Alan Morningstar

All Publications

• Emergence of Fermi's Golden Rule. Physical review letters Micklitz, T., Morningstar, A., Altland, A., Huse, D. A. 2022; 129 (14): 140402

  Abstract

  Fermi's golden rule applies in the limit where an initial quantum state is weakly coupled to a continuum of other final states overlapping its energy. Here we investigate what happens away from this limit, where the set of final states is discrete, with a nonzero mean level spacing; this question arises in a number of recently investigated many-body systems. For different symmetry classes, we analytically and/or numerically calculate the universal crossovers in the average decay of the initial state as the level spacing is varied, with the golden rule emerging in the limit of a continuum. Among the corrections to the exponential decay of the initial state given by Fermi's golden rule is the appearance of the spectral form factor in the longtime regime for small but nonzero level spacing.

  View details for DOI 10.1103/PhysRevLett.129.140402

  View details for PubMedID 36240392

• Anomalous fluid flow in quantum systems New regimes of hydrodynamics are probed with synthetic quantum matter SCIENCE Morningstar, A., Bakr, W. 2022; 376 (6594): 699-700

  Abstract

  New regimes of hydrodynamics are probed with synthetic quantum matter.

  View details for DOI 10.1126/science.abn6376

  View details for Web of Science ID 000798488100029

  View details for PubMedID 35549425

• Avalanches and many-body resonances in many-body localized systems PHYSICAL REVIEW B Morningstar, A., Colmenarez, L., Khemani, V., Luitz, D. J., Huse, D. A. 2022; 105 (17)

  View details for DOI 10.1103/PhysRevB.105.174205

  View details for Web of Science ID 000832868500001

• Simulation of Quantum Many-Body Dynamics with Tensor Processing Units: Floquet Prethermalization PRX QUANTUM Morningstar, A., Hauru, M., Beall, J., Ganahl, M., Lewis, A. M., Khemani, V., Vidal, G. 2022; 3 (2)

  View details for DOI 10.1103/PRXQuantum.3.020331

  View details for Web of Science ID 000802835000001

• Many-body localization near the critical point PHYSICAL REVIEW B Morningstar, A., Huse, D. A., Imbrie, J. Z. 2020; 102 (12)

  View details for DOI 10.1103/PhysRevB.102.125134

  View details for Web of Science ID 000571392500001

• Kinetically constrained freezing transition in a dipole-conserving system PHYSICAL REVIEW B Morningstar, A., Khemani, V., Huse, D. A. 2020; 101 (21)

  View details for DOI 10.1103/PhysRevB.101.214205

  View details for Web of Science ID 000541410300001

• Subdiffusion and Heat Transport in a Tilted Two-Dimensional Fermi-Hubbard System PHYSICAL REVIEW X Guardado-Sanchez, E., Morningstar, A., Spar, B. M., Brown, P. T., Huse, D. A., Bakr, W. S. 2020; 10 (1)

  View details for DOI 10.1103/PhysRevX.10.011042

  View details for Web of Science ID 000515062500001

• Renormalization-group study of the many-body localization transition in one dimension PHYSICAL REVIEW B Morningstar, A., Huse, D. A. 2019; 99 (22)

  View details for DOI 10.1103/PhysRevB.99.224205

  View details for Web of Science ID 000473012000002