Mott-insulator states of ultracold atoms in optical resonators
We study the low temperature physics of an ultracold atomic gas in the potential formed
inside a pumped optical resonator. Here, the height of the cavity potential, and hence the …
inside a pumped optical resonator. Here, the height of the cavity potential, and hence the …
Metastable states in the triangular-lattice Ising model studied by Monte Carlo simulations: Application to the spin-chain compound
It is well known that the spin-chain compound Ca 3 Co 2 O 6 exhibits interesting plateaus in
the magnetization as a function of the magnetic field at low temperatures. The origin of them …
the magnetization as a function of the magnetic field at low temperatures. The origin of them …
Quantum stability of Mott-insulator states of ultracold atoms in optical resonators
We investigate a paradigm example of cavity quantum electrodynamics with many body
systems: an ultracold atomic gas inside a pumped optical resonator, confined by the …
systems: an ultracold atomic gas inside a pumped optical resonator, confined by the …
Time evolution within a comoving window: scaling of signal fronts and magnetization plateaus after a local quench in quantum spin chains
We present a modification of Matrix Product State time evolution to simulate the propagation
of signal fronts on infinite one-dimensional systems. We restrict the calculation to a window …
of signal fronts on infinite one-dimensional systems. We restrict the calculation to a window …
Intermediate magnetization state and competing orders in Dy2Ti2O7 and Ho2Ti2O7
Among the frustrated magnetic materials, spin-ice stands out as a particularly interesting
system. Residual entropy, freezing and glassiness, Kasteleyn transitions and …
system. Residual entropy, freezing and glassiness, Kasteleyn transitions and …
Monte Carlo simulation of magnetic behavior of a spin-chain system on a triangular lattice
The magnetization behavior and spin configurations of anisotropic triangular spin-chain
systems are investigated using Monte Carlo simulations based on two-and three …
systems are investigated using Monte Carlo simulations based on two-and three …
Universal emergence of the one-third plateau in the magnetization process of frustrated quantum spin chains
We present a numerical study of the magnetization process of frustrated quantum spin-S
chains with S= 1, 3∕ 2, 2 as well as the classical limit. Using the exact diagonalization and …
chains with S= 1, 3∕ 2, 2 as well as the classical limit. Using the exact diagonalization and …
Lattice distortions in a sawtooth chain with Heisenberg and Ising bonds
S Bellucci, V Ohanyan - The European Physical Journal B, 2010 - Springer
An exactly solvable model of the sawtooth chain with Ising and Heisenberg bonds and with
coupling to lattice distortion for Heisenberg bonds is considered in the magnetic field. Using …
coupling to lattice distortion for Heisenberg bonds is considered in the magnetic field. Using …
Topological solitons and bulk polarization switch in collinear type-II multiferroics
We introduce a microscopic model for collinear multiferroics capable of reproducing, as a
consequence of magnetic frustration and easy-axis anisotropy, the so-called “uudd”(or …
consequence of magnetic frustration and easy-axis anisotropy, the so-called “uudd”(or …
Magnetic behavior of nanocrystals of the spin-chain system : Absence of multiple steps in the low-temperature isothermal magnetization
We report that the major features in the temperature dependence of dc and ac
magnetizations of a well-known spin-chain compound Ca 3 Co 2 O 6, which has been …
magnetizations of a well-known spin-chain compound Ca 3 Co 2 O 6, which has been …