Exact dynamics in dual-unitary quantum circuits
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DOI: 10.1103/physrevb.101.094304
Abstract: We consider the class of dual-unitary quantum circuits in 1 + 1 dimensions and introduce a notion of “solvable” matrix product states (MPSs), defined by a specific condition which allows us to tackle their time… read more here.
Keywords: quantum circuits; unitary quantum; dual unitary; infinite temperature ... See more keywords
Universal spin dynamics in infinite-temperature one-dimensional quantum magnets
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DOI: 10.1103/physrevb.101.121106
Abstract: Author(s): Dupont, M; Moore, JE | Abstract: © 2020 American Physical Society. We address the nature of spin dynamics in various integrable and nonintegrable, isotropic and anisotropic quantum spin-S chains, beyond the paradigmatic S=1/2 Heisenberg… read more here.
Keywords: model; spin; spin dynamics; infinite temperature ... See more keywords
Noise-Driven Universal Dynamics towards an Infinite Temperature State.
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DOI: 10.1103/physrevlett.124.130602
Abstract: Dynamical universality is the observation that the dynamical properties of different systems might exhibit universal behavior that are independent of the system details. In this Letter, we study the longtime dynamics of a one-dimensional noisy… read more here.
Keywords: temperature state; infinite temperature; state; dynamics towards ... See more keywords
Phenomenology of Spectral Functions in Disordered Spin Chains at Infinite Temperature.
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DOI: 10.1103/physrevlett.127.230603
Abstract: Studies of disordered spin chains have recently experienced a renewed interest, inspired by the question to which extent the exact numerical calculations comply with the existence of a many-body localization phase transition. For the paradigmatic… read more here.
Keywords: phenomenology spectral; spin; disordered spin; infinite temperature ... See more keywords