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Detalles Bibliográficos
Autores principales: Andersen, Trond I., Astrakhantsev, Nikita, Karamlou, Amir H., Berndtsson, Julia, Motruk, Johannes, Szasz, Aaron, Gross, Jonathan A., Schuckert, Alexander, Westerhout, Tom, Zhang, Yaxing, Forati, Ebrahim, Rossi, Dario, Kobrin, Bryce, Di Paolo, Agustin, Klots, Andrey R., Drozdov, Ilya, Kurilovich, Vladislav D., Petukhov, Andre, Ioffe, Lev B., Elben, Andreas, Rath, Aniket, Vitale, Vittorio, Vermersch, Benoit, Acharya, Rajeev, Beni, Laleh Aghababaie, Anderson, Kyle, Ansmann, Markus, Arute, Frank, Arya, Kunal, Asfaw, Abraham, Atalaya, Juan, Ballard, Brian, Bardin, Joseph C., Bengtsson, Andreas, Bilmes, Alexander, Bortoli, Gina, Bourassa, Alexandre, Bovaird, Jenna, Brill, Leon, Broughton, Michael, Browne, David A., Buchea, Brett, Buckley, Bob B., Buell, David A., Burger, Tim, Burkett, Brian, Bushnell, Nicholas, Cabrera, Anthony, Campero, Juan, Chang, Hung-Shen, Chen, Zijun, Chiaro, Ben, Claes, Jahan, Cleland, Agnetta Y., Cogan, Josh, Collins, Roberto, Conner, Paul, Courtney, William, Crook, Alexander L., Das, Sayan, Debroy, Dripto M., De Lorenzo, Laura, Barba, Alexander Del Toro, Demura, Sean, Donohoe, Paul, Dunsworth, Andrew, Earle, Clint, Eickbusch, Alec, Elbag, Aviv Moshe, Elzouka, Mahmoud, Erickson, Catherine, Faoro, Lara, Fatemi, Reza, Ferreira, Vinicius S., Burgos, Leslie Flores, Fowler, Austin G., Foxen, Brooks, Ganjam, Suhas, Gasca, Robert, Giang, William, Gidney, Craig, Gilboa, Dar, Giustina, Marissa, Gosula, Raja, Dau, Alejandro Grajales, Graumann, Dietrich, Greene, Alex, Habegger, Steve, Hamilton, Michael C., Hansen, Monica, Harrigan, Matthew P., Harrington, Sean D., Heslin, Stephen, Heu, Paula, Hill, Gordon, Hoffmann, Markus R., Huang, Hsin-Yuan, Huang, Trent, Huff, Ashley, Huggins, William J., Isakov, Sergei V., Jeffrey, Evan, Jiang, Zhang, Jones, Cody, Jordan, Stephen, Joshi, Chaitali, Juhas, Pavol, Kafri, Dvir, Kang, Hui, Kechedzhi, Kostyantyn, Khaire, Trupti, Khattar, Tanuj, Khezri, Mostafa, Kieferová, Mária, Kim, Seon, Kitaev, Alexei, Klimov, Paul V., Korotkov, Alexander N., Kostritsa, Fedor, Kreikebaum, John Mark, Landhuis, David, Langley, Brandon W., Laptev, Pavel, Lau, Kim-Ming, Guevel, Loïck Le, Ledford, Justin, Lee, Joonho, Lee, Kenny, Lensky, Yuri D., Lester, Brian J., Li, Wing Yan, Lill, Alexander T., Liu, Wayne, Livingston, William P., Locharla, Aditya, Lundahl, Daniel, Lunt, Aaron, Madhuk, Sid, Maloney, Ashley, Mandrà, Salvatore, Martin, Leigh S., Martin, Orion, Martin, Steven, Maxfield, Cameron, McClean, Jarrod R., McEwen, Matt, Meeks, Seneca, Miao, Kevin C., Mieszala, Amanda, Molina, Sebastian, Montazeri, Shirin, Morvan, Alexis, Movassagh, Ramis, Neill, Charles, Nersisyan, Ani, Newman, Michael, Nguyen, Anthony, Nguyen, Murray, Ni, Chia-Hung, Niu, Murphy Yuezhen, Oliver, William D., Ottosson, Kristoffer, Pizzuto, Alex, Potter, Rebecca, Pritchard, Orion, Pryadko, Leonid P., Quintana, Chris, Reagor, Matthew J., Rhodes, David M., Roberts, Gabrielle, Rocque, Charles, Rosenberg, Eliott, Rubin, Nicholas C., Saei, Negar, Sankaragomathi, Kannan, Satzinger, Kevin J., Schurkus, Henry F., Schuster, Christopher, Shearn, Michael J., Shorter, Aaron, Shutty, Noah, Shvarts, Vladimir, Sivak, Volodymyr, Skruzny, Jindra, Small, Spencer, Smith, W. Clarke, Springer, Sofia, Sterling, George, Suchard, Jordan, Szalay, Marco, Sztein, Alex, Thor, Douglas, Torres, Alfredo, Torunbalci, M. Mert, Vaishnav, Abeer, Vdovichev, Sergey, Villalonga, Benjamin, Heidweiller, Catherine Vollgraff, Waltman, Steven, Wang, Shannon X., White, Theodore, Wong, Kristi, Woo, Bryan W., Xing, Cheng, Yao, Z. Jamie, Yeh, Ping, Ying, Bicheng, Yoo, Juhwan, Yosri, Noureldin, Young, Grayson, Zalcman, Adam, Zhu, Ningfeng, Zobrist, Nicholas, Neven, Hartmut, Babbush, Ryan, Boixo, Sergio, Hilton, Jeremy, Lucero, Erik, Megrant, Anthony, Kelly, Julian, Chen, Yu, Smelyanskiy, Vadim, Vidal, Guifre, Roushan, Pedram, Lauchli, Andreas M., Abanin, Dmitry A., Mi, Xiao
Formato: Preprint
Publicado: 2024
Materias:
Acceso en línea:https://arxiv.org/abs/2405.17385
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author Andersen, Trond I.
Astrakhantsev, Nikita
Karamlou, Amir H.
Berndtsson, Julia
Motruk, Johannes
Szasz, Aaron
Gross, Jonathan A.
Schuckert, Alexander
Westerhout, Tom
Zhang, Yaxing
Forati, Ebrahim
Rossi, Dario
Kobrin, Bryce
Di Paolo, Agustin
Klots, Andrey R.
Drozdov, Ilya
Kurilovich, Vladislav D.
Petukhov, Andre
Ioffe, Lev B.
Elben, Andreas
Rath, Aniket
Vitale, Vittorio
Vermersch, Benoit
Acharya, Rajeev
Beni, Laleh Aghababaie
Anderson, Kyle
Ansmann, Markus
Arute, Frank
Arya, Kunal
Asfaw, Abraham
Atalaya, Juan
Ballard, Brian
Bardin, Joseph C.
Bengtsson, Andreas
Bilmes, Alexander
Bortoli, Gina
Bourassa, Alexandre
Bovaird, Jenna
Brill, Leon
Broughton, Michael
Browne, David A.
Buchea, Brett
Buckley, Bob B.
Buell, David A.
Burger, Tim
Burkett, Brian
Bushnell, Nicholas
Cabrera, Anthony
Campero, Juan
Chang, Hung-Shen
Chen, Zijun
Chiaro, Ben
Claes, Jahan
Cleland, Agnetta Y.
Cogan, Josh
Collins, Roberto
Conner, Paul
Courtney, William
Crook, Alexander L.
Das, Sayan
Debroy, Dripto M.
De Lorenzo, Laura
Barba, Alexander Del Toro
Demura, Sean
Donohoe, Paul
Dunsworth, Andrew
Earle, Clint
Eickbusch, Alec
Elbag, Aviv Moshe
Elzouka, Mahmoud
Erickson, Catherine
Faoro, Lara
Fatemi, Reza
Ferreira, Vinicius S.
Burgos, Leslie Flores
Fowler, Austin G.
Foxen, Brooks
Ganjam, Suhas
Gasca, Robert
Giang, William
Gidney, Craig
Gilboa, Dar
Giustina, Marissa
Gosula, Raja
Dau, Alejandro Grajales
Graumann, Dietrich
Greene, Alex
Habegger, Steve
Hamilton, Michael C.
Hansen, Monica
Harrigan, Matthew P.
Harrington, Sean D.
Heslin, Stephen
Heu, Paula
Hill, Gordon
Hoffmann, Markus R.
Huang, Hsin-Yuan
Huang, Trent
Huff, Ashley
Huggins, William J.
Isakov, Sergei V.
Jeffrey, Evan
Jiang, Zhang
Jones, Cody
Jordan, Stephen
Joshi, Chaitali
Juhas, Pavol
Kafri, Dvir
Kang, Hui
Kechedzhi, Kostyantyn
Khaire, Trupti
Khattar, Tanuj
Khezri, Mostafa
Kieferová, Mária
Kim, Seon
Kitaev, Alexei
Klimov, Paul V.
Korotkov, Alexander N.
Kostritsa, Fedor
Kreikebaum, John Mark
Landhuis, David
Langley, Brandon W.
Laptev, Pavel
Lau, Kim-Ming
Guevel, Loïck Le
Ledford, Justin
Lee, Joonho
Lee, Kenny
Lensky, Yuri D.
Lester, Brian J.
Li, Wing Yan
Lill, Alexander T.
Liu, Wayne
Livingston, William P.
Locharla, Aditya
Lundahl, Daniel
Lunt, Aaron
Madhuk, Sid
Maloney, Ashley
Mandrà, Salvatore
Martin, Leigh S.
Martin, Orion
Martin, Steven
Maxfield, Cameron
McClean, Jarrod R.
McEwen, Matt
Meeks, Seneca
Miao, Kevin C.
Mieszala, Amanda
Molina, Sebastian
Montazeri, Shirin
Morvan, Alexis
Movassagh, Ramis
Neill, Charles
Nersisyan, Ani
Newman, Michael
Nguyen, Anthony
Nguyen, Murray
Ni, Chia-Hung
Niu, Murphy Yuezhen
Oliver, William D.
Ottosson, Kristoffer
Pizzuto, Alex
Potter, Rebecca
Pritchard, Orion
Pryadko, Leonid P.
Quintana, Chris
Reagor, Matthew J.
Rhodes, David M.
Roberts, Gabrielle
Rocque, Charles
Rosenberg, Eliott
Rubin, Nicholas C.
Saei, Negar
Sankaragomathi, Kannan
Satzinger, Kevin J.
Schurkus, Henry F.
Schuster, Christopher
Shearn, Michael J.
Shorter, Aaron
Shutty, Noah
Shvarts, Vladimir
Sivak, Volodymyr
Skruzny, Jindra
Small, Spencer
Smith, W. Clarke
Springer, Sofia
Sterling, George
Suchard, Jordan
Szalay, Marco
Sztein, Alex
Thor, Douglas
Torres, Alfredo
Torunbalci, M. Mert
Vaishnav, Abeer
Vdovichev, Sergey
Villalonga, Benjamin
Heidweiller, Catherine Vollgraff
Waltman, Steven
Wang, Shannon X.
White, Theodore
Wong, Kristi
Woo, Bryan W.
Xing, Cheng
Yao, Z. Jamie
Yeh, Ping
Ying, Bicheng
Yoo, Juhwan
Yosri, Noureldin
Young, Grayson
Zalcman, Adam
Zhu, Ningfeng
Zobrist, Nicholas
Neven, Hartmut
Babbush, Ryan
Boixo, Sergio
Hilton, Jeremy
Lucero, Erik
Megrant, Anthony
Kelly, Julian
Chen, Yu
Smelyanskiy, Vadim
Vidal, Guifre
Roushan, Pedram
Lauchli, Andreas M.
Abanin, Dmitry A.
Mi, Xiao
author_facet Andersen, Trond I.
Astrakhantsev, Nikita
Karamlou, Amir H.
Berndtsson, Julia
Motruk, Johannes
Szasz, Aaron
Gross, Jonathan A.
Schuckert, Alexander
Westerhout, Tom
Zhang, Yaxing
Forati, Ebrahim
Rossi, Dario
Kobrin, Bryce
Di Paolo, Agustin
Klots, Andrey R.
Drozdov, Ilya
Kurilovich, Vladislav D.
Petukhov, Andre
Ioffe, Lev B.
Elben, Andreas
Rath, Aniket
Vitale, Vittorio
Vermersch, Benoit
Acharya, Rajeev
Beni, Laleh Aghababaie
Anderson, Kyle
Ansmann, Markus
Arute, Frank
Arya, Kunal
Asfaw, Abraham
Atalaya, Juan
Ballard, Brian
Bardin, Joseph C.
Bengtsson, Andreas
Bilmes, Alexander
Bortoli, Gina
Bourassa, Alexandre
Bovaird, Jenna
Brill, Leon
Broughton, Michael
Browne, David A.
Buchea, Brett
Buckley, Bob B.
Buell, David A.
Burger, Tim
Burkett, Brian
Bushnell, Nicholas
Cabrera, Anthony
Campero, Juan
Chang, Hung-Shen
Chen, Zijun
Chiaro, Ben
Claes, Jahan
Cleland, Agnetta Y.
Cogan, Josh
Collins, Roberto
Conner, Paul
Courtney, William
Crook, Alexander L.
Das, Sayan
Debroy, Dripto M.
De Lorenzo, Laura
Barba, Alexander Del Toro
Demura, Sean
Donohoe, Paul
Dunsworth, Andrew
Earle, Clint
Eickbusch, Alec
Elbag, Aviv Moshe
Elzouka, Mahmoud
Erickson, Catherine
Faoro, Lara
Fatemi, Reza
Ferreira, Vinicius S.
Burgos, Leslie Flores
Fowler, Austin G.
Foxen, Brooks
Ganjam, Suhas
Gasca, Robert
Giang, William
Gidney, Craig
Gilboa, Dar
Giustina, Marissa
Gosula, Raja
Dau, Alejandro Grajales
Graumann, Dietrich
Greene, Alex
Habegger, Steve
Hamilton, Michael C.
Hansen, Monica
Harrigan, Matthew P.
Harrington, Sean D.
Heslin, Stephen
Heu, Paula
Hill, Gordon
Hoffmann, Markus R.
Huang, Hsin-Yuan
Huang, Trent
Huff, Ashley
Huggins, William J.
Isakov, Sergei V.
Jeffrey, Evan
Jiang, Zhang
Jones, Cody
Jordan, Stephen
Joshi, Chaitali
Juhas, Pavol
Kafri, Dvir
Kang, Hui
Kechedzhi, Kostyantyn
Khaire, Trupti
Khattar, Tanuj
Khezri, Mostafa
Kieferová, Mária
Kim, Seon
Kitaev, Alexei
Klimov, Paul V.
Korotkov, Alexander N.
Kostritsa, Fedor
Kreikebaum, John Mark
Landhuis, David
Langley, Brandon W.
Laptev, Pavel
Lau, Kim-Ming
Guevel, Loïck Le
Ledford, Justin
Lee, Joonho
Lee, Kenny
Lensky, Yuri D.
Lester, Brian J.
Li, Wing Yan
Lill, Alexander T.
Liu, Wayne
Livingston, William P.
Locharla, Aditya
Lundahl, Daniel
Lunt, Aaron
Madhuk, Sid
Maloney, Ashley
Mandrà, Salvatore
Martin, Leigh S.
Martin, Orion
Martin, Steven
Maxfield, Cameron
McClean, Jarrod R.
McEwen, Matt
Meeks, Seneca
Miao, Kevin C.
Mieszala, Amanda
Molina, Sebastian
Montazeri, Shirin
Morvan, Alexis
Movassagh, Ramis
Neill, Charles
Nersisyan, Ani
Newman, Michael
Nguyen, Anthony
Nguyen, Murray
Ni, Chia-Hung
Niu, Murphy Yuezhen
Oliver, William D.
Ottosson, Kristoffer
Pizzuto, Alex
Potter, Rebecca
Pritchard, Orion
Pryadko, Leonid P.
Quintana, Chris
Reagor, Matthew J.
Rhodes, David M.
Roberts, Gabrielle
Rocque, Charles
Rosenberg, Eliott
Rubin, Nicholas C.
Saei, Negar
Sankaragomathi, Kannan
Satzinger, Kevin J.
Schurkus, Henry F.
Schuster, Christopher
Shearn, Michael J.
Shorter, Aaron
Shutty, Noah
Shvarts, Vladimir
Sivak, Volodymyr
Skruzny, Jindra
Small, Spencer
Smith, W. Clarke
Springer, Sofia
Sterling, George
Suchard, Jordan
Szalay, Marco
Sztein, Alex
Thor, Douglas
Torres, Alfredo
Torunbalci, M. Mert
Vaishnav, Abeer
Vdovichev, Sergey
Villalonga, Benjamin
Heidweiller, Catherine Vollgraff
Waltman, Steven
Wang, Shannon X.
White, Theodore
Wong, Kristi
Woo, Bryan W.
Xing, Cheng
Yao, Z. Jamie
Yeh, Ping
Ying, Bicheng
Yoo, Juhwan
Yosri, Noureldin
Young, Grayson
Zalcman, Adam
Zhu, Ningfeng
Zobrist, Nicholas
Neven, Hartmut
Babbush, Ryan
Boixo, Sergio
Hilton, Jeremy
Lucero, Erik
Megrant, Anthony
Kelly, Julian
Chen, Yu
Smelyanskiy, Vadim
Vidal, Guifre
Roushan, Pedram
Lauchli, Andreas M.
Abanin, Dmitry A.
Mi, Xiao
contents Understanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators. Unlocking the full potential of such systems toward this goal requires flexible initial state preparation, precise time evolution, and extensive probes for final state characterization. We present a quantum simulator comprising 69 superconducting qubits which supports both universal quantum gates and high-fidelity analog evolution, with performance beyond the reach of classical simulation in cross-entropy benchmarking experiments. Emulating a two-dimensional (2D) XY quantum magnet, we leverage a wide range of measurement techniques to study quantum states after ramps from an antiferromagnetic initial state. We observe signatures of the classical Kosterlitz-Thouless phase transition, as well as strong deviations from Kibble-Zurek scaling predictions attributed to the interplay between quantum and classical coarsening of the correlated domains. This interpretation is corroborated by injecting variable energy density into the initial state, which enables studying the effects of the eigenstate thermalization hypothesis (ETH) in targeted parts of the eigenspectrum. Finally, we digitally prepare the system in pairwise-entangled dimer states and image the transport of energy and vorticity during thermalization. These results establish the efficacy of superconducting analog-digital quantum processors for preparing states across many-body spectra and unveiling their thermalization dynamics.
format Preprint
id arxiv_https___arxiv_org_abs_2405_17385
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Thermalization and Criticality on an Analog-Digital Quantum Simulator
Andersen, Trond I.
Astrakhantsev, Nikita
Karamlou, Amir H.
Berndtsson, Julia
Motruk, Johannes
Szasz, Aaron
Gross, Jonathan A.
Schuckert, Alexander
Westerhout, Tom
Zhang, Yaxing
Forati, Ebrahim
Rossi, Dario
Kobrin, Bryce
Di Paolo, Agustin
Klots, Andrey R.
Drozdov, Ilya
Kurilovich, Vladislav D.
Petukhov, Andre
Ioffe, Lev B.
Elben, Andreas
Rath, Aniket
Vitale, Vittorio
Vermersch, Benoit
Acharya, Rajeev
Beni, Laleh Aghababaie
Anderson, Kyle
Ansmann, Markus
Arute, Frank
Arya, Kunal
Asfaw, Abraham
Atalaya, Juan
Ballard, Brian
Bardin, Joseph C.
Bengtsson, Andreas
Bilmes, Alexander
Bortoli, Gina
Bourassa, Alexandre
Bovaird, Jenna
Brill, Leon
Broughton, Michael
Browne, David A.
Buchea, Brett
Buckley, Bob B.
Buell, David A.
Burger, Tim
Burkett, Brian
Bushnell, Nicholas
Cabrera, Anthony
Campero, Juan
Chang, Hung-Shen
Chen, Zijun
Chiaro, Ben
Claes, Jahan
Cleland, Agnetta Y.
Cogan, Josh
Collins, Roberto
Conner, Paul
Courtney, William
Crook, Alexander L.
Das, Sayan
Debroy, Dripto M.
De Lorenzo, Laura
Barba, Alexander Del Toro
Demura, Sean
Donohoe, Paul
Dunsworth, Andrew
Earle, Clint
Eickbusch, Alec
Elbag, Aviv Moshe
Elzouka, Mahmoud
Erickson, Catherine
Faoro, Lara
Fatemi, Reza
Ferreira, Vinicius S.
Burgos, Leslie Flores
Fowler, Austin G.
Foxen, Brooks
Ganjam, Suhas
Gasca, Robert
Giang, William
Gidney, Craig
Gilboa, Dar
Giustina, Marissa
Gosula, Raja
Dau, Alejandro Grajales
Graumann, Dietrich
Greene, Alex
Habegger, Steve
Hamilton, Michael C.
Hansen, Monica
Harrigan, Matthew P.
Harrington, Sean D.
Heslin, Stephen
Heu, Paula
Hill, Gordon
Hoffmann, Markus R.
Huang, Hsin-Yuan
Huang, Trent
Huff, Ashley
Huggins, William J.
Isakov, Sergei V.
Jeffrey, Evan
Jiang, Zhang
Jones, Cody
Jordan, Stephen
Joshi, Chaitali
Juhas, Pavol
Kafri, Dvir
Kang, Hui
Kechedzhi, Kostyantyn
Khaire, Trupti
Khattar, Tanuj
Khezri, Mostafa
Kieferová, Mária
Kim, Seon
Kitaev, Alexei
Klimov, Paul V.
Korotkov, Alexander N.
Kostritsa, Fedor
Kreikebaum, John Mark
Landhuis, David
Langley, Brandon W.
Laptev, Pavel
Lau, Kim-Ming
Guevel, Loïck Le
Ledford, Justin
Lee, Joonho
Lee, Kenny
Lensky, Yuri D.
Lester, Brian J.
Li, Wing Yan
Lill, Alexander T.
Liu, Wayne
Livingston, William P.
Locharla, Aditya
Lundahl, Daniel
Lunt, Aaron
Madhuk, Sid
Maloney, Ashley
Mandrà, Salvatore
Martin, Leigh S.
Martin, Orion
Martin, Steven
Maxfield, Cameron
McClean, Jarrod R.
McEwen, Matt
Meeks, Seneca
Miao, Kevin C.
Mieszala, Amanda
Molina, Sebastian
Montazeri, Shirin
Morvan, Alexis
Movassagh, Ramis
Neill, Charles
Nersisyan, Ani
Newman, Michael
Nguyen, Anthony
Nguyen, Murray
Ni, Chia-Hung
Niu, Murphy Yuezhen
Oliver, William D.
Ottosson, Kristoffer
Pizzuto, Alex
Potter, Rebecca
Pritchard, Orion
Pryadko, Leonid P.
Quintana, Chris
Reagor, Matthew J.
Rhodes, David M.
Roberts, Gabrielle
Rocque, Charles
Rosenberg, Eliott
Rubin, Nicholas C.
Saei, Negar
Sankaragomathi, Kannan
Satzinger, Kevin J.
Schurkus, Henry F.
Schuster, Christopher
Shearn, Michael J.
Shorter, Aaron
Shutty, Noah
Shvarts, Vladimir
Sivak, Volodymyr
Skruzny, Jindra
Small, Spencer
Smith, W. Clarke
Springer, Sofia
Sterling, George
Suchard, Jordan
Szalay, Marco
Sztein, Alex
Thor, Douglas
Torres, Alfredo
Torunbalci, M. Mert
Vaishnav, Abeer
Vdovichev, Sergey
Villalonga, Benjamin
Heidweiller, Catherine Vollgraff
Waltman, Steven
Wang, Shannon X.
White, Theodore
Wong, Kristi
Woo, Bryan W.
Xing, Cheng
Yao, Z. Jamie
Yeh, Ping
Ying, Bicheng
Yoo, Juhwan
Yosri, Noureldin
Young, Grayson
Zalcman, Adam
Zhu, Ningfeng
Zobrist, Nicholas
Neven, Hartmut
Babbush, Ryan
Boixo, Sergio
Hilton, Jeremy
Lucero, Erik
Megrant, Anthony
Kelly, Julian
Chen, Yu
Smelyanskiy, Vadim
Vidal, Guifre
Roushan, Pedram
Lauchli, Andreas M.
Abanin, Dmitry A.
Mi, Xiao
Quantum Physics
Mesoscale and Nanoscale Physics
Strongly Correlated Electrons
Understanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators. Unlocking the full potential of such systems toward this goal requires flexible initial state preparation, precise time evolution, and extensive probes for final state characterization. We present a quantum simulator comprising 69 superconducting qubits which supports both universal quantum gates and high-fidelity analog evolution, with performance beyond the reach of classical simulation in cross-entropy benchmarking experiments. Emulating a two-dimensional (2D) XY quantum magnet, we leverage a wide range of measurement techniques to study quantum states after ramps from an antiferromagnetic initial state. We observe signatures of the classical Kosterlitz-Thouless phase transition, as well as strong deviations from Kibble-Zurek scaling predictions attributed to the interplay between quantum and classical coarsening of the correlated domains. This interpretation is corroborated by injecting variable energy density into the initial state, which enables studying the effects of the eigenstate thermalization hypothesis (ETH) in targeted parts of the eigenspectrum. Finally, we digitally prepare the system in pairwise-entangled dimer states and image the transport of energy and vorticity during thermalization. These results establish the efficacy of superconducting analog-digital quantum processors for preparing states across many-body spectra and unveiling their thermalization dynamics.
title Thermalization and Criticality on an Analog-Digital Quantum Simulator
topic Quantum Physics
Mesoscale and Nanoscale Physics
Strongly Correlated Electrons
url https://arxiv.org/abs/2405.17385