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Critical Temperature Shift in Weakly Interacting Bose Gas
High performance monte carlo quantum bose gas the scattering
2014/12/22
With a high-performance Monte Carlo algorithm we study the interaction-induced shift of the critical point in weakly interacting three-dimensional |ψ|4 theory (which includes quantum Bose gas). In ter...
New evidence for zero-temperature relaxation in a spin-polarized Fermi liquid
The experiment report parameters and coefficients
2014/12/20
Spin-echo experiments are reported for 3He-4He solutions under extremely high B/T conditions, B=14.75 T and T≥1.73 mK. The 3He concentration x3 was adjusted close to the valu...
Understanding temperature and chemical potential using computer simulations
Monte carlo temperature chemical potential
2014/12/20
Several Monte Carlo algorithms and applications that are useful for understanding the concepts of temperature and chemical potential are discussed. We then introduce a generalization of the demon algo...
Numerical study of the three-dimensional random-field Ising model at zero and positive temperature
Three-dimensional ising model zero temperature heat capacity critical point
2014/12/20
In this paper the three-dimensional random-field Ising model is studied at both zero temperature and positive temperature. Critical exponents are extracted at zero temperature by finite size scaling a...
Effects of finite temperature on the Mott-insulator state
Temperature ultracold bose atoms optical lattice atom
2014/12/20
We investigate the effects of finite temperature on ultracold Bose atoms confined in an optical lattice plus a parabolic potential in the Mott-insulator state. In particular, we analyze the temperatur...
Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
Dilution system lattice fermion monte carlo thermodynamic functions
2014/12/20
The unitarity regime of the BCS-BEC crossover can be realized by diluting a system of two-component lattice fermions with an on-site attractive interaction. We perform a systematic-error-free finite-t...
Critical Temperature of Interacting Bose Gases in Two and Three Dimensions
Superfluid temperature bose gas the space dimension integral monte carlo simulation particles atoms
2014/12/19
We calculate the superfluid transition temperature of homogeneous interacting Bose gases in three and two spatial dimensions using large-scale path integral Monte Carlo simulations (with up to N=105 p...
Effects of boundaries and density inhomogeneity on states of vortex matter in Bose-Einstein condensates at finite temperature
Quantum vortices 3 d eddy current condensate vortex entanglement
2014/12/19
Most of the literature on quantum vortices predicting various states of vortex matter in three dimensions at finite temperatures in quantum fluids is based on the assumption of an extended and homogen...
Scanning Superfluid-Turbulence Cascade by its Low-Temperature Cutoff
Kolmogorov low temperature quantization the vortex line density coefficient of friction
2014/12/19
On the basis of a recently proposed scenario of the transformation of the Kolmogorov cascade into the Kelvin-wave cascade, we develop a theory of low-temperature cutoff. The theory predicts a specific...
Critical Temperature Curve in BEC-BCS Crossover
Strong relevant regime condensation two-component system fermion monte carlo method function
2014/12/19
The strongly correlated regime of the crossover from Bardeen-Cooper-Schrieffer pairing to Bose-Einstein condensation can be realized by diluting a system of two-component fermions with a short-range a...
Suppression of the critical temperature for superfluidity near the Mott transition
Ultracold atoms optical lattice gas. Quantum multibody system such as quantum simulator
2014/12/19
Ultracold atomic gases in optical lattices have proven to be a controllable, tunable and clean implementation of strongly interacting quantum many-body systems. An essential prospect for such quantum ...
Median Algorithm for Sector Spectra Calculation from Images Registered by the Spectral Airglow Temperature Imager
Spectral Airglow Temperature imager sector temperature sector spectre median filter
2011/8/3
Abstract: The Spectral Airglow Temperature Imager is an instrument, specially designed for investigation of the wave processes in the Mesosphere-Lower Thermosphere. In order to determine the kinematic...
Finite-temperature nonlinear dynamics in cavity QED: A Thermofield Dynamics Approach
Finite-temperature dynamics Thermofield Dynamics Approach
2011/9/29
Heath-bath effects in the dynamics of atom + cavity system are studied. The temperature effects are explored using thermofield dynamics formalism. It is found that the dynamics of the system is sensit...
On the general XY Model: positive and zero temperature, selection and non-selection
the general XY Model positive zero temperature non-selection Dynamical Systems
2011/7/28
On the general XY Model: positive and zero temperature, selection and non-selection.
Long-distance behavior of temperature correlation functions in the one-dimensional Bose gas
Long-distance behavior temperature correlation functions
2010/12/27
We describe a Bethe ansatz based method to derive, starting from a multiple integral representation, the long-distance asymptotic behavior at finite temperature of the density-density correlation fun...