Topological edge modes and phase transitions in a critical fermionic chain with long-range interactions

WH Zhong, WL Li, YC Chen, XJ Yu - Physical Review A, 2024 - APS
Long-range interactions can fundamentally alter properties in gapped topological phases
such as emergent massive edge modes. However, recent research has shifted attention to …

Resilience of quantum spin fluctuations against Dzyaloshinskii–Moriya interaction

S Mahdavifar, M Salehpour, H Cheraghi… - Scientific Reports, 2024 - nature.com
In low-dimensional systems, the lack of structural inversion symmetry combined with the spin-
orbit coupling gives rise to an anisotropic antisymmetric superexchange known as the …

The impact of different unravelings in a monitored system of free fermions

G Piccitto, D Rossini, A Russomanno - The European Physical Journal B, 2024 - Springer
We consider a free-fermion chain undergoing dephasing, described by two different random-
measurement protocols (unravelings): a quantum-state-diffusion and a quantum-jump one …

Localization and multifractal properties of the long-range Kitaev chain in the presence of an Aubry-André-Harper modulation

J Fraxanet, U Bhattacharya, T Grass, M Lewenstein… - Physical Review B, 2022 - APS
In the presence of quasiperiodic potentials, the celebrated Kitaev chain presents an
intriguing phase diagram with ergodic, localized, and multifractal states. In this work, we …

Competition of long-range interactions and noise at a ramped quench dynamical quantum phase transition: The case of the long-range pairing Kitaev chain

R Baghran, R Jafari, A Langari - Physical Review B, 2024 - APS
The nonequilibrium dynamics of long-range pairing Kitaev model with noiseless/noisy linear
time dependent chemical potential, is investigated in the framework of dynamical quantum …

Correlations, long-range entanglement, and dynamics in long-range Kitaev chains

G Francica, L Dell'Anna - Physical Review B, 2022 - APS
Long-range interactions exhibit surprising features which have been less explored so far.
Here, studying a one-dimensional fermionic chain with long-range hop** and pairing, we …

Quantum quenches in driven-dissipative quadratic fermionic systems with parity-time symmetry

E Starchl, LM Sieberer - Physical Review Research, 2024 - APS
We study the quench dynamics of noninteracting fermionic quantum many-body systems
that are subjected to Markovian drive and dissipation and are described by a quadratic …

Controlling measurement induced phase transitions with tunable detector coupling

R Nehra, A Romito, D Meidan - arxiv preprint arxiv:2404.07918, 2024 - arxiv.org
We study the evolution of a quantum many-body system driven by two competing
measurements, which induces a topological entanglement transition between two distinct …

Disconnected entanglement entropy as a marker of edge modes in a periodically driven Kitaev chain

S Mondal, D Sen, A Dutta - Journal of Physics: Condensed …, 2022 - iopscience.iop.org
We study the disconnected entanglement entropy (DEE) of a Kitaev chain in which the
chemical potential is periodically modulated with δ-function pulses within the framework of …

Entanglement signatures of a percolating quantum system

S Pachhal, A Agarwala - Physical Review B, 2024 - APS
Entanglement measures have emerged as one of the versatile probes to diagnose quantum
phases and their transitions. Universal features in them expand their applicability to a range …