Collapses-revivals phenomena induced by weak magnetic flux in diamond chain

Na Na Chang; Wen Quan Jing; Yu Zhang; Ai Xia Zhang; Ju Kui Xue; Su Peng Kou

doi:10.1088/1674-1056/ab6087

Collapses-revivals phenomena induced by weak magnetic flux in diamond chain

Na Na Chang^*, Wen Quan Jing, Yu Zhang, Ai Xia Zhang, Ju Kui Xue, Su Peng Kou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate the quantum dynamical behaviors of bosons in a diamond chain with weak magnetic flux (WMF), including Landau-Zener tunnelling, Bloch oscillations, localization phenomenon, and collapses-revivals phenomena. We observed that collapses-revivals phenomena can occur in diamond chain with WMF and cannot exist in the strong magnetic flux case as the previous study (Chang N N and Xue J K, 2018, Chin. Phys. B 27 105203). Induced by WMF, the energy band for the system varies from gapless to gapped structure. The position of the extrema of probability amplitude for ground state can also be altered by WMF within a single diamond plaquette. As a consequence, the transitions between different dynamical behaviors of bosons in diamond chain can be manipulated by WMF, depending on its initial configurations.

Original language	English
Article number	010306
Journal	Chinese Physics B
Volume	29
Issue number	1
DOIs	https://doi.org/10.1088/1674-1056/ab6087
Publication status	Published - 2020
Externally published	Yes

Keywords

Bloch oscillations
collapses-revivals phenomena
flat band
Landau-Zener tunneling
localization phenomenon

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10.1088/1674-1056/ab6087

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@article{b30178c6e6da40f7ac859b32b8de4093,

title = "Collapses-revivals phenomena induced by weak magnetic flux in diamond chain",

abstract = "We investigate the quantum dynamical behaviors of bosons in a diamond chain with weak magnetic flux (WMF), including Landau-Zener tunnelling, Bloch oscillations, localization phenomenon, and collapses-revivals phenomena. We observed that collapses-revivals phenomena can occur in diamond chain with WMF and cannot exist in the strong magnetic flux case as the previous study (Chang N N and Xue J K, 2018, Chin. Phys. B 27 105203). Induced by WMF, the energy band for the system varies from gapless to gapped structure. The position of the extrema of probability amplitude for ground state can also be altered by WMF within a single diamond plaquette. As a consequence, the transitions between different dynamical behaviors of bosons in diamond chain can be manipulated by WMF, depending on its initial configurations.",

keywords = "Bloch oscillations, collapses-revivals phenomena, flat band, Landau-Zener tunneling, localization phenomenon",

author = "Chang, {Na Na} and Jing, {Wen Quan} and Yu Zhang and Zhang, {Ai Xia} and Xue, {Ju Kui} and Kou, {Su Peng}",

note = "Publisher Copyright: {\textcopyright} 2020 Chinese Physical Society and IOP Publishing Ltd.",

year = "2020",

doi = "10.1088/1674-1056/ab6087",

language = "English",

volume = "29",

journal = "Chinese Physics B",

issn = "1674-1056",

publisher = "IOP Publishing Ltd.",

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}

TY - JOUR

T1 - Collapses-revivals phenomena induced by weak magnetic flux in diamond chain

AU - Chang, Na Na

AU - Jing, Wen Quan

AU - Zhang, Yu

AU - Zhang, Ai Xia

AU - Xue, Ju Kui

AU - Kou, Su Peng

PY - 2020

Y1 - 2020

N2 - We investigate the quantum dynamical behaviors of bosons in a diamond chain with weak magnetic flux (WMF), including Landau-Zener tunnelling, Bloch oscillations, localization phenomenon, and collapses-revivals phenomena. We observed that collapses-revivals phenomena can occur in diamond chain with WMF and cannot exist in the strong magnetic flux case as the previous study (Chang N N and Xue J K, 2018, Chin. Phys. B 27 105203). Induced by WMF, the energy band for the system varies from gapless to gapped structure. The position of the extrema of probability amplitude for ground state can also be altered by WMF within a single diamond plaquette. As a consequence, the transitions between different dynamical behaviors of bosons in diamond chain can be manipulated by WMF, depending on its initial configurations.

AB - We investigate the quantum dynamical behaviors of bosons in a diamond chain with weak magnetic flux (WMF), including Landau-Zener tunnelling, Bloch oscillations, localization phenomenon, and collapses-revivals phenomena. We observed that collapses-revivals phenomena can occur in diamond chain with WMF and cannot exist in the strong magnetic flux case as the previous study (Chang N N and Xue J K, 2018, Chin. Phys. B 27 105203). Induced by WMF, the energy band for the system varies from gapless to gapped structure. The position of the extrema of probability amplitude for ground state can also be altered by WMF within a single diamond plaquette. As a consequence, the transitions between different dynamical behaviors of bosons in diamond chain can be manipulated by WMF, depending on its initial configurations.

KW - Bloch oscillations

KW - collapses-revivals phenomena

KW - flat band

KW - Landau-Zener tunneling

KW - localization phenomenon

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U2 - 10.1088/1674-1056/ab6087

DO - 10.1088/1674-1056/ab6087

M3 - Article

AN - SCOPUS:85079414174

SN - 1674-1056

VL - 29

JO - Chinese Physics B

JF - Chinese Physics B

IS - 1

M1 - 010306

ER -

Collapses-revivals phenomena induced by weak magnetic flux in diamond chain

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Keywords

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