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Dynamics of charge imbalance resolved negativity after a global quench in free scalar field theory
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Dynamics of charge imbalance resolved negativity after a global quench in free scalar field theory
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Journal Article
Dynamics of charge imbalance resolved negativity after a global quench in free scalar field theory
2022
Overview
A
bstract
In this paper, we consider the time evolution of charge imbalance resolved negativity after a global quench in the 1+1 dimensional complex Klein-Gordon theory. We focus on two types of global quenches which are called boundary state quench and mass quench respectively. We first study the boundary state quench where the post-quench dynamic is governed by a massless Hamiltonian. In this case, the temporal evolution of charged imbalance resolved negativity can be obtained first by evaluating the correlators of the fluxed twist field in the upper half plane and then applying Fourier transformation. We test our analytical formulas in the underlying lattice model numerically. We also study the mass quench in the complex harmonic chain where the system evolves according to a massive Hamiltonian after the quench. We argue that our results can be understood in the framework of quasi-particle picture.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V,SpringerOpen
