Fluctuation-Induced Quantum Zeno Effect

Abstract

An isolated quantum gas with a localized loss features a non-monotonic behavior of the particle loss rate as an incarnation of the quantum Zeno effect, as recently shown in experiments with cold atomic gases. While this effect can be understood in terms of local, microscopic physics, we show that novel many-body effects emerge when non-linear gapless quantum fluctuations become important. To this end, we investigate the effect of a local dissipative impurity on a one-dimensional gas of interacting fermions. We show that the escape probability for modes close to the Fermi energy vanishes for an arbitrary strength of the dissipation. In addition, transport properties across the impurity are qualitatively modified, similarly to the Kane-Fisher barrier problem. We substantiate these findings using both a microscopic model of spinless fermions and a Luttinger liquid description.

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Cited by in corpus (66)

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• Quantum Impurity Models coupled to Markovian and Non Markovian Baths
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• Diagrammatic Monte Carlo for Dissipative Quantum Impurity Models
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• Stability analysis and attractor dynamics of 3D dark solitons with localized dissipation
• Kondo-Zeno crossover in the dynamics of a monitored quantum dot
• Simulating Lindbladian evolution with non-abelian symmetries: Ballistic front propagation in the $SU(2)$ Hubbard model with a localized loss
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• Zeno physics of the Ising chain with symmetry-breaking boundary dephasing
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• A Luttinger Liquid coupled to Ohmic-class environments
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• Universal scaling at a pre-thermal dark state
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• Opening Krylov space to access all-time dynamics via dynamical symmetries
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• Random walk through a fertile site
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• Universality in Non-Equilibrium Quantum Systems
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• Quantum Point Contact with Local Two-body Loss
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