Many-body interference in bosonic dynamics
نویسندگان
چکیده
منابع مشابه
Coherent backscattering in Fock space: a signature of quantum many-body interference in interacting bosonic systems.
We predict a generic signature of quantum interference in many-body bosonic systems resulting in a coherent enhancement of the average return probability in Fock space. This enhancement is robust with respect to variations of external parameters even though it represents a dynamical manifestation of the delicate superposition principle in Fock space. It is a genuine quantum many-body effect tha...
متن کاملSupplementary material for “Coherent Backscattering in Fock Space: a Signature of Quantum Many-Body Interference in Interacting Bosonic Systems”
The semiclassical propagator cannot be directly obtained in Fock state representation, since the Fock states form a discrete basis rather than a continuous one as required by the path integral formalism. To solve this problem, we first derive a semiclassical propagator in quadrature representation and then project the result on Fock states. The quadrature eigenstates |q 〉 ≡ |q1, . . . , qL 〉 an...
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Theoretical approaches to nonequilibrium many-body dynamics generally rest upon an adiabatic assumption, whereby the true dynamics is represented as a sequence of equilibrium states. Going beyond this simple approximation is a notoriously difficult problem. For the case of classical Brownian many-body dynamics, we present a simulation method that allows us to isolate and precisely evaluate supe...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2020
ISSN: 1367-2630
DOI: 10.1088/1367-2630/abb7a3