Zobrazeno 1 - 10
of 10
pro vyhledávání: '"McCulloch, Ewan"'
Steady-state currents generically occur both in systems with continuous translation invariance and in nonequilibrium settings with particle drift. In either case, thermal fluctuations advected by the current act as a source of noise for slower hydrod
Externí odkaz:
http://arxiv.org/abs/2407.03412
We construct an ensemble of two-dimensional nonintegrable quantum circuits that are chaotic but have a conserved particle current, and thus a finite Drude weight. The long-wavelength hydrodynamics of such systems is given by the incompressible Navier
Externí odkaz:
http://arxiv.org/abs/2405.13892
Publikováno v:
Proceedings of the National Academy of Sciences, 121 (50) e2403327121 (2024)
Dirac fluids - interacting systems obeying particle-hole symmetry and Lorentz invariance - are among the simplest hydrodynamic systems; they have also been studied as effective descriptions of transport in strongly interacting Dirac semimetals. Direc
Externí odkaz:
http://arxiv.org/abs/2401.05494
Autor:
Wienand, Julian F., Karch, Simon, Impertro, Alexander, Schweizer, Christian, McCulloch, Ewan, Vasseur, Romain, Gopalakrishnan, Sarang, Aidelsburger, Monika, Bloch, Immanuel
A fundamental principle of chaotic quantum dynamics is that local subsystems eventually approach a thermal equilibrium state. Large subsystems thermalize slower: their approach to equilibrium is limited by the hydrodynamic build-up of large-scale flu
Externí odkaz:
http://arxiv.org/abs/2306.11457
We present a scalable protocol for measuring full counting statistics (FCS) in experiments or tensor-network simulations. In this method, an ancilla in the middle of the system acts as a turnstile, with its phase keeping track of the time-integrated
Externí odkaz:
http://arxiv.org/abs/2305.15464
Publikováno v:
Phys. Rev. Lett. 131, 210402 (2023)
We investigate the full counting statistics of charge transport in $U(1)$-symmetric random unitary circuits. We consider an initial mixed state prepared with a chemical potential imbalance between the left and right halves of the system, and study th
Externí odkaz:
http://arxiv.org/abs/2302.01355
Publikováno v:
J. Phys. A: Math. Theor. 55 (2022) 274007
The spread and scrambling of quantum information is a topic of considerable current interest. Numerous studies suggest that quantum information evolves according to hydrodynamical equations of motion, even though it is a starkly different quantity to
Externí odkaz:
http://arxiv.org/abs/2111.08727
Autor:
McCulloch, Ewan
Scrambling and thermalisation are topics of intense study in both condensed matter and high energy physics. Random unitary dynamics form a simple testing-ground for our theoretical understanding of these processes. In this work, we derive exact expre
Externí odkaz:
http://arxiv.org/abs/2110.15151
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