Stable quantum-correlated many-body states through engineered dissipation

被引：45

作者：

Mi, X. ^{[1
]}

Michailidis, A. A. ^{[2
]}

Shabani, S. ^{[1
]}

Miao, K. C. ^{[1
]}

Klimov, P. V. ^{[1
]}

Lloyd, J. ^{[2
]}

Rosenberg, E. ^{[1
]}

Acharya, R. ^{[1
]}

Aleiner, I. ^{[1
]}

Andersen, T. I. ^{[1
]}

Ansmann, M. ^{[1
]}

Arute, F. ^{[1
]}

Arya, K. ^{[1
]}

Asfaw, A. ^{[1
]}

Atalaya, J. ^{[1
]}

Bardin, J. C. ^{[1
,3
]}

Bengtsson, A. ^{[1
]}

Bortoli, G. ^{[1
]}

Bourassa, A. ^{[1
]}

Bovaird, J. ^{[1
]}

Brill, L. ^{[1
]}

Broughton, M. ^{[1
]}

Buckley, B. B. ^{[1
]}

Buell, D. A. ^{[1
]}

Burger, T. ^{[1
]}

Burkett, B. ^{[1
]}

Bushnell, N. ^{[1
]}

Chen, Z. ^{[1
]}

Chiaro, B. ^{[1
]}

Chik, D. ^{[1
]}

Chou, C. ^{[1
]}

Cogan, J. ^{[1
]}

Collins, R. ^{[1
]}

Conner, P. ^{[1
]}

Courtney, W. ^{[1
]}

Crook, A. L. ^{[1
]}

Curtin, B. ^{[1
]}

Dau, A. G. ^{[1
]}

Debroy, D. M. ^{[1
]}

Barba, A. Del Toro ^{[1
]}

Demura, S. ^{[1
]}

Di Paolo, A. ^{[1
]}

Drozdov, I. K. ^{[1
]}

Dunsworth, A. ^{[1
]}

Erickson, C. ^{[1
]}

Faoro, L. ^{[1
]}

Farhi, E. ^{[1
]}

Fatemi, R. ^{[1
]}

Ferreira, V. S. ^{[1
]}

Burgos, L. F. ^{[1
]}

机构：

[1] Google Res, Mountain View, CA 94043 USA

[2] Univ Geneva, Dept Theoret Phys, Geneva, Switzerland

[3] Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA USA

[4] Auburn Univ, Dept Elect & Comp Engn, Auburn, AL USA

[5] Univ Technol Sydney, Fac Engn & Informat Technol, Ctr Quantum Software & Informat QSI, Sydney, NSW, Australia

[6] Univ Calif Riverside, Dept Elect & Comp Engn, Riverside, CA USA

[7] Columbia Univ, Dept Chem, New York, NY USA

[8] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA USA

[9] Princeton Univ, Dept Phys, Princeton, NJ 08540 USA

来源：

SCIENCE | 2024年 / 383卷 / 6689期

基金：

欧洲研究理事会;

关键词：

ENTANGLEMENT ENTROPY; SYSTEMS; SIMULATIONS; COMPUTATION; SUPREMACY; DRIVEN; PHASES;

D O I：

10.1126/science.adh9932

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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. In two dimensions, we found mutual information that extends beyond nearest neighbors. Lastly, by coupling the system to auxiliaries emulating reservoirs with different chemical potentials, we explored transport in the quantum Heisenberg model. Our results establish engineered dissipation as a scalable alternative to unitary evolution for preparing entangled many-body states on noisy quantum processors.

引用

页码：1332 / 1337

页数：6

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