3 papers
hep-ph2004
Anharmonic O(N) oscillator model in next-to-leading order of the 1/N expansion
Alan Dzhioev, J. Wambach, A. Vdovin +1
An extended Holstein-Primakoff mapping which incorporates both single- and double boson mappings is used in the context of O(N+1) anharmonic oscillator with the global symmetry bro…
nucl-th2003
"Modified" BCS theory at finite temperature and its flaws
V. Yu. Ponomarev, A. I. Vdovin
Drawbacks of a recently suggested modified BCS theory at finite temperature in [Phys. Rev. C {\bf 67}, 014304 (2003)] are discussed. We conclude that the thermal behavior of the pa…
nucl-th1997
Nuclear Many-Body Problem at Finite Temperature: A TFD Approach
D. S. Kosov, A. I. Vdovin, J. Wambach
Based on the formalism of thermo-field dynamics a new approach for studying collective excitations in hot finite Fermi systems is presented. Two approximations going beyond the the…