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pro vyhledávání: '"Flynn, Michael P."'
The spectral form factor (SFF) is a powerful diagnostic of random matrix behavior in quantum many-body systems. We introduce a family of random circuit ensembles whose SFFs can be computed $\textit{exactly}$. These ensembles describe the evolution of
Externí odkaz:
http://arxiv.org/abs/2410.08269
We consider systems of fermions evolved by non-interacting unitary circuits with correlated on-site potentials. When these potentials are drawn from the eigenvalue distribution of a circular random matrix ensemble, the spectral form factor (SFF) of t
Externí odkaz:
http://arxiv.org/abs/2410.07306
Autor:
Kristín Loftsdóttir
Publikováno v:
Nordic Journal of Migration Research, Vol 11, Iss 1 (2021)
Externí odkaz:
https://doaj.org/article/d13849372d754986becd22857f82f342
Publikováno v:
Physical Review B 110, 085105 (2024)
In the absence of parity and time-reversal symmetries, insulators can exhibit magnetoelectric responses, in which applied magnetic fields induce charge polarization and, conversely, applied electric fields induce magnetization. While there is a long
Externí odkaz:
http://arxiv.org/abs/2403.00918
We propose a formalism which defines chaos in both quantum and classical systems in an equivalent manner by means of adiabatic transformations. The complexity of adiabatic transformations which preserve classical time-averaged trajectories (quantum e
Externí odkaz:
http://arxiv.org/abs/2401.01927
Publikováno v:
Phys. Rev. Lett. 133, 060802, 2024
Shadow tomography aims to build a classical description of a quantum state from a sequence of simple random measurements. Physical observables are then reconstructed from the resulting classical shadow. Shadow protocols which use single-body random m
Externí odkaz:
http://arxiv.org/abs/2311.09291
Core-sets refer to subsets of data that maximize some function that is commonly a diversity or group requirement. These subsets are used in place of the original data to accomplish a given task with comparable or even enhanced performance if biases a
Externí odkaz:
http://arxiv.org/abs/2308.05878
Local random circuits scramble efficiently and accordingly have a range of applications in quantum information and quantum dynamics. With a global $U(1)$ charge however, the scrambling ability is reduced; for example, such random circuits do not gene
Externí odkaz:
http://arxiv.org/abs/2306.01035
Autor:
Gao, Bin, Chen, Tong, Wu, Xiao-Chuan, Flynn, Michael, Duan, Chunruo, Chen, Lebing, Huang, Chien-Lung, Liebman, Jesse, Li, Shuyi, Ye, Feng, Stone, Matthew B., Podlesnyak, Andrey, Abernathy, Douglas L., Adroja, Devashibhai T., Le, Manh Duc, Huang, Qingzhen, Nevidomskyy, Andriy H., Morosan, Emilia, Balents, Leon, Dai, Pengcheng
Magnetic order in most materials occurs when magnetic ions with finite moments in a crystalline lattice arrange in a particular pattern below the ordering temperature determined by exchange interactions between the ions. However, when the crystal ele
Externí odkaz:
http://arxiv.org/abs/2303.10241
Momentum space entanglement entropy probes quantum correlations in interacting fermionic phases. It is very sensitive to interactions, obeying volume-law scaling in general, while vanishing in the Fermi gas. We show that the R\'enyi entropy in moment
Externí odkaz:
http://arxiv.org/abs/2203.08154