Observation of disorder-free localization and efficient disorder averaging on a quantum processor

• Main Authors: Gyawali, Gaurav, Cochran, Tyler, Lensky, Yuri, Karamlou, Amir H, Westerhout, Tom, Acharya, Rajeev, Arute, Frank, Atalaya, Juan, Babbush, Ryan, Ballard, Brian, Bilmes, Alexander, Bortoli, Gina, Bourassa, Alexandre, Bovaird, Jenna, Brill, Leon, Broughton, Michael, Browne, David A, Buckley, Bob B, Buell, David A, Bushnell, Nicholas, Cleland, Agnetta Y, Cogan, Josh, Collins, Roberto, De Lorenzo, Laura, Drozdov, Ilya, Erickson, Catherine, Fatemi, Reza, Ferreira, Vinicius S, Burgos, Leslie Flores, Forati, Ebrahim, Fowler, Austin G, Ganjam, Suhas, Giang, William, Dau, Alejandro Grajales, Graumann, Dietrich, Greene, Alex, Heu, Paula, Hoffmann, Markus R, Huang, Hsin-Yuan, Huggins, William J, Jeffrey, Evan, Jordan, Stephen, Joshi, Chaitali, Khaire, Trupti, Khezri, Mostafa, Kim, Seon, Klimov, Paul V, Kobrin, Bryce, Langley, Brandon W, Laptev, Pavel, Guevel, Loïck Le, Ledford, Justin, Lee, Joonho, Li, Wing Yan, Livingston, William P, Locharla, Aditya, Lunt, Aaron, Madhuk, Sid, Martin, Orion, Maxfield, Cameron, McClean, Jarrod R, Mi, Xiao, Molina, Sebastian, Neill, Charles, Nersisyan, Ani, Newman, Michael, Nguyen, Anthony, Nguyen, Murray, Niu, Murphy Yuezhen, Oliver, William D, Pizzuto, Alex, Rhodes, David M, Roberts, Gabrielle, Rocque, Charles, Saei, Negar, Sankaragomathi, Kannan, Schurkus, Henry F, Shearn, Michael J, Smith, W. Clarke, Suchard, Jordan, Szasz, Aaron, Thor, Douglas, Torunbalci, M. Mert, White, Theodore, Wong, Kristi, Woo, Bryan W. K, Xing, Cheng, Yao, Z. Jamie, Yeh, Ping, Yosri, Noureldin, Young, Grayson, Zalcman, Adam, Zhang, Yaxing, Zobrist, Nicholas, Chen, Yu, Neven, Hartmut, Kovrizhin, Dmitry, Knolle, Johannes, Halimeh, Jad C, Aleiner, Igor
• Format: Journal Article
• Language: English
• Published: 09.10.2024
• Subjects: Physics - Disordered Systems and Neural Networks; Physics - High Energy Physics - Lattice; Physics - Quantum Physics; Physics - Strongly Correlated Electrons
• DOI: 10.48550/arxiv.2410.06557

One of the most challenging problems in the computational study of localization in quantum manybody systems is to capture the effects of rare events, which requires sampling over exponentially many disorder realizations. We implement an efficient procedure on a quantum processor, leveraging quantum parallelism, to efficiently sample over all disorder realizations. We observe localization without disorder in quantum many-body dynamics in one and two dimensions: perturbations do not diffuse even though both the generator of evolution and the initial states are fully translationally invariant. The disorder strength as well as its density can be readily tuned using the initial state. Furthermore, we demonstrate the versatility of our platform by measuring Renyi entropies. Our method could also be extended to higher moments of the physical observables and disorder learning.