Larmor clock for tunneling times

被引：12

作者：

Krenzlin, HM ^{[1
]}

Budczies, J ^{[1
]}

Kehr, KW ^{[1
]}

机构：

[1] UNIV COLOGNE, INST THEORET PHYS, D-50937 COLOGNE, GERMANY

来源：

PHYSICAL REVIEW A | 1996年 / 53卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.53.3749

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The Larmor clock which was proposed to determine tunneling times of particles with spin through barriers is studied. Tunneling of wave packets is numerically derived from the time-dependent Schrodinger-Pauli equation. The Larmor clock often does not proceed unidirectionally in time. The asymptotic readings are well defined. For wide wave packets the asymptotic Larmor times agree with the stationary-state predictions; deviations are seen for narrow wave packets. Buttiker's dwell time is investigated and its connection with the Larmor times is confirmed in the case of wave packets.

引用

页码：3749 / 3755

页数：7

共 26 条

[1]

BAZ AI, 1967, SOV J NUCL PHYS+, V5, P161

[2]

BAZ AI, 1967, SOV J NUCL PHYS+, V4, P182

[3] SYSTEMATIC-APPROACH TO DEFINE AND CLASSIFY QUANTUM TRANSMISSION AND REFLECTION TIMES [J].

BROUARD, S ;

SALA, R ;

MUGA, JG .

PHYSICAL REVIEW A, 1994, 49 (06) :4312-4325

[4] TRANSMISSION, REFLECTION, AND INTERFERENCE CONTRIBUTIONS TO THE TUNNELING DWELL TIME [J].

BROUARD, S ;

SALA, R ;

MUGA, JG .

EUROPHYSICS LETTERS, 1993, 22 (03) :159-165

[5] LARMOR PRECESSION AND THE TRAVERSAL TIME FOR TUNNELING [J].

BUTTIKER, M .

PHYSICAL REVIEW B, 1983, 27 (10) :6178-6188

[6]

BUTTIKER M, 1990, ELECT PROPERTIES MUL

[7] EXACTLY SOLUBLE 2-DIMENSIONAL ELECTRON-GAS IN A MAGNETIC-FIELD BARRIER [J].

CALVO, M .

PHYSICAL REVIEW B, 1993, 48 (04) :2365-2369

[8]

COHENTANNOUDJI C, 1977, QUANTUM MECHANICS, V1

[9] Optical Larmor clock: Measurement of the photonic tunneling time [J].

Deutsch, M ;

Golub, JE .

PHYSICAL REVIEW A, 1996, 53 (01) :434-439

[10] LARMOR CLOCK REEXAMINED [J].

FALCK, JP ;

HAUGE, EH .

PHYSICAL REVIEW B, 1988, 38 (05) :3287-3297

← 1 2 3 →