25 citations · 34 across the 3 of their papers we have counts for
3 papers
quant-ph2021★ 2 cited
Energy levels estimation on a quantum computer by evolution of a physical quantity
Kh. P. Gnatenko, H. P. Laba, V. M. Tkachuk
We show that the time dependence of mean value of a physical quantity is related with the transition energies of a quantum system. In the case when the operator of a physical quant…
quant-ph2021★ 7 cited
Geometric properties of evolutionary graph states and their detection on a quantum computer
Kh. P. Gnatenko, H. P. Laba, V. M. Tkachuk
Geometric properties of evolutionary graph states of spin systems generated by the operator of evolution with Ising Hamiltonian are examined, using their relationship with fluctuat…
quant-ph2017★ 25 cited
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…