35 citations · 124 across the 13 of their papers we have counts for
13 papers
Phonon-assisted tunneling in Jahn-Teller Ee impurity centers in crystals
V. Hizhnyakov
Tunnel transitions between various distorted states of impurity centers in crystals with the Ee Jahn-Teller effect are considered, taking into account changes in the dyna…
Implementation of phase gates using single photons
V. Hizhnyakov
Quantum computing algorithms using the quantum Fourier transform require repeated use of a phase shift gate. In the case of qubits using optical photons for operation, this gate ca…
Enhancement of long-wave vibronic interaction and quantum diffusion in liquids
Vladimir Hizhnyakov, Aleksander Shelkan
The zero-phonon type hoping motion of defects in the solid and liquid phases, causing quantum diffusion, is considered. It was found that due to the previously discovered significa…
Emission of photon pairs in optical fiber -- effect of zero-point fluctuations
V. Hizhnyakov
A nonlinear quantum-optical process is considered: emission of photon pairs by the reflecting end of a fiber excited by a standing laser wave. Radiation occurs due to periodic chan…
Transverse intrinsic localized modes in monatomic chain and in graphene
V. Hizhnyakov, M. Klopov, A. Shelkan
In this paper an analytical and numerical study of anharmonic vibrations of monatomic chain and graphene in transverse (perpendicular) with respect to the chain/plane direction is…
Dynamical Casimir effect for surface plasmon polaritons
V. Hizhnyakov, A. Loot, S. Ch. Azizabadi
Emission of photon pairs by an interface of asymmetric dielectric and thin metal film excited by a normally falling plane wave is considered. The excitation causes oscillations in…
Rate theory of acceleration of the defect annealing driven by discrete breathers
V. I. Dubinko, J. F. R. Archilla, V. Hizhnyakov +1
Novel mechanisms of defect annealing in solids are discussed, which are based on the large amplitude anharmonic lattice vibrations, a.k.a. intrinsic localized modes or discrete bre…
Theory and MD simulations of intrinsic localized modes and defect formation in solids
V. Hizhnyakov, M. Haas, A. Shelkan +1
MD simulations of recoil processes following the scattering of X-rays or neutrons have been performed in ionic crystals and metals. At small energies (<10 eV) the recoil can induce…
Experimental observation of moving intrinsic localized modes in germanium
J. F. R. Archilla, S. M. M. Coelho, F. D. Auret +3
Deep level transient spectroscopy shows that defects created by alpha irradiation of germanium are annealed by low energy plasma ions up to a depth of several thousand lattice unit…
Linear local modes induced by intrinsic localized modes in a monatomic chain
V. Hizhnyakov, A. Shelkan, M. Klopov +2
A theory is developed to describe the effect of an intrinsic localized mode (ILM) on small vibrations in a monatomic chain with hard quartic anharmonicity. One prediction is the ap…
Pressure dependence of two-level systems in disordered atomic chain
A. Shelkan, V. Hizhnyakov
The dependence of two-level systems in disordered atomic chain on pressure, both positive and negative was studied numerically. The disorder was produced through the use of interat…
Self-consistent theory of intrinsic localized modes: application to monatomic chain
V. Hizhnyakov, A. Shelkan, M. Klopov
A theory of intrinsic localized modes (ILMs) in anharmonic lattices is developed, which allows one to reduce the original nonlinear problem to a linear problem of small variations…
Multiphonon anharmonic decay of a quantum mode
V. Hizhnyakov
A nonperturbative theory of multiphonon anharmonic transitions between energy levels of a local mode is presented. It is shown that the rate of transitions rearranges near the crit…