Long DNA molecule as a pseudoscalar liquid crystal (2009)
Petrosyan, K. G., Hu, Chin-Kun
We show that a long DNA molecule can form a novel condensed phase of matter, the pseudoscalar liquid crystal, that consists of aperiodically ordered DNA fragments in right-handed B and left-handed Z...
Adiabatic feedback control of Hamiltonian systems (2006)
Allahverdyan, A. E., Petrosyan, K. G., Saakian, D. B.
We study feedback control of classical Hamiltonian systems with the controlling parameter varying slowly in time. The control aims to change system's energy. We show that the control problems can be...
Anomalous latent heat in non-equilibrium phase transitions (2005)
Allahverdyan, A. E., Petrosyan, K. G.
We study first-order phase transitions in a two-temperature system, where due to the time-scale separation all the basic thermodynamical quantities (free energy, entropy, etc) are well-defined. The...
Statistical networks emerging from link-node interactions (2005)
Allahverdyan, A. E., Petrosyan, K. G.
We study a model for a statistical network formed by interactions between its nodes and links. Each node can be in one of two states (Ising spin up or down) and the node-link interaction facilitates...
Bifermionic Superfluidity in Toroidal Optical Lattices (2005)
We consider a gas of neutral fermions trapped in a specific optical trap that provides a tight confinement of a Fermi gas in a torus with a potential periodic along the azimuthal direction. The...
Exact steady-state Wigner function for a nondegenerate parametric oscillator (2000)
Kheruntsyan, K., Petrosyan, K. G.
We consider the model of a nondegenerate parametric oscillator, in the adiabatic limit of strongly damped pump mode, and find an exact analytic solution for the joint two-mode Wigner function in the...
Exact steady-state Wigner function for a nondegenerate parametric oscillator (2000)
Kheruntsyan, K., Petrosyan, K. G.
We consider the model of a nondegenerate parametric oscillator, in the adiabatic limit of strongly damped pump mode, and find an exact analytic solution for the joint two-mode Wigner function in the...
Topological phases and circulating states of Bose-Einstein condensates (1998)
We show that the quantum topological effect predicted by Aharonov and Casher (AC effect) [Phys. Rev. Lett. 53, 319 (1984)] may be used to create circulating states of magnetically trapped atomic...