Voltage-tunable group delay of an electron wave packet through a single quantum potential well

Yan Wang; Xi Chen; Yue Ban; Chunfang Li

doi:10.1016/j.physe.2008.08.059

Voltage-tunable group delay of an electron wave packet through a single quantum potential well

Yan Wang
, Xi Chen
, Yue Ban
, Chunfang Li^*

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

It is shown that the group delay of an electron wave packet through a potential well can be either negative or positive and is tunable by finite electric fields. The group delay depends not only on the width of potential well and the incident energy, but also on the electric field strength. It is also proved that the transmission time and reflection time for two propagation directions satisfy reciprocal relation, resulting from the time reversal invariance in quantum mechanism.

Original language	English
Pages (from-to)	399-402
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	41
Issue number	3
DOIs	https://doi.org/10.1016/j.physe.2008.08.059
Publication status	Published - Jan 2009
Externally published	Yes

Keywords

Electric fields
Group delay
Potential well
Reciprocal relation

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10.1016/j.physe.2008.08.059

Cite this

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abstract = "It is shown that the group delay of an electron wave packet through a potential well can be either negative or positive and is tunable by finite electric fields. The group delay depends not only on the width of potential well and the incident energy, but also on the electric field strength. It is also proved that the transmission time and reflection time for two propagation directions satisfy reciprocal relation, resulting from the time reversal invariance in quantum mechanism.",

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author = "Yan Wang and Xi Chen and Yue Ban and Chunfang Li",

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AU - Wang, Yan

AU - Chen, Xi

AU - Ban, Yue

AU - Li, Chunfang

PY - 2009/1

Y1 - 2009/1

N2 - It is shown that the group delay of an electron wave packet through a potential well can be either negative or positive and is tunable by finite electric fields. The group delay depends not only on the width of potential well and the incident energy, but also on the electric field strength. It is also proved that the transmission time and reflection time for two propagation directions satisfy reciprocal relation, resulting from the time reversal invariance in quantum mechanism.

AB - It is shown that the group delay of an electron wave packet through a potential well can be either negative or positive and is tunable by finite electric fields. The group delay depends not only on the width of potential well and the incident energy, but also on the electric field strength. It is also proved that the transmission time and reflection time for two propagation directions satisfy reciprocal relation, resulting from the time reversal invariance in quantum mechanism.

KW - Electric fields

KW - Group delay

KW - Potential well

KW - Reciprocal relation

UR - https://www.scopus.com/pages/publications/58149091473

U2 - 10.1016/j.physe.2008.08.059

DO - 10.1016/j.physe.2008.08.059

M3 - Article

AN - SCOPUS:58149091473

SN - 1386-9477

VL - 41

SP - 399

EP - 402

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 3

ER -

Voltage-tunable group delay of an electron wave packet through a single quantum potential well

Abstract

Keywords

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