lines of metastable tetragonal yttria-stabilized zirconia with annealing for different times at different high temperatures has been monitored and the data analyzed using a Larson–Miller parameter. This normalization allowed the shift and sharpening of the Raman peaks of tetragonal zirconias having different stabilizer concentration and produced by different methods with different microstructures to be described by a common curve. The observed Raman shifts are consistent ...
Tópico(s): Advancements in Solid Oxide Fuel Cells
2010 - Elsevier BV | Acta Materialia
Bjørn Skallerud, Terje Iveland, G. Härkegård,
The fatigue lifetimes of cylindrical aluminum specimens containing shrinkage cavities were measured. The results were compared with those of specimens without macroscopic cavities (DC cast). Two different heat treatments were considered: T4 (naturally aged) and T6 (near peak aged). The pore shape and distribution in the specimens were complex. Pores with a maximum diameter larger than 0.2 mm resulted in a significant reduction of the lifetime. Numerical calculations were carried out to predict the ...
Tópico(s): High Temperature Alloys and Creep
1993 - Elsevier BV | Engineering Fracture Mechanics
P. Černý, Ron Chapman, M. Masau,
... from Håverstad and an unspecified locality in central Iveland, southern Norway, displays a novel two-stage exsolution ...
Tópico(s): Geochemistry and Elemental Analysis
2000 - Mineralogical Association of Canada | The Canadian Mineralogist
Marco Piccardo, Lucio Martinelli, Justin Iveland, Nathan G. Young, Steven P. DenBaars, Shuji Nakamura, James S. Speck, Claude Weisbuch, Jacques Peretti,
The position of the first satellite valley in wurtzite GaN is directly determined by near-band-gap photoemission spectroscopy of $p$-doped GaN activated to negative electron affinity. The photoemission spectra exhibit two structures, with fixed energy position, which originate from electrons accumulated in the conduction band valleys of the bulk material. We assigned the two observed features respectively to $\ensuremath{\Gamma}$ and L valleys and obtain an intervalley energy separation of $0.90\ifmmode\ ...
Tópico(s): Ga2O3 and related materials
2014 - American Physical Society | Physical Review B
Justin Iveland, Lucio Martinelli, Jacques Peretti, James S. Speck, Claude Weisbuch,
We report on the unambiguous detection of Auger electrons by electron emission spectroscopy from a cesiated InGaN/GaN light-emitting diode under electrical injection. Electron emission spectra were measured as a function of the current injected in the device. The appearance of high energy electron peaks simultaneously with an observed drop in electroluminescence efficiency shows that hot carriers are being generated in the active region (InGaN quantum wells) by an Auger process. A linear correlation ...
Tópico(s): ZnO doping and properties
2013 - American Physical Society | Physical Review Letters
Roger Trones, Asbjorn Iveland, Tyge Greibrokk,
Abstract The need for a high resolution chromatographic technique for analyzing compounds that are heavy, relatively polar, have low water solubility, and are not adequately separated by regular HPLC methods, has led to the development of a high temperature liquid chromatography system. The increased diffusion coefficients and reduced viscosity at higher temperatures resulted in high separation velocities and allowed long columns to be used. The HTLC system contained 70 cm columns and nonaqueous ...
Tópico(s): Chromatography in Natural Products
1995 - Wiley | Journal of Microcolumn Separations
Claude Weisbuch, Marco Piccardo, Lucio Martinelli, Justin Iveland, Jacques Peretti, James S. Speck,
We discuss the challenges of light‐emitting diodes in view of their application to solid‐state lighting. The requirement is to at least displace the quite efficient fluorescent, sodium, and high intensity discharge lamps used today in the main energy consuming lighting sectors, industrial, commercial and outdoors, with more efficient and better light quality lamps. We show that both from the point of view of cost of ownership and carbon emissions reduction, the relevant metric is efficiency, more ...
Tópico(s): ZnO doping and properties
2015 - Wiley | physica status solidi (a)
Charley J. Duran, Anne‐Magali Seydoux‐Guillaume, Bernard Bingen, Sophie Gouy, Philippe de Parseval, Jannick Ingrin, Damien Guillaume,
Tópico(s): High-pressure geophysics and materials
2016 - Springer Science+Business Media | Mineralogy and Petrology
Danielle B. Harlow, Hilary A. Dwyer, Alexandria K. Hansen, Ashley Iveland, Diana Franklin,
This article integrates an ecological approach and design-based research in computer science education research by following the simultaneous development of a computer programming environment and curriculum for elementary school age children over 2-1/2 years. We studied the alignment of the affordances provided by the programming environment and curriculum with the effectivities of students in 4th through 6th grade (9-12 years old). We used the computer science concept of initializing as a tracer ...
Tópico(s): Innovative Teaching and Learning Methods
2018 - Taylor & Francis | Cognition and Instruction
Alexis Morvan, Benjamin Villalonga, Xiao Mi, Salvatore Mandrà, Andreas Bengtsson, Paul V. Klimov, Z. Chen, Sabrina Hong, Catherine Erickson, Ilya Drozdov, J. Chau, G. Laun, R. Movassagh, Abraham Asfaw, Luís T. A. N. Brandão, René Peralta, Dmitry A. Abanin, Rajeev Acharya, R. M. Allen, T. I. Andersen, K. R. Anderson, M. Ansmann, Frank Arute, Kunal Arya, Juan Atalaya, Joseph C. Bardin, Alexander Bilmes, Gina Bortoli, Alexandre Bourassa, Jenna Bovaird, L. Brill, Michael Broughton, B. B. Buckley, David A. Buell, T. Burger, Brian Burkett, Nicholas Bushnell, J. Campero, Hung-Shen Chang, B. Chiaro, D. Chik, C. W. Chou, J. Cogan, Roberto Collins, P. Conner, William Courtney, A. L. Crook, Ben Curtin, Dripto M. Debroy, Alexander Del Toro Barba, Sean Demura, Agustín Di Paolo, A. Dunsworth, Lara Faoro, Edward Farhi, Reza Fatemi, V. S. Ferreira, Leslie Flores Burgos, Ebrahim Forati, A. G. Fowler, Brooks Foxen, G. Garcia, Élie Genois, W. Giang, Craig Gidney, D. Gilboa, Marissa Giustina, Raja Gosula, Alejandro Grajales Dau, Jonathan A. Gross, Steve Habegger, Michael C. Hamilton, M. Hansen, Matthew P. Harrigan, Sean D. Harrington, Paula Heu, M. R. Hoffmann, Trent Huang, Ashley Huff, William J. Huggins, L. B. Ioffe, S. V. Isakov, Justin Iveland, E. Jeffrey, Jiang Zhang, C. Jones, Pavol Juhás, Dvir Kafri, Tanuj Khattar, Mostafa Khezri, Mária Kieferová, S. Kim, Alexei Kitaev, A. R. Klots, A. N. Korotkov, Fedor Kostritsa, John Mark Kreikebaum, David Landhuis, Pavel Laptev, K-M Lau, Lily Laws, J. Lee, K. W. Lee, Y. D. Lensky, Brian Lester, Alexander T. Lill, W. Liu, William P. Livingston, Aditya Locharla, F. D. Malone, Orion Martin, Steven W. Martin, Jarrod R. McClean, Matt McEwen, Kevin C. Miao, A. Mieszala, Shirin Montazeri, Wojciech Mruczkiewicz, Ofer Naaman, M. Neeley, Charles Neill, A. Nersisyan, Michael Newman, Jiun How Ng, A. Nguyen, Murray Nguyen, M. Yuezhen Niu, Thomas E. O’Brien, S. Omonije, Alex Opremcak, A. Petukhov, R. Potter, Leonid P. Pryadko, Chris Quintana, David M. Rhodes, C. Rocque, Eliott Rosenberg, Nicholas C. Rubin, Negar Saei, D. Sank, Kannan Sankaragomathi, Kevin J. Satzinger, Henry F. Schurkus, C. Schuster, M. J. Shearn, Aaron Shorter, Noah Shutty, Vladimir Shvarts, V. Sivak, Jindra Skruzny, W. C. Smith, R. D. Somma, G. Sterling, Doug Strain, Marco Szalay, Douglas Thor, A. Torres, Guifré Vidal, Catherine Vollgraff Heidweiller, T. White, Bryan W. K. Woo, C. Xing, Z. Jamie Yao, P. Yeh, Juhwan Yoo, G. Young, Adam Zalcman, Y. Zhang, Ningfeng Zhu, Nicholas Zobrist, Eleanor Rieffel, R. Biswas, Ryan Babbush, Dave Bacon, J. Hilton, Erik Lucero, Hartmut Neven, A. Megrant, J. Kelly, P. Roushan, I. L. Aleǐner, Vadim Smelyanskiy, Kostyantyn Kechedzhi, Yu Chen, Sergio Boixo,
Undesired coupling to the surrounding environment destroys long-range correlations in quantum processors and hinders coherent evolution in the nominally available computational space. This noise is an outstanding challenge when leveraging the computation power of near-term quantum processors
Tópico(s): Quantum and electron transport phenomena
2024 - Nature Portfolio | Nature
Rajeev Acharya, Dmitry A. Abanin, Laleh Aghababaie-Beni, I. L. Aleǐner, Trond I. Andersen, M. Ansmann, Frank Arute, Kunal Arya, Abraham Asfaw, Nikita Astrakhantsev, Juan Atalaya, Ryan Babbush, Dave Bacon, Brian Ballard, Joseph C. Bardin, Johannes Bausch, Andreas Bengtsson, Alexander Bilmes, Sam Blackwell, Sergio Boixo, Gina Bortoli, Alexandre Bourassa, Jenna Bovaird, Leon Brill, Michael Broughton, David A. Browne, Brett Buchea, Bob B. Buckley, David A. Buell, T. Burger, Brian Burkett, Nicholas Bushnell, Anthony Cabrera, Juan Campero, Hung-Shen Chang, Yu Chen, Zijun Chen, B. Chiaro, Desmond Chik, Charina Chou, Jahan Claes, Agnetta Y. Cleland, Josh Cogan, Roberto Collins, Paul Conner, William Courtney, Alexander L. Crook, Ben Curtin, S.N. Das, Alex Davies, Laura de Lorenzo, Dripto M. Debroy, Sean Demura, Michel Devoret, Agustín Di Paolo, Paul Donohoe, Ilya Drozdov, A. Dunsworth, Clint Earle, Thomas Edlich, Alec Eickbusch, Aviv Moshe Elbag, Mahmoud Elzouka, Catherine Erickson, Lara Faoro, Edward Farhi, Vinicius S. Ferreira, Leslie Flores Burgos, Ebrahim Forati, Austin G. Fowler, Brooks Foxen, Suhas Ganjam, Gonzalo Cerruela García, Robert Gasca, Élie Genois, W. Giang, Craig Gidney, Dar Gilboa, Raja Gosula, Alejandro Grajales Dau, Dietrich Graumann, A. Greene, Jonathan A. Gross, Steve Habegger, John A. Hall, Michael C. Hamilton, Monica Hansen, Matthew P. Harrigan, Sean D. Harrington, Francisco J. H. Heras, Stephen Heslin, Paula Heu, Oscar Higgott, Gordon Hill, J. Hilton, George Holland, Sabrina Hong, Hsin-Yuan Huang, Ashley Huff, William J. Huggins, L. B. Ioffe, Sergei V. Isakov, Justin Iveland, Evan Jeffrey, Jiang Zhang, Cody Jones, Stephen P. Jordan, Chaitali Joshi, Pavol Juhás, Dvir Kafri, Hui Kang, Amir H. Karamlou, Kostyantyn Kechedzhi, J. Kelly, Trupti Khaire, Tanuj Khattar, Mostafa Khezri, Seon Ho Kim, Paul V. Klimov, Andrey R. Klots, Bryce Kobrin, Pushmeet Kohli, Alexander N. Korotkov, Fedor Kostritsa, Robin Kothari, Borislav M. Kozlovskii, John Mark Kreikebaum, Vladislav D. Kurilovich, Nathan Lacroix, David Landhuis, Tiano Lange-Dei, Brandon W. Langley, Pavel Laptev, Kim-Ming Lau, Loïck Le Guevel, Justin Ledford, Joonho Lee, K. W. Lee, Yuri D. Lensky, S. de León, Brian Lester, Wing Yan Li, Yin Li, Alexander T. Lill, Wayne Liu, William P. Livingston, Aditya Locharla, Erik Lucero, Daniel Lundahl, Aaron Lunt, Sid Madhuk, Fionn D. Malone, Ashley Maloney, Salvatore Mandrà, James Manyika, Leigh S. Martin, Orion Martin, Steven W. Martin, Cameron Maxfield, Jarrod R. McClean, Matt McEwen, Seneca Meeks, A. Megrant, Xiao Mi, Kevin C. Miao, Amanda Mieszala, Reza Molavi, Sebastian Molina, Shirin Montazeri, Alexis Morvan, Ramis Movassagh, Wojciech Mruczkiewicz, Ofer Naaman, M. Neeley, Charles Neill, Ani Nersisyan, Hartmut Neven, Michael Newman, Jiun How Ng, Anthony Nguyen, Murray Nguyen, Chia-Hung Ni, Murphy Yuezhen Niu, Thomas E. O’Brien, William D. Oliver, Alex Opremcak, Kristoffer Ottosson, Andre Petukhov, A. Pizzuto, John Platt, R. Potter, Orion Pritchard, Leonid P. Pryadko, Chris Quintana, Ganesh Ramachandran, Matthew J. Reagor, J. Redding, David M. Rhodes, Gabrielle Roberts, Eliott Rosenberg, Emma Rosenfeld, P. Roushan, Nicholas C. Rubin, Negar Saei, D. Sank, Kannan Sankaragomathi, Kevin J. Satzinger, Henry F. Schurkus, Christopher Schuster, Andrew Senior, Michael J. Shearn, Aaron Shorter, Noah Shutty, Vladimir Shvarts, Shraddha Singh, Volodymyr Sivak, Jindra Skruzny, Spencer Small, Vadim Smelyanskiy, W. Clarke Smith, Rolando D. Somma, Sofia Springer, George Sterling, Doug Strain, Jordan Suchard, Aaron Szasz, Alex Sztein, Douglas Thor, Alfredo G. Torres, Mustafa Mert Torunbalcı, Abeer Vaishnav, Justin Vargas, Sergey Vdovichev, Guifré Vidal, Benjamin Villalonga, Catherine Vollgraff Heidweiller, Steven Waltman, Shannon X. Wang, Brayden Ware, Kate Weber, Travis Weidel, T. White, Kristi Wong, Bryan W. K. Woo, Cheng Xing, Z. Jamie Yao, P. Yeh, Bicheng Ying, Juhwan Yoo, Noureldin Yosri, Grayson Young, Adam Zalcman, Yaxing Zhang, Ningfeng Zhu, Nicholas Zobrist,
Tópico(s): Quantum Information and Cryptography
2024 - Nature Portfolio | Nature
Eliott Rosenberg, T. I. Andersen, Rhine Samajdar, A. Petukhov, Jesse C. Hoke, Dmitry A. Abanin, Andreas Bengtsson, Ilya Drozdov, Catherine Erickson, P. V. Klimov, Xiao Mi, Alexis Morvan, M. Neeley, C. Neill, Rajeev Acharya, R. M. Allen, K. R. Anderson, M. Ansmann, Frank Arute, Kunal Arya, Abraham Asfaw, Juan Atalaya, Joseph C. Bardin, Alexander Bilmes, Gina Bortoli, Alexandre Bourassa, Jenna Bovaird, L. Brill, Michael Broughton, Bob B. Buckley, David A. Buell, T. Burger, Brian Burkett, Nicholas Bushnell, J. Campero, Hung-Shen Chang, Z. Chen, B. Chiaro, D. Chik, J. Cogan, Roberto Collins, P. Conner, William Courtney, A. L. Crook, Ben Curtin, D. M. Debroy, Alexander Del Toro Barba, Sean Demura, Agustín Di Paolo, A. Dunsworth, Clifford J. Earle, Lara Faoro, Edward Farhi, Reza Fatemi, V. S. Ferreira, Leslie Flores Burgos, Ebrahim Forati, Austin G. Fowler, Brooks Foxen, G. Garcia, Élie Genois, W. Giang, Craig Gidney, D. Gilboa, Marissa Giustina, Raja Gosula, Alejandro Grajales Dau, Jonathan A. Gross, Steve Habegger, Michael C. Hamilton, M. Hansen, Matthew P. Harrigan, Sean D. Harrington, P. Heu, Gordon Hill, M. R. Hoffmann, Sabrina Hong, Trent Huang, Ashley Huff, William J. Huggins, L. B. Ioffe, S. V. Isakov, Justin Iveland, E. Jeffrey, Jiang Zhang, C. Jones, Pavol Juhás, Dvir Kafri, Tanuj Khattar, Mostafa Khezri, Mária Kieferová, Seon Kim, Alexei Kitaev, A. R. Klots, A. N. Korotkov, Fedor Kostritsa, John Mark Kreikebaum, David Landhuis, Pavel Laptev, K.-M. Lau, Lily Laws, J. Lee, K. W. Lee, Y. D. Lensky, Brian Lester, Alexander T. Lill, W. Liu, Aditya Locharla, Salvatore Mandrà, Orion Martin, Steven W. Martin, Jarrod R. McClean, Matt McEwen, Sanford L. Meeks, Kevin C. Miao, A. Mieszala, Shirin Montazeri, Ramis Movassagh, Wojciech Mruczkiewicz, Ani Nersisyan, Michael Newman, Jiun How Ng, A. Nguyen, Murray Nguyen, M. Y. Niu, Thomas E. O’Brien, S. Omonije, Alex Opremcak, R. Potter, Leonid P. Pryadko, Chris Quintana, David M. Rhodes, C. Rocque, Nicholas C. Rubin, Negar Saei, D. Sank, K. Sankaragomathi, Kevin J. Satzinger, Henry F. Schurkus, C. Schuster, M. J. Shearn, Aaron Shorter, Noah Shutty, Vladimir Shvarts, V. Sivak, Jindra Skruzny, W. Clarke Smith, R. D. Somma, G. Sterling, Doug Strain, Marco Szalay, Douglas Thor, A. Torres, Guifré Vidal, B. Villalonga, Catherine Vollgraff Heidweiller, T. White, Bryan W. K. Woo, C. Xing, Z. Jamie Yao, P. Yeh, Juhwan Yoo, G. Young, Adam Zalcman, Y. Zhang, Ningfeng Zhu, Nicholas Zobrist, Hartmut Neven, Ryan Babbush, Dave Bacon, Sergio Boixo, J. Hilton, Erik Lucero, A. Megrant, J. Kelly, Yu Chen, Vadim Smelyanskiy, Vedika Khemani, Sarang Gopalakrishnan, Tomaž Prosen, P. Roushan,
Understanding universal aspects of quantum dynamics is an unresolved problem in statistical mechanics. In particular, the spin dynamics of the one-dimensional Heisenberg model were conjectured as to belong to the Kardar-Parisi-Zhang (KPZ) universality class based on the scaling of the infinite-temperature spin-spin correlation function. In a chain of 46 superconducting qubits, we studied the probability distribution of the magnetization transferred across the chain's center, [Formula: see text]. The ...
Tópico(s): Algebraic structures and combinatorial models
2024 - American Association for the Advancement of Science | Science
Xiao Mi, Alexios A. Michailidis, S. Shabani, Kevin C. Miao, P. V. Klimov, Jerome Lloyd, Eliott Rosenberg, Rajeev Acharya, I. L. Aleǐner, T. I. Andersen, M. Ansmann, Frank Arute, Kunal Arya, Abraham Asfaw, Juan Atalaya, Joseph C. Bardin, Andreas Bengtsson, Gina Bortoli, Alexandre Bourassa, Jenna Bovaird, L. Brill, Michael Broughton, Bob B. Buckley, David A. Buell, T. Burger, Brian Burkett, Nicholas Bushnell, Z. Chen, B. Chiaro, Desmond Chik, C. W. Chou, J. Cogan, Roberto Collins, P. Conner, William Courtney, A. L. Crook, Ben Curtin, Alejandro Grajales Dau, D. M. Debroy, Alexander Del Toro Barba, Sean Demura, Agustín Di Paolo, I. K. Drozdov, A. Dunsworth, Catherine Erickson, Lara Faoro, Edward Farhi, Reza Fatemi, V. S. Ferreira, Leslie Flores Burgos, Ebrahim Forati, Austin G. Fowler, Brooks Foxen, Élie Genois, W. Giang, Craig Gidney, D. Gilboa, Marissa Giustina, Raja Gosula, Jonathan A. Gross, Steve Habegger, Michael C. Hamilton, M. Hansen, Matthew P. Harrigan, Sean D. Harrington, Paula Heu, M. R. Hoffmann, Sabrina Hong, Trent Huang, Ashley Huff, W. J. Huggins, L. B. Ioffe, S. V. Isakov, Justin Iveland, E. Jeffrey, Jiang Zhang, C. Jones, Pavol Juhás, Dvir Kafri, Kostyantyn Kechedzhi, Tanuj Khattar, Mostafa Khezri, Mária Kieferová, Seon Kim, Alexei Kitaev, A. R. Klots, A. N. Korotkov, Fedor Kostritsa, John Mark Kreikebaum, David Landhuis, Pavel Laptev, K.-M. Lau, Lily Laws, J. Lee, K. W. Lee, Y. D. Lensky, Brian Lester, Alexander T. Lill, W. Liu, Aditya Locharla, F. D. Malone, Orion Martin, Jarrod R. McClean, Matt McEwen, A. Mieszala, Shirin Montazeri, Alexis Morvan, Ramis Movassagh, Wojciech Mruczkiewicz, M. Neeley, C. Neill, A. Nersisyan, Michael Newman, Jiun How Ng, A. Nguyen, Murray Nguyen, M. Y. Niu, Thomas E. O’Brien, Alex Opremcak, A. Petukhov, R. Potter, L. P. Pryadko, Chris Quintana, C. Rocque, Nicholas C. Rubin, Negar Saei, D. Sank, K. Sankaragomathi, Kevin J. Satzinger, Henry F. Schurkus, C. Schuster, M. J. Shearn, Aaron Shorter, Noah Shutty, Vladimir Shvarts, Jindra Skruzny, W. C. Smith, Rolando D. Somma, G. Sterling, Doug Strain, Marco Szalay, A. Torres, Guifré Vidal, B. Villalonga, C. V. Heidweiller, T. White, Bryan W. K. Woo, C. Xing, Z. Jamie Yao, P. Yeh, Juhwan Yoo, G. Young, Adam Zalcman, Y. Zhang, Ningfeng Zhu, Nicholas Zobrist, Hartmut Neven, Ryan Babbush, Dave Bacon, Sergio Boixo, J. Hilton, Erik Lucero, A. Megrant, J. Kelly, Yu Chen, P. Roushan, Vadim Smelyanskiy, Dmitry A. Abanin,
Engineered dissipative reservoirs have the potential to steer many-body quantum systems toward correlated steady states useful for quantum simulation of high-temperature superconductivity or quantum magnetism. Using up to 49 superconducting qubits, we prepared low-energy states of the transverse-field Ising model through coupling to dissipative auxiliary qubits. In one dimension, we observed long-range quantum correlations and a ground-state fidelity of 0.86 for 18 qubits at the critical point. ...
Tópico(s): Quantum and electron transport phenomena
2024 - American Association for the Advancement of Science | Science
Thomas E. O’Brien, G. Anselmetti, Fotios Gkritsis, Vincent E. Elfving, S. Polla, William J. Huggins, Oumarou Oumarou, Kostyantyn Kechedzhi, Dmitry A. Abanin, Rajeev Acharya, I. L. Aleǐner, R. M. Allen, T. I. Andersen, K. R. Anderson, M. Ansmann, Frank Arute, Kunal Arya, Abraham Asfaw, Juan Atalaya, Joseph C. Bardin, Andreas Bengtsson, Gina Bortoli, Alexandre Bourassa, Jenna Bovaird, L. Brill, Michael Broughton, Bob B. Buckley, David A. Buell, T. Burger, Brian Burkett, Nicholas Bushnell, J. Campero, Z. Chen, B. Chiaro, D. Chik, J. Cogan, Roberto Collins, P. Conner, William Courtney, A. L. Crook, Ben Curtin, D. M. Debroy, Sean Demura, Ilya Drozdov, A. Dunsworth, Catherine Erickson, Lara Faoro, Edward Farhi, Reza Fatemi, V. S. Ferreira, Leslie Flores Burgos, Ebrahim Forati, A. G. Fowler, Brooks Foxen, W. Giang, Craig Gidney, D. Gilboa, Marissa Giustina, Raja Gosula, Alejandro Grajales Dau, Jonathan A. Gross, Steve Habegger, M. C. Hamilton, M. Hansen, Matthew P. Harrigan, Sean D. Harrington, P. Heu, M. R. Hoffmann, Sabrina Hong, Trent Huang, Ashley Huff, L. B. Ioffe, S. V. Isakov, Justin Iveland, E. Jeffrey, Jiang Zhang, C. Jones, Pavol Juhás, Dvir Kafri, Tanuj Khattar, Mostafa Khezri, Mária Kieferová, S. Kim, P. V. Klimov, A. R. Klots, Alexander N. Korotkov, Fedor Kostritsa, John Mark Kreikebaum, David Landhuis, Pavel Laptev, K.-M. Lau, Lily Laws, J. Lee, K. Lee, Brian Lester, Alexander T. Lill, W. Liu, William P. Livingston, Aditya Locharla, F. D. Malone, Salvatore Mandrà, Orion Martin, Steven W. Martin, Jarrod R. McClean, Trevor McCourt, Matt McEwen, Xiao Mi, A. Mieszala, Kevin C. Miao, Masoud Mohseni, Shirin Montazeri, Alexis Morvan, R. Movassagh, Wojciech Mruczkiewicz, Ofer Naaman, M. Neeley, Charles Neill, A. Nersisyan, Michael Newman, Jiun How Ng, A. Nguyen, Murray Nguyen, M. Y. Niu, S. Omonije, Alex Opremcak, A. Petukhov, R. Potter, Leonid P. Pryadko, Chris Quintana, C. Rocque, P. Roushan, Negar Saei, D. Sank, Kannan Sankaragomathi, Kevin J. Satzinger, Henry F. Schurkus, C. Schuster, M. J. Shearn, Aaron Shorter, Noah Shutty, Vladimir Shvarts, Jindra Skruzny, W. C. Smith, R. D. Somma, G. Sterling, Doug Strain, Marco Szalay, Douglas Thor, A. Torres, Guifré Vidal, Benjamin Villalonga, Catherine Vollgraff Heidweiller, T. White, Bryan W. K. Woo, C. Xing, Z. J. Yao, P. Yeh, Juhwan Yoo, G. Young, Adam Zalcman, Y. Zhang, Ningfeng Zhu, Nicholas Zobrist, Dave Bacon, Sergio Boixo, Yu Chen, J. Hilton, J. Kelly, Erik Lucero, A. Megrant, Hartmut Neven, Vadim Smelyanskiy, Christian Gogolin, Ryan Babbush, Nicholas C. Rubin,
Abstract An important measure of the development of quantum computing platforms has been the simulation of increasingly complex physical systems. Before fault-tolerant quantum computing, robust error-mitigation strategies were necessary to continue this growth. Here, we validate recently introduced error-mitigation strategies that exploit the expectation that the ideal output of a quantum algorithm would be a pure state. We consider the task of simulating electron systems in the seniority-zero subspace ...
Tópico(s): Quantum Information and Cryptography
2023 - Nature Portfolio | Nature Physics