Zobrazeno 1 - 10
of 301
pro vyhledávání: '"Li Yaodong"'
The performance of quantum error correcting (QEC) codes are often studied under the assumption of spatio-temporally uniform error rates. On the other hand, experimental implementations almost always produce heterogeneous error rates, in either space
Externí odkaz:
http://arxiv.org/abs/2409.03325
Topologically-ordered phases are stable to local perturbations, and topological quantum error-correcting codes enjoy thresholds to local errors. We connect the two notions of stability by constructing classical statistical mechanics models for decodi
Externí odkaz:
http://arxiv.org/abs/2406.15757
Autor:
Kamakari, Hirsh, Sun, Jiace, Li, Yaodong, Thio, Jonathan J., Gujarati, Tanvi P., Fisher, Matthew P. A., Motta, Mario, Minnich, Austin J.
Quantum systems subject to random unitary evolution and measurements at random points in spacetime exhibit entanglement phase transitions which depend on the frequency of these measurements. Past work has experimentally observed entanglement phase tr
Externí odkaz:
http://arxiv.org/abs/2403.00938
Autor:
Li, Yaodong, Chong, Michelle S.
We employ reachability analysis in designing dynamic quantization schemes for the remote state estimation of linear systems over a finite date rate communication channel. The quantization region is dynamically updated at each transmission instant, wi
Externí odkaz:
http://arxiv.org/abs/2309.04006
Publikováno v:
Phys. Rev. Research 6, 043007 (2024)
Subsystem quantum error-correcting codes typically involve measuring a sequence of non-commuting parity check operators. They can sometimes exhibit greater fault-tolerance than conventional subspace codes, which use commuting checks. However, unlike
Externí odkaz:
http://arxiv.org/abs/2305.06389
Publikováno v:
Jixie chuandong, Vol 40, Pp 123-125 (2016)
In order to rationally allocate modification coefficients of a series gear mechanism,a optimization model based on multi-objective genetic algorithm is set up. In the model,the objectives are set as the center distance deviation and variation coeffic
Externí odkaz:
https://doaj.org/article/7658b7ed5445486c89fdcee5143eb2a1
Adaptive quantum circuits, in which unitary operations, measurements, and feedback are used to steer quantum many-body systems, provide an exciting opportunity to generate new dynamical steady states. We introduce an adaptive quantum dynamics with co
Externí odkaz:
http://arxiv.org/abs/2304.13198
Publikováno v:
Phys. Rev. B 107, 224303 (2023)
We study quantum circuits consisting of unitary gates, projective measurements, and control operations that steer the system towards a pure absorbing state. Two types of phase transition occur as the rate of these control operations is increased: a m
Externí odkaz:
http://arxiv.org/abs/2212.14026
Publikováno v:
Phys. Rev. Lett. 130, 230403 (2023)
Classical shadows are a powerful method for learning many properties of quantum states in a sample-efficient manner, by making use of randomized measurements. Here we study the sample complexity of learning the expectation value of Pauli operators vi
Externí odkaz:
http://arxiv.org/abs/2212.11963
Publikováno v:
Phys. Rev. Lett. 130, 220404 (2023)
We investigate the prospects of employing the linear cross-entropy to experimentally access measurement-induced phase transitions (MIPT) without requiring any postselection of quantum trajectories. For two random circuits that are identical in the bu
Externí odkaz:
http://arxiv.org/abs/2209.00609