Professor Fabian Essler: Publications

How order melts after quantum quenches

(2019)

Authors:

Mario Collura, Fabian HL Essler

��=1��ީ`��ݳݴ��ˤ��ٽ��

(2019) 1151-1151

Authors:

ɽ�� o, ��u , Fabian HL Essler, Florian Lange, ̫�� ҄t, Holger Fehske

Self-consistent time-dependent harmonic approximation for the sine-Gordon model out of equilibrium

(2018)

Authors:

Yuri D van Nieuwkerk, Fabian HL Essler

Exotic criticality in the dimerized spin-1 $XXZ$ chain with single-ion anisotropy

SciPost Physics Stichting SciPost 5:6 (2018) 059

Authors:

Satoshi Ejima, Tomoki Yamaguchi, Fabian Essler, Florian Lange, Yukinori Ohta, Holger Fehske

Abstract:

We consider the dimerized spin-1 XXZ chain with single-ion anisotropy D. In absence of an explicit dimerization there are three phases: a large-$D$, an antiferromagnetically ordered and a Haldane phase. This phase structure persists up to a critical dimerization, above which the Haldane phase disappears. We show that for weak dimerization the phases are separated by Gaussian and Ising quantum phase transitions. One of the Ising transitions terminates in a critical point in the universality class of the dilute Ising model. We comment on the relevance of our results to experiments on quasi-one-dimensional anisotropic spin-1 quantum magnets.

Exotic criticality in the dimerized spin-1 $XXZ$ chain with single-ion anisotropy

(2018)

Authors:

Satoshi Ejima, Tomoki Yamaguchi, Fabian HL Essler, Florian Lange, Yukinori Ohta, Holger Fehske

91̽��