Inverse problem for the Landau-Zener effect

被引：23

作者：

Garanin, DA ^{[1
]}

Schilling, R ^{[1
]}

机构：

[1] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

来源：

EUROPHYSICS LETTERS | 2002年 / 59卷 / 01期

关键词：

D O I：

10.1209/epl/i2002-00152-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the inverse Landau-Zener problem which consists in finding the energy sweep functions W (t) = epsilon(1) (t) - epsilon(2) (t) resulting in the required time dependences of the level populations for a two-level system crossing the resonance one or more times during the sweep. We find sweep functions of particular forms that let manipulate the system in a required way, including complete switching from the state 1 to the state 2 and preparing the system at the exact ground and excited states at resonance.

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页码：7 / 13

页数：7

相关论文

共 9 条

[1] STUECKELBERG CLOSE-CURVE-CROSSING PHASES [J].

CROTHERS, DSF ;

HUGHES, JG .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1977, 10 (15) :L557-L560

[2] Macroscopic quantum tunnelling and hysteresis loops of mesoscopic magnets [J].

Dobrovitski, VV ;

Zvezdin, AK .

EUROPHYSICS LETTERS, 1997, 38 (05) :377-382

[3] TOPOLOGICALLY QUENCHED TUNNEL SPLITTING IN SPIN SYSTEMS WITHOUT KRAMERS DEGENERACY [J].

GARG, A .

EUROPHYSICS LETTERS, 1993, 22 (03) :205-210

[4]

Landau L., 1965, QUANTUM MECH

[5]

Landau L. D., 1932, PHYS Z SOWJETUNION, V2, P46, DOI DOI 10.1098/RSPA.1932.0165

[6] SUPPRESSION OF TUNNELING BY INTERFERENCE IN HALF-INTEGER-SPIN PARTICLES [J].

LOSS, D ;

DIVINCENZO, DP ;

GRINSTEIN, G .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3232-3235

[7] DESTRUCTIVE QUANTUM INTERFERENCE IN SPIN TUNNELING PROBLEMS [J].

VONDELFT, J ;

HENLEY, CL .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3236-3239

[8] Quantum phase interference and parity effects in magnetic molecular clusters [J].

Wernsdorfer, W ;

Sessoli, R .

SCIENCE, 1999, 284 (5411) :133-135

[9] Non-adiabatic crossing of energy levels [J].

Zener, C .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1932, 137 (833) :696-702