# Pulse and quench induced dynamical phase transition in a chiral multiferroic spin chain

@article{Azimi2016PulseAQ, title={Pulse and quench induced dynamical phase transition in a chiral multiferroic spin chain}, author={Maryam Azimi and Michael Sekania and S. K. Mishra and Levan Chotorlishvili and Z. Toklikishvili and Jamal Berakdar}, journal={Physical Review B}, year={2016}, volume={94}, pages={064423} }

Quantum dynamics of magnetic order in a chiral multiferroic chain is studied. We consider two different scenarios: ultrashort terahertz excitations or a sudden electric field quench. Performing analytical and numerical exact diagonalization calculations, we trace the pulse induced spin dynamics and extract quantities that are relevant to quantum information processing. In particular, we analyze the dynamics of the system chirality, the von Neumann entropy, and the pairwise and many-body…

## Figures from this paper

## 21 Citations

Dynamical quantum phase transitions in a mesoscopic superconducting system

- Physics
- 2021

We inspect signatures of dynamical quantum phase transitions driven by two types of quenches acting on a correlated quantum dot embedded between superconducting and metallic reservoirs. Under…

Exact dynamics of concurrence-based entanglement in a system of four spin-1/2 particles on a triangular ladder structure

- Physics
- 2019

Motivated by the ability of triangular spin ladders to implement quantum information processing, we propose a type of such systems whose Hamiltonian includes the XX Heisenberg interaction on the…

Entanglement balance of quantum
(e,2e)
scattering processes

- PhysicsPhysical Review A
- 2019

The theory of quantum information constitutes the functional value of the quantum entanglement, i.e., quantum entanglement is essential for high fidelity of quantum protocols, while fundamental…

Quantum teleportation by utilizing helical spin chains for sharing entanglement

- Computer Science, PhysicsQuantum Inf. Process.
- 2021

It is shown that the kicking scheme in conjugation with the optimized parameters enhances the fidelity of teleportation even in the presence of impurities and/or decoherence.

Experimental Determination of Dynamical Lee-Yang Zeros.

- Physics, MedicinePhysical review letters
- 2017

The dynamical Lee-Yang zeros of a stochastic process involving Andreev tunneling between a normal-state island and two superconducting leads are extracted from measurements of the dynamical activity along a trajectory and the large-deviation statistics of the activity are predicted.

Spin-Resolved Quantum Scars in Confined Spin-Coupled Two-Dimensional Electron Gas

- MedicineNanomaterials
- 2021

It is shown that spin-dependent scarring occurs in a spin-coupled electronic system subjected to a confining potential, an external magnetic field, and a Rashba-type spin-orbit coupling.

Experimental observation of dynamical Lee-Yang zeros

- Physics
- 2017

Statistical physics provides the concepts and methods to explain the phase behavior of interacting many-body systems. Investigations of Lee-Yang zeros - complex singularities of the free energy in…

Magnetization Reversal Time for Ferromagnetic and Antiferromagnetic Chains in the Heisenberg Model

- Materials ScienceIEEE Magnetics Letters
- 2019

A new analytical method for the study of the magnetic properties of finite-length monatomic and biatomic chains with uniaxial magnetic anisotropy in the framework of the Heisenberg model is…

Energy Flux Effect in the One-Dimensional Spin-1/2 XX Model of Magnetoelectric. Lagrange Multiplier Method

- Ukrainian Journal of Physics
- 2021

The Lagrange multiplier method is applied to study a nonequilibrium steady state with energy flux in the one-dimensional spin1 2 XX model of a magnetoelectric with the Katsura–Nagaosa– Balatsky…

Effects of the Dzyaloshinsky-Moriya interaction on nonequilibrium thermodynamics in the XY chain in a transverse field.

- Mathematics, PhysicsPhysical review. E
- 2018

Depending on the anisotropy of the system and the temperature, the DM interaction may have different impacts on the nonequilibrium thermodynamics, and the critical line induced by theDM interaction can be revealed via the properties of theNonequ equilibrium thermodynamics.