CRITICAL SCALING OF TWO-COMPONENT SYSTEMS FROM QUANTUM FLUCTUATIONS-Reference-Cited by-同舟云学术

CRITICAL SCALING OF TWO-COMPONENT SYSTEMS FROM QUANTUM FLUCTUATIONS

Published:2013-12 Issue:12 Volume:22 Page:1350090
ISSN:0218-3013
Container-title:International Journal of Modern Physics E
language:en
Short-container-title:Int. J. Mod. Phys. E

Author:

MABIALA J.¹,BONASERA A.¹²,ZHENG H.¹³,MCINTOSH A. B.¹,KOHLEY Z.¹⁴,CAMMARATA P.¹⁴,HAGEL K.¹,HEILBORN L.¹⁴,MAY L. W.¹⁴,RAPHELT A.¹⁴,SOULIOTIS G. A.¹⁵,ZARRELLA A.¹⁴,YENNELLO S. J.¹⁴

Affiliation:

1. Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA

2. Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare, via Santa Sofia, 62, 95123 Catania, Italy

3. Physics Department, Texas A&M University, College Station, Texas 77843, USA

4. Chemistry Department, Texas A&M University, College Station, Texas 77843, USA

5. Laboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Athens GR-15771, Greece

Abstract

The thermodynamics of excited nuclear systems allows the exploration of a phase transition in a two-component quantum mixture. Temperatures and densities are derived from quantum fluctuations of fermions. The pressures are determined from the grand partition function of Fisher's model. Critical scaling of observables is found for the first time for fragmenting systems which differ in neutron to proton concentrations thus constraining the equation of state (EOS) of asymmetric nuclear material. The derived critical exponent, β = 0.35 ±0.01, belongs to the liquid–gas universality class. The critical compressibility factor Pc/ρcTc increases with increasing neutron concentration, which could be due to finite-size and/or Coulomb effects.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218301313500900

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