259 citations · 2k across the 75 of their papers we have counts for
5 papers · 1 filter
Lee-Yang zeros and two-time spin correlation function
Kh. P. Gnatenko, A. Kargol, V. M. Tkachuk
The two-time correlation function for probe spin interacting with spin system (bath) is studied. We show that zeros of this function correspond to zeros of partition function of sp…
Time correlation functions and Fisher zeros for q-deformed Bose gas
Kh. P. Gnatenko, A. Kargol, V. M. Tkachuk
The time-dependent correlation functions of q-deformed Bose gas are studied. We find relation of zeros of the correlation functions with the Fisher zeros of partition function of t…
Composite system in rotationally invariant noncommutative phase space
Kh. P. Gnatenko, V. M. Tkachuk
Composite system is studied in noncommutative phase space with preserved rotational symmetry. We find conditions on the parameters of noncommutativity on which commutation relation…
Exact solutions for two-body problems in 1D deformed space with minimal length
M. I. Samar, V. M. Tkachuk
We reduce two-body problem to the one-body problem in general case of deformed Heisenberg algebra leading to minimal length.Two-body problems with delta and Coulomb-like interactio…
Noncommutative phase space with rotational symmetry and hydrogen atom
Kh. P. Gnatenko, V. M. Tkachuk
We construct algebra with noncommutativity of coordinates and noncommutativity of momenta which is rotationally invariant and equivalent to noncommutative algebra of canonical type…