Entanglement entropy of excited states
We study the entanglement entropy of a block of contiguous spins in excited states of spin
chains. We consider the XY model in a transverse field and the XXZ Heisenberg spin chain …
chains. We consider the XY model in a transverse field and the XXZ Heisenberg spin chain …
Current operators in integrable spin chains: lessons from long range deformations
B Pozsgay - SciPost Physics, 2020 - scipost.org
We consider the finite volume mean values of current operators in integrable spin chains
with local interactions, and provide an alternative derivation of the exact result found recently …
with local interactions, and provide an alternative derivation of the exact result found recently …
Strong zero modes in integrable quantum circuits
It is a classic result that certain interacting integrable spin chains host robust edge modes
known as strong zero modes (SZMs). In this Letter, we extend this result to the Floquet …
known as strong zero modes (SZMs). In this Letter, we extend this result to the Floquet …
Heisenberg XXX model with general boundaries: eigenvectors from algebraic Bethe ansatz
We propose a generalization of the algebraic Bethe ansatz to obtain the eigenvectors of the
Heisenberg spin chain with general boundaries associated to the eigenvalues and the …
Heisenberg spin chain with general boundaries associated to the eigenvalues and the …
Antiperiodic spin-1/2 XXZ quantum chains by separation of variables: Complete spectrum and form factors
G Niccoli - Nuclear Physics B, 2013 - Elsevier
In this paper we consider the spin-1/2 highest weight representations for the 6-vertex Yang–
Baxter algebra on a finite lattice and analyze the integrable quantum models associated to …
Baxter algebra on a finite lattice and analyze the integrable quantum models associated to …
[HTML][HTML] Non-analytic behavior of the Loschmidt echo in XXZ spin chains: Exact results
We address the computation of the Loschmidt echo in interacting integrable spin chains after
a quantum quench. We focus on the massless regime of the XXZ spin-1/2 chain and present …
a quantum quench. We focus on the massless regime of the XXZ spin-1/2 chain and present …
From the quantum transfer matrix to the quench action: the Loschmidt echo in XXZ Heisenberg spin chains
We consider the computation of the Loschmidt echo after quantum quenches in the
interacting XXZ Heisenberg spin chain both for real and imaginary times. We study two-site …
interacting XXZ Heisenberg spin chain both for real and imaginary times. We study two-site …
The half-infinite XXZ chain in Onsagerʼs approach
The half-infinite XXZ open spin chain with general integrable boundary conditions is
considered within the recently developed 'Onsagerʼs approach'. Inspired by the finite size …
considered within the recently developed 'Onsagerʼs approach'. Inspired by the finite size …
Non-diagonal open spin-1/2 XXZ quantum chains by separation of variables: complete spectrum and matrix elements of some quasi-local operators
G Niccoli - Journal of statistical mechanics: theory and …, 2012 - iopscience.iop.org
The integrable quantum models, associated with the transfer matrices of the 6-vertex
reflection algebra for spin-1/2 representations, are studied in this paper. In the framework of …
reflection algebra for spin-1/2 representations, are studied in this paper. In the framework of …
Construction of a coordinate Bethe ansatz for the asymmetric simple exclusion process with open boundaries
D Simon - Journal of Statistical Mechanics: Theory and …, 2009 - iopscience.iop.org
The asymmetric simple exclusion process with open boundaries, which is a very simple
model of out-of-equilibrium statistical physics, is known to be integrable. In particular, its …
model of out-of-equilibrium statistical physics, is known to be integrable. In particular, its …