Spin-system radio-frequency superradiation: A phenomenological study and comparison with numeric simulations

被引：14

作者：

Davis, CL ^{[1
]}

Henner, VK

Tchernatinsky, AV

Kaganov, IV

机构：

[1] Univ Louisville, Dept Phys, Louisville, KY 40292 USA

[2] Perm State Univ, Dept Theoret Phys, Perm 614600, Russia

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.72.054406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss the coherent behavior of a polarized, nuclear or electron, spin system for which the magnetic dipole radiation emitted in the radio-frequency region, has approximately quadratic dependence on the number of spins. An effective method of describing these phenomena is provided by computer simulation of a microscopic model of the spin system. Important aspects of this numeric simulation are described, together with a comparison with the theoretical predictions. The behavior of the transverse component of the magnetic moment, M+(t), in super-radiant conditions is studied. In addition, the role of dipole-dipole interactions in super-radiation phenomena is investigated in detail. It is shown that some important features of super-radiation cannot be described with the Bloch equations.

引用

页数：10

共 24 条

[1]

Abragam A., 1982, Nuclear Magnetism Order and Disorder

[2]

Allen L., 1975, OPTICAL RESONANCE 2

[3]

Andreev A. V., 1980, Soviet Physics - Uspekhi, V23, P493, DOI 10.1070/PU1980v023n08ABEH005024

[4]

Andreev A. V., 1993, Cooperative Effects in Optics: Superradiance and Phase Transitions

[5] COMPUTER-SIMULATION OF COHERENT EFFECTS IN POLARIZED SPIN SYSTEMS [J].

BELOZEROVA, TS ;

HENNER, VK ;

YUKALOV, VI .

COMPUTER PHYSICS COMMUNICATIONS, 1992, 73 (1-3) :151-160

[6] Role of inhomogeneous widening in radiofrequency coherent superradiation from highly polarized spin systems [J].

Belozerova, TS ;

Davis, CL ;

Henner, VK .

PHYSICAL REVIEW B, 1998, 58 (06) :3111-3116

[7] COHERENT EFFECTS IN DIPOLE SPIN-SYSTEMS [J].

BELOZEROVA, TS ;

HENNER, VK ;

YUKALOV, VI .

PHYSICAL REVIEW B, 1992, 46 (02) :682-686

[8]

Binder K., 1979, Monte Carlo methods in statistical physics. Topics in current physics

[9] RADIATION DAMPING IN MAGNETIC RESONANCE EXPERIMENTS [J].

BLOEMBERGEN, N ;

POUND, RV .

PHYSICAL REVIEW, 1954, 95 (01) :8-12

[10] SOLID-STATE NUCLEAR SPIN-FLIP MASER PUMPED BY DYNAMIC NUCLEAR-POLARIZATION [J].

BOSIGER, P ;

BRUN, E ;

MEIER, D .

PHYSICAL REVIEW LETTERS, 1977, 38 (11) :602-605

← 1 2 3 →