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Hilbert space signatures of non-ergodic glassy dynamics

Fuente: arXiv

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Dettagli Bibliografici
Autori principali:	Lunkin, Aleksey, Ticea, Nicole S., Kumar, Shashwat, Miao, Connie, Choi, Jaehong, Alghadeer, Mohammed, Drozdov, Ilya, Abanin, Dmitry, Abbas, Amira, Acharya, Rajeev, Beni, Laleh, Aigeldinger, Georg, Alcaraz, Ross, Alcaraz, Sayra, Ansmann, Markus, Arute, Frank, Arya, Kunal, Askew, Walt, Astrakhantsev, Nikita, Atalaya, Juan, Babbush, Ryan, Ballard, Brian, Bardin, Joseph C., Bates, Hector, Bengtsson, Andreas, Karimi, Majid, Bilmes, Alexander, Bilodeau, Simon, Borjans, Felix, Bourassa, Alexandre, Bovaird, Jenna, Bowers, Dylan, Brill, Leon, Brooks, Peter, Broughton, Michael, Browne, David A., Buchea, Brett, Buckley, Bob B., Burger, Tim, Burkett, Brian, Bushnell, Nicholas, Busnaina, Jamal, Cabrera, Anthony, Campero, Juan, Chang, Hung-Shen, Chen, Silas, Chen, Zijun, Chiaro, Ben, Chih, Liang-Ying, Cleland, Agnetta Y., Cochrane, Bryan, Cockrell, Matt, Cogan, Josh, Conner, Paul, Cook, Harold, Cortiñas, Rodrigo G., Courtney, William, Crook, Alexander L., Curtin, Ben, Damyanov, Martin, Das, Sayan, Debroy, Dripto M., Demura, Sean, Donohoe, Paul, Dunsworth, Andrew, Ehimhen, Valerie, Eickbusch, Alec, Elbag, Aviv Moshe, Ella, Lior, Elzouka, Mahmoud, Enriquez, David, Erickson, Catherine, Faoro, Lara, Ferreira, Vinicius S., Flores, Marcos, Burgos, Leslie, Fontes, Sam, Forati, Ebrahim, Ford, Jeremiah, Foxen, Brooks, Fukami, Masaya, Fung, Alan Wing, Fuste, Lenny, Ganjam, Suhas, Garcia, Gonzalo, Garrick, Christopher, Gasca, Robert, Gehring, Helge, Geiger, Robert, Giang, William, Gilboa, Dar, Goeders, James E., Gonzales, Edward C., Gosula, Raja, Graaf, Stijn J., Dau, Alejandro, Graumann, Dietrich, Grebel, Joel, Greene, Alex, Gross, Jonathan A., Guerrero, Jose, Guevel, Loïck, Ha, Tan, Habegger, Steve, Hadick, Tanner, Hadjikhani, Ali, Hamilton, Michael C., Hansen, Monica, Harrigan, Matthew P., Harrington, Sean D., Hartshorn, Jeanne, Heslin, Stephen, Heu, Paula, Higgott, Oscar, Hiltermann, Reno, Hilton, Jeremy, Huang, Hsin-Yuan, Hucka, Mike, Hudspeth, Christopher, Huff, Ashley, Huggins, William J., Jeffrey, Evan, Jevons, Shaun, Jiang, Zhang, Jin, Xiaoxuan, Jones, Cody, Joshi, Chaitali, Juhas, Pavol, Kabel, Andreas, Kafri, Dvir, Kang, Hui, Kang, Kiseo, Karamlou, Amir H., Kaufman, Ryan, Kechedzhi, Kostyantyn, Kelly, Julian, Khattar, Tanuj, Khezri, Mostafa, Kim, Seon, Klimov, Paul V., Knaut, Can M., Kobrin, Bryce, Korotkov, Alexander N., Kostritsa, Fedor, Kreikebaum, John Mark, Kudo, Ryuho, Kueffler, Ben, Kumar, Arun, Kurilovich, Vladislav D., Kutsko, Vitali, Lange-Dei, Tiano, Langley, Brandon W., Laptev, Pavel, Lau, Kim-Ming, Leavell, Emma, Ledford, Justin, Lee, Joonho, Lee, Joy, Lee, Kenny, Lester, Brian J., Leung, Wendy, Li, Lily, Li, Wing Yan, Li, Ming, Lill, Alexander T., Livingston, William P., Lloyd, Matthew T., Lorenzo, Laura, Lucero, Erik, Lundahl, Daniel, Lunt, Aaron, Madhuk, Sid, Maiti, Aniket, Maloney, Ashley, Mandrà, Salvatore, Martin, Leigh S., Martin, Orion, Mascot, Eric, Das, Paul, Maslov, Dmitri, Mathews, Melvin, Maxfield, Cameron, McClean, Jarrod R., McEwen, Matt, Meeks, Seneca, Megrant, Anthony, Miao, Kevin C., Minev, Zlatko K., Molavi, Reza, Molina, Sebastian, Montazeri, Shirin, Neill, Charles, Newman, Michael, Nguyen, Anthony, Nguyen, Murray, Ni, Chia-Hung, Niu, Murphy Yuezhen, Oas, Logan, Oliver, William D., Orosco, Raymond, Ottosson, Kristoffer, Pagano, Alice, Paolo, Agustin, Peek, Sherman, Peterson, David, Pizzuto, Alex, Portoles, Elias, Potter, Rebecca, Pritchard, Orion, Qian, Michael, Quintana, Chris, Ramachandran, Ganesh, Ranadive, Arpit, Reagor, Matthew J., Resnick, Rachel, Rhodes, David M., Riley, Daniel, Roberts, Gabrielle, Rodriguez, Roberto, Ropes, Emma, Rose, Lucia B., Rosenberg, Eliott, Rosenfeld, Emma, Rosenstock, Dario, Rossi, Elizabeth, Rower, David A., Salazar, Robert, Sankaragomathi, Kannan, Sarihan, Murat Can, Satzinger, Kevin J., Schaefer, Max, Schroeder, Sebastian, Schurkus, Henry F., Shahingohar, Aria, Shearn, Michael J., Shorter, Aaron, Shvarts, Vladimir, Sivak, Volodymyr, Small, Spencer, Smith, W. Clarke, Sobel, David A., Spells, Barrett, Springer, Sofia, Sterling, George, Suchard, Jordan, Szasz, Aaron, Sztein, Alexander, Taylor, Madeline, Thiruraman, Jothi Priyanka, Thor, Douglas, Timucin, Dogan, Tomita, Eifu, Torres, Alfredo, Torunbalci, M. Mert, Tran, Hao, Vaishnav, Abeer, Vargas, Justin, Vdovichev, Sergey, Vidal, Guifre, Villalonga, Benjamin, Heidweiller, Catherine, Voorhees, Meghan, Waltman, Steven, Waltz, Jonathan, Wang, Shannon X., Ware, Brayden, Watson, James D., Wei, Yonghua, Weidel, Travis, White, Theodore, Wong, Kristi, Woo, Bryan W., Wood, Christopher J., Woodson, Maddy, Xing, Cheng, Yao, Z. Jamie, Yeh, Ping, Ying, Bicheng, Yoo, Juhwan, Yosri, Noureldin, Young, Elliot, Young, Grayson, Zalcman, Adam, Zhang, Ran, Zhang, Yaxing, Zhu, Ningfeng, Zobrist, Nicholas, Zou, Zhenjie, Boixo, Sergio, Neven, Hartmut, Smelyanskiy, Vadim, Andersen, Trond I., Roushan, Pedram, Feigelman, Mikhail V., Ioffe, Lev B.
Natura:	Preprint
Pubblicazione:	2026
Soggetti:	Quantum Physics Disordered Systems and Neural Networks
Accesso online:	Acceder al recurso
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_version_	1866908967251214336
author	Lunkin, Aleksey Ticea, Nicole S. Kumar, Shashwat Miao, Connie Choi, Jaehong Alghadeer, Mohammed Drozdov, Ilya Abanin, Dmitry Abbas, Amira Acharya, Rajeev Beni, Laleh Aigeldinger, Georg Alcaraz, Ross Alcaraz, Sayra Ansmann, Markus Arute, Frank Arya, Kunal Askew, Walt Astrakhantsev, Nikita Atalaya, Juan Babbush, Ryan Ballard, Brian Bardin, Joseph C. Bates, Hector Bengtsson, Andreas Karimi, Majid Bilmes, Alexander Bilodeau, Simon Borjans, Felix Bourassa, Alexandre Bovaird, Jenna Bowers, Dylan Brill, Leon Brooks, Peter Broughton, Michael Browne, David A. Buchea, Brett Buckley, Bob B. Burger, Tim Burkett, Brian Bushnell, Nicholas Busnaina, Jamal Cabrera, Anthony Campero, Juan Chang, Hung-Shen Chen, Silas Chen, Zijun Chiaro, Ben Chih, Liang-Ying Cleland, Agnetta Y. Cochrane, Bryan Cockrell, Matt Cogan, Josh Conner, Paul Cook, Harold Cortiñas, Rodrigo G. Courtney, William Crook, Alexander L. Curtin, Ben Damyanov, Martin Das, Sayan Debroy, Dripto M. Demura, Sean Donohoe, Paul Dunsworth, Andrew Ehimhen, Valerie Eickbusch, Alec Elbag, Aviv Moshe Ella, Lior Elzouka, Mahmoud Enriquez, David Erickson, Catherine Faoro, Lara Ferreira, Vinicius S. Flores, Marcos Burgos, Leslie Fontes, Sam Forati, Ebrahim Ford, Jeremiah Foxen, Brooks Fukami, Masaya Fung, Alan Wing Fuste, Lenny Ganjam, Suhas Garcia, Gonzalo Garrick, Christopher Gasca, Robert Gehring, Helge Geiger, Robert Giang, William Gilboa, Dar Goeders, James E. Gonzales, Edward C. Gosula, Raja Graaf, Stijn J. Dau, Alejandro Graumann, Dietrich Grebel, Joel Greene, Alex Gross, Jonathan A. Guerrero, Jose Guevel, Loïck Ha, Tan Habegger, Steve Hadick, Tanner Hadjikhani, Ali Hamilton, Michael C. Hansen, Monica Harrigan, Matthew P. Harrington, Sean D. Hartshorn, Jeanne Heslin, Stephen Heu, Paula Higgott, Oscar Hiltermann, Reno Hilton, Jeremy Huang, Hsin-Yuan Hucka, Mike Hudspeth, Christopher Huff, Ashley Huggins, William J. Jeffrey, Evan Jevons, Shaun Jiang, Zhang Jin, Xiaoxuan Jones, Cody Joshi, Chaitali Juhas, Pavol Kabel, Andreas Kafri, Dvir Kang, Hui Kang, Kiseo Karamlou, Amir H. Kaufman, Ryan Kechedzhi, Kostyantyn Kelly, Julian Khattar, Tanuj Khezri, Mostafa Kim, Seon Klimov, Paul V. Knaut, Can M. Kobrin, Bryce Korotkov, Alexander N. Kostritsa, Fedor Kreikebaum, John Mark Kudo, Ryuho Kueffler, Ben Kumar, Arun Kurilovich, Vladislav D. Kutsko, Vitali Lange-Dei, Tiano Langley, Brandon W. Laptev, Pavel Lau, Kim-Ming Leavell, Emma Ledford, Justin Lee, Joonho Lee, Joy Lee, Kenny Lester, Brian J. Leung, Wendy Li, Lily Li, Wing Yan Li, Ming Lill, Alexander T. Livingston, William P. Lloyd, Matthew T. Lorenzo, Laura Lucero, Erik Lundahl, Daniel Lunt, Aaron Madhuk, Sid Maiti, Aniket Maloney, Ashley Mandrà, Salvatore Martin, Leigh S. Martin, Orion Mascot, Eric Das, Paul Maslov, Dmitri Mathews, Melvin Maxfield, Cameron McClean, Jarrod R. McEwen, Matt Meeks, Seneca Megrant, Anthony Miao, Kevin C. Minev, Zlatko K. Molavi, Reza Molina, Sebastian Montazeri, Shirin Neill, Charles Newman, Michael Nguyen, Anthony Nguyen, Murray Ni, Chia-Hung Niu, Murphy Yuezhen Oas, Logan Oliver, William D. Orosco, Raymond Ottosson, Kristoffer Pagano, Alice Paolo, Agustin Peek, Sherman Peterson, David Pizzuto, Alex Portoles, Elias Potter, Rebecca Pritchard, Orion Qian, Michael Quintana, Chris Ramachandran, Ganesh Ranadive, Arpit Reagor, Matthew J. Resnick, Rachel Rhodes, David M. Riley, Daniel Roberts, Gabrielle Rodriguez, Roberto Ropes, Emma Rose, Lucia B. Rosenberg, Eliott Rosenfeld, Emma Rosenstock, Dario Rossi, Elizabeth Rower, David A. Salazar, Robert Sankaragomathi, Kannan Sarihan, Murat Can Satzinger, Kevin J. Schaefer, Max Schroeder, Sebastian Schurkus, Henry F. Shahingohar, Aria Shearn, Michael J. Shorter, Aaron Shvarts, Vladimir Sivak, Volodymyr Small, Spencer Smith, W. Clarke Sobel, David A. Spells, Barrett Springer, Sofia Sterling, George Suchard, Jordan Szasz, Aaron Sztein, Alexander Taylor, Madeline Thiruraman, Jothi Priyanka Thor, Douglas Timucin, Dogan Tomita, Eifu Torres, Alfredo Torunbalci, M. Mert Tran, Hao Vaishnav, Abeer Vargas, Justin Vdovichev, Sergey Vidal, Guifre Villalonga, Benjamin Heidweiller, Catherine Voorhees, Meghan Waltman, Steven Waltz, Jonathan Wang, Shannon X. Ware, Brayden Watson, James D. Wei, Yonghua Weidel, Travis White, Theodore Wong, Kristi Woo, Bryan W. Wood, Christopher J. Woodson, Maddy Xing, Cheng Yao, Z. Jamie Yeh, Ping Ying, Bicheng Yoo, Juhwan Yosri, Noureldin Young, Elliot Young, Grayson Zalcman, Adam Zhang, Ran Zhang, Yaxing Zhu, Ningfeng Zobrist, Nicholas Zou, Zhenjie Boixo, Sergio Neven, Hartmut Smelyanskiy, Vadim Andersen, Trond I. Roushan, Pedram Feigelman, Mikhail V. Ioffe, Lev B.
author_facet	Lunkin, Aleksey Ticea, Nicole S. Kumar, Shashwat Miao, Connie Choi, Jaehong Alghadeer, Mohammed Drozdov, Ilya Abanin, Dmitry Abbas, Amira Acharya, Rajeev Beni, Laleh Aigeldinger, Georg Alcaraz, Ross Alcaraz, Sayra Ansmann, Markus Arute, Frank Arya, Kunal Askew, Walt Astrakhantsev, Nikita Atalaya, Juan Babbush, Ryan Ballard, Brian Bardin, Joseph C. Bates, Hector Bengtsson, Andreas Karimi, Majid Bilmes, Alexander Bilodeau, Simon Borjans, Felix Bourassa, Alexandre Bovaird, Jenna Bowers, Dylan Brill, Leon Brooks, Peter Broughton, Michael Browne, David A. Buchea, Brett Buckley, Bob B. Burger, Tim Burkett, Brian Bushnell, Nicholas Busnaina, Jamal Cabrera, Anthony Campero, Juan Chang, Hung-Shen Chen, Silas Chen, Zijun Chiaro, Ben Chih, Liang-Ying Cleland, Agnetta Y. Cochrane, Bryan Cockrell, Matt Cogan, Josh Conner, Paul Cook, Harold Cortiñas, Rodrigo G. Courtney, William Crook, Alexander L. Curtin, Ben Damyanov, Martin Das, Sayan Debroy, Dripto M. Demura, Sean Donohoe, Paul Dunsworth, Andrew Ehimhen, Valerie Eickbusch, Alec Elbag, Aviv Moshe Ella, Lior Elzouka, Mahmoud Enriquez, David Erickson, Catherine Faoro, Lara Ferreira, Vinicius S. Flores, Marcos Burgos, Leslie Fontes, Sam Forati, Ebrahim Ford, Jeremiah Foxen, Brooks Fukami, Masaya Fung, Alan Wing Fuste, Lenny Ganjam, Suhas Garcia, Gonzalo Garrick, Christopher Gasca, Robert Gehring, Helge Geiger, Robert Giang, William Gilboa, Dar Goeders, James E. Gonzales, Edward C. Gosula, Raja Graaf, Stijn J. Dau, Alejandro Graumann, Dietrich Grebel, Joel Greene, Alex Gross, Jonathan A. Guerrero, Jose Guevel, Loïck Ha, Tan Habegger, Steve Hadick, Tanner Hadjikhani, Ali Hamilton, Michael C. Hansen, Monica Harrigan, Matthew P. Harrington, Sean D. Hartshorn, Jeanne Heslin, Stephen Heu, Paula Higgott, Oscar Hiltermann, Reno Hilton, Jeremy Huang, Hsin-Yuan Hucka, Mike Hudspeth, Christopher Huff, Ashley Huggins, William J. Jeffrey, Evan Jevons, Shaun Jiang, Zhang Jin, Xiaoxuan Jones, Cody Joshi, Chaitali Juhas, Pavol Kabel, Andreas Kafri, Dvir Kang, Hui Kang, Kiseo Karamlou, Amir H. Kaufman, Ryan Kechedzhi, Kostyantyn Kelly, Julian Khattar, Tanuj Khezri, Mostafa Kim, Seon Klimov, Paul V. Knaut, Can M. Kobrin, Bryce Korotkov, Alexander N. Kostritsa, Fedor Kreikebaum, John Mark Kudo, Ryuho Kueffler, Ben Kumar, Arun Kurilovich, Vladislav D. Kutsko, Vitali Lange-Dei, Tiano Langley, Brandon W. Laptev, Pavel Lau, Kim-Ming Leavell, Emma Ledford, Justin Lee, Joonho Lee, Joy Lee, Kenny Lester, Brian J. Leung, Wendy Li, Lily Li, Wing Yan Li, Ming Lill, Alexander T. Livingston, William P. Lloyd, Matthew T. Lorenzo, Laura Lucero, Erik Lundahl, Daniel Lunt, Aaron Madhuk, Sid Maiti, Aniket Maloney, Ashley Mandrà, Salvatore Martin, Leigh S. Martin, Orion Mascot, Eric Das, Paul Maslov, Dmitri Mathews, Melvin Maxfield, Cameron McClean, Jarrod R. McEwen, Matt Meeks, Seneca Megrant, Anthony Miao, Kevin C. Minev, Zlatko K. Molavi, Reza Molina, Sebastian Montazeri, Shirin Neill, Charles Newman, Michael Nguyen, Anthony Nguyen, Murray Ni, Chia-Hung Niu, Murphy Yuezhen Oas, Logan Oliver, William D. Orosco, Raymond Ottosson, Kristoffer Pagano, Alice Paolo, Agustin Peek, Sherman Peterson, David Pizzuto, Alex Portoles, Elias Potter, Rebecca Pritchard, Orion Qian, Michael Quintana, Chris Ramachandran, Ganesh Ranadive, Arpit Reagor, Matthew J. Resnick, Rachel Rhodes, David M. Riley, Daniel Roberts, Gabrielle Rodriguez, Roberto Ropes, Emma Rose, Lucia B. Rosenberg, Eliott Rosenfeld, Emma Rosenstock, Dario Rossi, Elizabeth Rower, David A. Salazar, Robert Sankaragomathi, Kannan Sarihan, Murat Can Satzinger, Kevin J. Schaefer, Max Schroeder, Sebastian Schurkus, Henry F. Shahingohar, Aria Shearn, Michael J. Shorter, Aaron Shvarts, Vladimir Sivak, Volodymyr Small, Spencer Smith, W. Clarke Sobel, David A. Spells, Barrett Springer, Sofia Sterling, George Suchard, Jordan Szasz, Aaron Sztein, Alexander Taylor, Madeline Thiruraman, Jothi Priyanka Thor, Douglas Timucin, Dogan Tomita, Eifu Torres, Alfredo Torunbalci, M. Mert Tran, Hao Vaishnav, Abeer Vargas, Justin Vdovichev, Sergey Vidal, Guifre Villalonga, Benjamin Heidweiller, Catherine Voorhees, Meghan Waltman, Steven Waltz, Jonathan Wang, Shannon X. Ware, Brayden Watson, James D. Wei, Yonghua Weidel, Travis White, Theodore Wong, Kristi Woo, Bryan W. Wood, Christopher J. Woodson, Maddy Xing, Cheng Yao, Z. Jamie Yeh, Ping Ying, Bicheng Yoo, Juhwan Yosri, Noureldin Young, Elliot Young, Grayson Zalcman, Adam Zhang, Ran Zhang, Yaxing Zhu, Ningfeng Zobrist, Nicholas Zou, Zhenjie Boixo, Sergio Neven, Hartmut Smelyanskiy, Vadim Andersen, Trond I. Roushan, Pedram Feigelman, Mikhail V. Ioffe, Lev B.
contents	Disorder in quantum many-body systems can drive transitions between ergodic and non-ergodic phases, yet the nature--and even the existence--of these transitions remains intensely debated. Using a two-dimensional array of superconducting qubits, we study an interacting spin model at finite temperature in a disordered landscape, tracking dynamics both in real space and in Hilbert space. Over a broad disorder range, we observe an intermediate non-ergodic regime with glass-like characteristics: physical observables become broadly distributed and some, but not all, degrees of freedom are effectively frozen. The Hilbert-space return probability shows slow power-law decay, consistent with finite-temperature quantum glassiness. In the same regime, we detect the onset of a finite Edwards-Anderson order parameter and the disappearance of spin diffusion. By contrast, at lower disorder, spin transport persists with a nonzero diffusion coefficient. Our results show that there is a transition out of the ergodic phase in two-dimensional systems.
format	Preprint
id	arxiv_https___arxiv_org_abs_2601_01309
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Hilbert space signatures of non-ergodic glassy dynamics Lunkin, Aleksey Ticea, Nicole S. Kumar, Shashwat Miao, Connie Choi, Jaehong Alghadeer, Mohammed Drozdov, Ilya Abanin, Dmitry Abbas, Amira Acharya, Rajeev Beni, Laleh Aigeldinger, Georg Alcaraz, Ross Alcaraz, Sayra Ansmann, Markus Arute, Frank Arya, Kunal Askew, Walt Astrakhantsev, Nikita Atalaya, Juan Babbush, Ryan Ballard, Brian Bardin, Joseph C. Bates, Hector Bengtsson, Andreas Karimi, Majid Bilmes, Alexander Bilodeau, Simon Borjans, Felix Bourassa, Alexandre Bovaird, Jenna Bowers, Dylan Brill, Leon Brooks, Peter Broughton, Michael Browne, David A. Buchea, Brett Buckley, Bob B. Burger, Tim Burkett, Brian Bushnell, Nicholas Busnaina, Jamal Cabrera, Anthony Campero, Juan Chang, Hung-Shen Chen, Silas Chen, Zijun Chiaro, Ben Chih, Liang-Ying Cleland, Agnetta Y. Cochrane, Bryan Cockrell, Matt Cogan, Josh Conner, Paul Cook, Harold Cortiñas, Rodrigo G. Courtney, William Crook, Alexander L. Curtin, Ben Damyanov, Martin Das, Sayan Debroy, Dripto M. Demura, Sean Donohoe, Paul Dunsworth, Andrew Ehimhen, Valerie Eickbusch, Alec Elbag, Aviv Moshe Ella, Lior Elzouka, Mahmoud Enriquez, David Erickson, Catherine Faoro, Lara Ferreira, Vinicius S. Flores, Marcos Burgos, Leslie Fontes, Sam Forati, Ebrahim Ford, Jeremiah Foxen, Brooks Fukami, Masaya Fung, Alan Wing Fuste, Lenny Ganjam, Suhas Garcia, Gonzalo Garrick, Christopher Gasca, Robert Gehring, Helge Geiger, Robert Giang, William Gilboa, Dar Goeders, James E. Gonzales, Edward C. Gosula, Raja Graaf, Stijn J. Dau, Alejandro Graumann, Dietrich Grebel, Joel Greene, Alex Gross, Jonathan A. Guerrero, Jose Guevel, Loïck Ha, Tan Habegger, Steve Hadick, Tanner Hadjikhani, Ali Hamilton, Michael C. Hansen, Monica Harrigan, Matthew P. Harrington, Sean D. Hartshorn, Jeanne Heslin, Stephen Heu, Paula Higgott, Oscar Hiltermann, Reno Hilton, Jeremy Huang, Hsin-Yuan Hucka, Mike Hudspeth, Christopher Huff, Ashley Huggins, William J. Jeffrey, Evan Jevons, Shaun Jiang, Zhang Jin, Xiaoxuan Jones, Cody Joshi, Chaitali Juhas, Pavol Kabel, Andreas Kafri, Dvir Kang, Hui Kang, Kiseo Karamlou, Amir H. Kaufman, Ryan Kechedzhi, Kostyantyn Kelly, Julian Khattar, Tanuj Khezri, Mostafa Kim, Seon Klimov, Paul V. Knaut, Can M. Kobrin, Bryce Korotkov, Alexander N. Kostritsa, Fedor Kreikebaum, John Mark Kudo, Ryuho Kueffler, Ben Kumar, Arun Kurilovich, Vladislav D. Kutsko, Vitali Lange-Dei, Tiano Langley, Brandon W. Laptev, Pavel Lau, Kim-Ming Leavell, Emma Ledford, Justin Lee, Joonho Lee, Joy Lee, Kenny Lester, Brian J. Leung, Wendy Li, Lily Li, Wing Yan Li, Ming Lill, Alexander T. Livingston, William P. Lloyd, Matthew T. Lorenzo, Laura Lucero, Erik Lundahl, Daniel Lunt, Aaron Madhuk, Sid Maiti, Aniket Maloney, Ashley Mandrà, Salvatore Martin, Leigh S. Martin, Orion Mascot, Eric Das, Paul Maslov, Dmitri Mathews, Melvin Maxfield, Cameron McClean, Jarrod R. McEwen, Matt Meeks, Seneca Megrant, Anthony Miao, Kevin C. Minev, Zlatko K. Molavi, Reza Molina, Sebastian Montazeri, Shirin Neill, Charles Newman, Michael Nguyen, Anthony Nguyen, Murray Ni, Chia-Hung Niu, Murphy Yuezhen Oas, Logan Oliver, William D. Orosco, Raymond Ottosson, Kristoffer Pagano, Alice Paolo, Agustin Peek, Sherman Peterson, David Pizzuto, Alex Portoles, Elias Potter, Rebecca Pritchard, Orion Qian, Michael Quintana, Chris Ramachandran, Ganesh Ranadive, Arpit Reagor, Matthew J. Resnick, Rachel Rhodes, David M. Riley, Daniel Roberts, Gabrielle Rodriguez, Roberto Ropes, Emma Rose, Lucia B. Rosenberg, Eliott Rosenfeld, Emma Rosenstock, Dario Rossi, Elizabeth Rower, David A. Salazar, Robert Sankaragomathi, Kannan Sarihan, Murat Can Satzinger, Kevin J. Schaefer, Max Schroeder, Sebastian Schurkus, Henry F. Shahingohar, Aria Shearn, Michael J. Shorter, Aaron Shvarts, Vladimir Sivak, Volodymyr Small, Spencer Smith, W. Clarke Sobel, David A. Spells, Barrett Springer, Sofia Sterling, George Suchard, Jordan Szasz, Aaron Sztein, Alexander Taylor, Madeline Thiruraman, Jothi Priyanka Thor, Douglas Timucin, Dogan Tomita, Eifu Torres, Alfredo Torunbalci, M. Mert Tran, Hao Vaishnav, Abeer Vargas, Justin Vdovichev, Sergey Vidal, Guifre Villalonga, Benjamin Heidweiller, Catherine Voorhees, Meghan Waltman, Steven Waltz, Jonathan Wang, Shannon X. Ware, Brayden Watson, James D. Wei, Yonghua Weidel, Travis White, Theodore Wong, Kristi Woo, Bryan W. Wood, Christopher J. Woodson, Maddy Xing, Cheng Yao, Z. Jamie Yeh, Ping Ying, Bicheng Yoo, Juhwan Yosri, Noureldin Young, Elliot Young, Grayson Zalcman, Adam Zhang, Ran Zhang, Yaxing Zhu, Ningfeng Zobrist, Nicholas Zou, Zhenjie Boixo, Sergio Neven, Hartmut Smelyanskiy, Vadim Andersen, Trond I. Roushan, Pedram Feigelman, Mikhail V. Ioffe, Lev B. Quantum Physics Disordered Systems and Neural Networks Disorder in quantum many-body systems can drive transitions between ergodic and non-ergodic phases, yet the nature--and even the existence--of these transitions remains intensely debated. Using a two-dimensional array of superconducting qubits, we study an interacting spin model at finite temperature in a disordered landscape, tracking dynamics both in real space and in Hilbert space. Over a broad disorder range, we observe an intermediate non-ergodic regime with glass-like characteristics: physical observables become broadly distributed and some, but not all, degrees of freedom are effectively frozen. The Hilbert-space return probability shows slow power-law decay, consistent with finite-temperature quantum glassiness. In the same regime, we detect the onset of a finite Edwards-Anderson order parameter and the disappearance of spin diffusion. By contrast, at lower disorder, spin transport persists with a nonzero diffusion coefficient. Our results show that there is a transition out of the ergodic phase in two-dimensional systems.
title	Hilbert space signatures of non-ergodic glassy dynamics
topic	Quantum Physics Disordered Systems and Neural Networks
url	https://arxiv.org/abs/2601.01309