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Dissipative flow equations

Lorenzo RossoPolytechnic University of TurinFernando IeminiAbdus Salam International Centre for Theoretical PhysicsMarco SchiròCollège de FranceLeonardo MazzaUniversity of Paris-Saclay

SciPost Physicsjournal2020en

ABI

Annotatsiya

We generalize the theory of flow equations to open quantum systems focusing on Lindblad master equations. We introduce and discuss three different generators of the flow that transform a linear non-Hermitian operator into a diagonal one. We first test our dissipative flow equations on a generic matrix and on a physical problem with a driven-dissipative single fermionic mode. We then move to problems with many fermionic modes and discuss the interplay between coherent (disordered) dynamics and localized losses. Our method can also be applied to non-Hermitian Hamiltonians.

Mavzular

Quantum Mechanics and Non-Hermitian Physics Quantum chaos and dynamical systems Quantum many-body systems

Identifikatorlar

DOI: 10.21468/scipostphys.9.6.091

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