Work

Disorder-induced order in quantum XY chains

Year: 2010

Type: article

Abstract: We observe signatures of disorder-induced order in one-dimensional $\mathit{XY}$ spin chains with an external site-dependent uniaxial random field within the $\mathit{XY}$ plane. We numerically investigate signatures of a quantum phase transition at $T=0$, in particular, an upsurge of the magnetization in the direction orthogonal to the external magnetic field and the scaling of the block entropy with the amplitude of this field. Also, we discuss possible realizations of this effect in ultracold atomic experiments.

Source: Physical Review A

DOI: 10.1103/physreva.82.013630

Authors: A. Niederberger, M. M. Rams, J. Dziarmaga, F. M. Cucchietti, J. Wehr, M. Lewenstein

Institutions: Institute of Photonic Sciences, Jagiellonian University, Los Alamos National Laboratory, University of Arizona, Institució Catalana de Recerca i Estudis Avançats

Language: Latvian

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2027675394

FWCI: 1.546

Cites: 52

Cited by: 35

Related to: 10