Two- and three-body effective potentials between impurities in ideal BEC

نویسندگان

چکیده

Abstract We exactly calculate the full temperature dependence of Casimir-like forces appearing between two and three static impurities loaded in ideal Bose gas below Bose–Einstein condensation transition point. Assuming short-ranged character boson-impurity interaction, calculation procedure presented here can be easily extended on a system with an arbitrary number immersed.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Two and Three-Body Interactions between CO, H2O, and HClO4

Intermolecular interactions of different configurations in the HOClO3···CO and HOClO3···H2O dyad and CO···HOClO3···H2O triad systems have been studied at MP2/6-311++G(2d,2p) computational level. Molecular geometries, binding energies, cooperative energies, many-body interaction energies, and Energy Decomposition Analysis (EDA) were eval...

متن کامل

Two-Body Densities and Effective Potentials

For an A-particle quantum system in a state 9, the movement of any pair of particles is studied. Using the corresponding two-body densities, the effective potential that determines the relative and center of mass movements of the pair of particles is built. Some aspects of the proposed general procedure are applied to different, functions used to describe the ground state of the helium atom. c ...

متن کامل

Nonmagnetic impurities in two- and three-dimensional Heisenberg antiferromagnets.

In this paper we study in a large-S expansion effects of substituting spins by non-magnetic impurities in twoand threedimensional Heisenberg antiferromagnets in a weak magnetic field. In particular, we demonstrate a novel mechanism where magnetic moments are induced around non-magnetic impurities when magnetic field is present. As a result, Curie-type behaviour in magnetic susceptibility can be...

متن کامل

Effective way to sum over long-range Coulomb potentials in two and three dimensions.

I propose a method to calculate the logarithmic interaction in two dimensions and the Coulomb interaction in three dimensions under periodic boundary conditions. This paper considers the case of a rectangular cell in two dimensions and an orthorhombic cell in three dimensions. Unlike the Ewald method, there is no parameter to be optimized, nor does the method involve error functions, thus leadi...

متن کامل

Two-body relaxation in softened potentials

Semi-analytical calculations for the two-body relaxation in softened potentials are presented and compared with N-body simulations. With respect to a Keplerian potential the increase of the relaxation time in the modified potentials is generally less than one order of magnitude, typically between 2 and 5, if the softening length is of the order of the mean interparticle distance. A comparison b...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics A

سال: 2021

ISSN: ['1751-8113', '1751-8121']

DOI: https://doi.org/10.1088/1751-8121/abdbc5