Chaos-based Berry phase detector

Cheng Zhen Wang, Chen Di Han, Hong Ya Xu, Ying-Cheng Lai

Research output: Contribution to journalArticle

Abstract

The geometric or Berry phase, a characteristic of quasiparticles, is fundamental to the underlying quantum materials. The discoveries of new materials at a rapid pace nowadays call for efficient detection of the Berry phase. Utilizing the α-T3 lattice as a paradigm, we find that, in the Dirac electron optics regime, the semiclassical decay of the quasiparticles from a chaotic cavity can be effectively exploited for detecting the Berry phase. In particular, we demonstrate a one-to-one correspondence between the exponential decay rate and the geometric phase for the entire family of α-T3 materials. This chaos-based detection scheme represents an experimentally feasible way to assess the Berry phase and to distinguish the quasiparticles.

Original languageEnglish (US)
Article number144302/
JournalPhysical Review B
Volume99
Issue number14
DOIs
StatePublished - Apr 10 2019

Fingerprint

phase detectors
Chaos theory
chaos
Detectors
electron optics
Electron optics
decay rates
cavities
decay

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Chaos-based Berry phase detector. / Wang, Cheng Zhen; Han, Chen Di; Xu, Hong Ya; Lai, Ying-Cheng.

In: Physical Review B, Vol. 99, No. 14, 144302/, 10.04.2019.

Research output: Contribution to journalArticle

Wang, Cheng Zhen ; Han, Chen Di ; Xu, Hong Ya ; Lai, Ying-Cheng. / Chaos-based Berry phase detector. In: Physical Review B. 2019 ; Vol. 99, No. 14.
@article{d8cc98b340e94aeabf3d832de610138c,
title = "Chaos-based Berry phase detector",
abstract = "The geometric or Berry phase, a characteristic of quasiparticles, is fundamental to the underlying quantum materials. The discoveries of new materials at a rapid pace nowadays call for efficient detection of the Berry phase. Utilizing the α-T3 lattice as a paradigm, we find that, in the Dirac electron optics regime, the semiclassical decay of the quasiparticles from a chaotic cavity can be effectively exploited for detecting the Berry phase. In particular, we demonstrate a one-to-one correspondence between the exponential decay rate and the geometric phase for the entire family of α-T3 materials. This chaos-based detection scheme represents an experimentally feasible way to assess the Berry phase and to distinguish the quasiparticles.",
author = "Wang, {Cheng Zhen} and Han, {Chen Di} and Xu, {Hong Ya} and Ying-Cheng Lai",
year = "2019",
month = "4",
day = "10",
doi = "10.1103/PhysRevB.99.144302",
language = "English (US)",
volume = "99",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "14",

}

TY - JOUR

T1 - Chaos-based Berry phase detector

AU - Wang, Cheng Zhen

AU - Han, Chen Di

AU - Xu, Hong Ya

AU - Lai, Ying-Cheng

PY - 2019/4/10

Y1 - 2019/4/10

N2 - The geometric or Berry phase, a characteristic of quasiparticles, is fundamental to the underlying quantum materials. The discoveries of new materials at a rapid pace nowadays call for efficient detection of the Berry phase. Utilizing the α-T3 lattice as a paradigm, we find that, in the Dirac electron optics regime, the semiclassical decay of the quasiparticles from a chaotic cavity can be effectively exploited for detecting the Berry phase. In particular, we demonstrate a one-to-one correspondence between the exponential decay rate and the geometric phase for the entire family of α-T3 materials. This chaos-based detection scheme represents an experimentally feasible way to assess the Berry phase and to distinguish the quasiparticles.

AB - The geometric or Berry phase, a characteristic of quasiparticles, is fundamental to the underlying quantum materials. The discoveries of new materials at a rapid pace nowadays call for efficient detection of the Berry phase. Utilizing the α-T3 lattice as a paradigm, we find that, in the Dirac electron optics regime, the semiclassical decay of the quasiparticles from a chaotic cavity can be effectively exploited for detecting the Berry phase. In particular, we demonstrate a one-to-one correspondence between the exponential decay rate and the geometric phase for the entire family of α-T3 materials. This chaos-based detection scheme represents an experimentally feasible way to assess the Berry phase and to distinguish the quasiparticles.

UR - http://www.scopus.com/inward/record.url?scp=85065151475&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065151475&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.99.144302

DO - 10.1103/PhysRevB.99.144302

M3 - Article

VL - 99

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 14

M1 - 144302/

ER -