CHAOS IN THE LOW-LYING COLLECTIVE STATES OF EVEN-EVEN NUCLEI - QUANTAL FLUCTUATIONS

被引：72

作者：

ALHASSID, Y ^{[1
]}

NOVOSELSKY, A ^{[1
]}

机构：

[1] YALE UNIV, AW WRIGHT NUCL STRUCT LAB, NEW HAVEN, CT 06511 USA

来源：

PHYSICAL REVIEW C | 1992年 / 45卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.45.1677

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study the fluctuations in the spectrum and the E2 transition intensities of the low-lying collective states in heavy nuclei. Using the interacting boson model we investigate the transition from rotational nuclei to gamma-unstable nuclei. Near those two limits the system exhibits regular behavior but in the transition region we observe the onset of chaos where both the level statistics and the intensities statistics are described by the Gaussian orthogonal ensemble of random matrices. The systematics of the onset of chaos within different spin/parity classes are investigated. The quantal results agree with the classical mean-field analysis.

引用

页码：1677 / 1687

页数：11

共 39 条

[1] REGULAR VERSUS CHAOTIC DYNAMICS IN NUCLEAR-SPECTRA NEAR THE GROUND-STATE [J].

ABULMAGD, AY ;

WEIDENMULLER, HA .

PHYSICS LETTERS B, 1985, 162 (4-6) :223-226

[2] CHAOS IN THE LOW-LYING COLLECTIVE STATES OF EVEN-EVEN NUCLEI [J].

ALHASSID, Y ;

NOVOSELSKY, A ;

WHELAN, N .

PHYSICAL REVIEW LETTERS, 1990, 65 (24) :2971-2974

[3] CHAOS IN THE LOW-LYING COLLECTIVE STATES OF EVEN-EVEN NUCLEI - CLASSICAL LIMIT [J].

ALHASSID, Y ;

WHELAN, N .

PHYSICAL REVIEW C, 1991, 43 (06) :2637-2647

[4] TRANSITION-STRENGTH FLUCTUATIONS AND THE ONSET OF CHAOTIC MOTION [J].

ALHASSID, Y ;

LEVINE, RD .

PHYSICAL REVIEW LETTERS, 1986, 57 (23) :2879-2882

[5] UPPER BOUND FOR ENTROPY AND ITS APPLICATIONS TO MAXIMAL ENTROPY PROBLEM [J].

ALHASSID, Y ;

AGMON, N ;

LEVINE, RD .

CHEMICAL PHYSICS LETTERS, 1978, 53 (01) :22-26

[6] STATISTICAL FLUCTUATIONS OF MATRIX-ELEMENTS IN REGULAR AND CHAOTIC SYSTEMS [J].

ALHASSID, Y ;

FEINGOLD, M .

PHYSICAL REVIEW A, 1989, 39 (01) :374-377

[7]

[Anonymous], 1967, RANDOM MATRICES

[8] INTERACTING BOSON MODEL OF COLLECTIVE NUCLEAR-STATES .4. O(6) LIMIT [J].

ARIMA, A ;

IACHELLO, F .

ANNALS OF PHYSICS, 1979, 123 (02) :468-492

[9] INTERACTING BOSON MODEL OF COLLECTIVE NUCLEAR STATES .2. ROTATIONAL LIMIT [J].

ARIMA, A ;

IACHELLO, F .

ANNALS OF PHYSICS, 1978, 111 (01) :201-238

[10] INTERACTING BOSON MODEL OF COLLECTIVE STATES .1. VIBRATIONAL LIMIT [J].

ARIMA, A ;

IACHELLO, F .

ANNALS OF PHYSICS, 1976, 99 (02) :253-317

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