Display options
Cite
Guo Q, Cheng C, Li H, et al. Stark Many-Body Localization on a Superconducting Quantum Processor. Phys Rev Lett. 2021;127(24):240502doi: 10.1103/PhysRevLett.127.240502.
Guo, Q., Cheng, C., Li, H., Xu, S., Zhang, P., Wang, Z., Song, C., Liu, W., Ren, W., Dong, H., Mondaini, R., & Wang, H. (2021). Stark Many-Body Localization on a Superconducting Quantum Processor. Physical review letters, 127(24), 240502. https://doi.org/10.1103/PhysRevLett.127.240502
Guo, Qiujiang, et al. "Stark Many-Body Localization on a Superconducting Quantum Processor." Physical review letters vol. 127,24 (2021): 240502. doi: https://doi.org/10.1103/PhysRevLett.127.240502
Guo Q, Cheng C, Li H, Xu S, Zhang P, Wang Z, Song C, Liu W, Ren W, Dong H, Mondaini R, Wang H. Stark Many-Body Localization on a Superconducting Quantum Processor. Phys Rev Lett. 2021 Dec 10;127(24):240502. doi: 10.1103/PhysRevLett.127.240502. PMID: 34951777.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2021 Dec 10;127(24):240502. doi: 10.1103/PhysRevLett.127.240502.

Stark Many-Body Localization on a Superconducting Quantum Processor.

Physical review letters

Qiujiang Guo, Chen Cheng, Hekang Li, Shibo Xu, Pengfei Zhang, Zhen Wang, Chao Song, Wuxin Liu, Wenhui Ren, Hang Dong, Rubem Mondaini, H Wang

Affiliations

  1. Department of Physics and Hangzhou Innovation Center, Interdisciplinary Center for Quantum Information, Zhejiang Province Key Laboratory of Quantum Technology and Device, Zhejiang University, Hangzhou 310027, China.
  2. School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China.
  3. Beijing Computational Science Research Center, Beijing 100094, China.

PMID: 34951777 DOI: 10.1103/PhysRevLett.127.240502

Abstract

Quantum emulators, owing to their large degree of tunability and control, allow the observation of fine aspects of closed quantum many-body systems, as either the regime where thermalization takes place or when it is halted by the presence of disorder. The latter, dubbed many-body localization (MBL) phenomenon, describes the nonergodic behavior that is dynamically identified by the preservation of local information and slow entanglement growth. Here, we provide a precise observation of this same phenomenology in the case where the quenched on-site energy landscape is not disordered, but rather linearly varied, emulating the Stark MBL. To this end, we construct a quantum device composed of 29 functional superconducting qubits, faithfully reproducing the relaxation dynamics of a nonintegrable spin model. At large Stark potentials, local observables display periodic Bloch oscillations, a manifesting characteristic of the fragmentation of the Hilbert space in sectors that conserve dipole moments. The flexible programmability of our quantum emulator highlights its potential in helping the understanding of nontrivial quantum many-body problems, in direct complement to simulations in classical computers.

Publication Types