Internal dynamics of multibarrier systems for pulsed quantum decay

被引：9

作者：

Garcia-Calderon, Gaston ^{[1
]}

Romo, Roberto ^{[2
]}

Villavicencio, Jorge ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

[2] Univ Autonoma Baja California, Fac Ciencias, Ensenada 22800, Baja California, Mexico

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

关键词：

probability; quantum theory; Schrodinger equation; OSCILLATIONS; EVOLUTION; TIME; WELL;

D O I：

10.1103/PhysRevA.79.052121

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An exact analytical approach is used to explore the dynamics of the decaying probability density and the probability current in multibarrier systems. We show that resonance state interference produces the appearance of breathing or bouncing modes in the dynamical behavior of the probability density along the internal region of the system. This dynamical process involves the reconstruction of the initial state and it is responsible for the pulsed features of the decay recently discussed for the survival probability in these systems.

引用

页数：8

共 23 条

[1] OBSERVATION OF CARRIER LOCALIZATION IN INTENTIONALLY DISORDERED GAAS/GAALAS SUPERLATTICES [J].

CHOMETTE, A ;

DEVEAUD, B ;

REGRENY, A ;

BASTARD, G .

PHYSICAL REVIEW LETTERS, 1986, 57 (12) :1464-1467

[2] The decay law can have an irregular character [J].

Exner, Pavel ;

Fraas, Martin .

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2007, 40 (06) :1333-1340

[3]

Ferry D., 1999, TRANSPORT NANOSTRUCT, V6

[4] On the Quantum theory of atomic nucleus [J].

Gamow, G. .

ZEITSCHRIFT FUR PHYSIK, 1928, 51 (3-4) :204-212

[5] Full-time nonexponential decay in double-barrier quantum structures [J].

Garcia-Calderon, Gaston ;

Villavicencio, Jorge .

PHYSICAL REVIEW A, 2006, 73 (06)

[6] Survival probability of multibarrier resonance systems:: Exact analytical approach [J].

Garcia-Calderon, Gaston ;

Romo, Roberto ;

VillavicencioO, Jorge .

PHYSICAL REVIEW B, 2007, 76 (03)

[7] Resonant-state expansions and the long-time behavior of quantum decay [J].

Garcia-Calderon, Gaston ;

Maldonado, Irene ;

Villavicencio, Jorge .

PHYSICAL REVIEW A, 2007, 76 (01)

[8] Transient effects and delay time in the dynamics of resonant tunneling [J].

GarciaCalderon, G ;

Rubio, A .

PHYSICAL REVIEW A, 1997, 55 (05) :3361-3370

[9] RESONANT SPECTRA AND THE TIME EVOLUTION OF THE SURVIVAL AND NONESCAPE PROBABILITIES [J].

GARCIACALDERON, G ;

MATEOS, JL ;

MOSHINSKY, M .

PHYSICAL REVIEW LETTERS, 1995, 74 (03) :337-340

[10] Quantum mechanics and radioactive disintegration [J].

Gurney, RW ;

Condon, EU .

PHYSICAL REVIEW, 1929, 33 (02) :127-140

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