Excited-state quantum phase transitions

Cejnar, P; Stransky, P; Macek, M; Kloc, M

Cejnar, P (corresponding author), Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 18000, Czech Republic.

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2021; 54 (13):

Abstract

We review the effects of excited-state quantum phase transitions (ESQPTs) in interacting many-body systems with finite numbers of collective degrees o......

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