33 Result(s)

Article

Effect of the Singlet Pairing Force on the Spin Structures of 3-Species Bose-Einstein Condensates with Spin-1 Atoms

The spin structures of Bose-Einstein condensates (BEC) with three kinds of spin-1 atoms are studied. The many-body Hamiltonian is diagonalized in the spin space via a strict numerical approach to obtain eigen-...

Y. Z. He, Y. M. Liu, C. G. Bao in Journal of Low Temperature Physics (2022)

Article

Spin-Textures of the Condensates with Two Kinds of Spin-1 Atoms Studied Beyond the Single Spatial Mode Approximation

This paper is based on the coupled Gross–Pitaevskii equations (CGP) for two-species BEC, where both the central and spin-dependent forces are included. Under the Thomas–Fermi approximation (TFA), an approach i...

Y. Z. He, Y. M. Liu, C. G. Bao in Journal of Low Temperature Physics (2019)

Article

Common Features in Multi-species Bose–Einstein Condensates and the Origin of the Inherent Critical Phenomena

A general approach is proposed to solve the coupled Gross–Pitaevskii equations (CGP) for K-species Bose–Einstein condensates under the Thomas–Fermi approximation. We aim at finding out the common features of thes...

Y. M. Liu, Y. Z. He, C. G. Bao in Journal of Low Temperature Physics (2019)

Article

A 2-Level Condensate with Tunable and Sharp Susceptibility Against the Magnetic Field

A 2-level condensate of spin-1 Na atoms under a magnetic field B with its spin modes decoupled from its spatial modes is studied. This system can emerge at very low temperature by putting an atom with its spin do...

Z. B. Li, D. X. Yao, Y. Z. He, C. G. Bao in Journal of Low Temperature Physics (2016)

Article

Spin-Thermodynamics of Ultra-Cold Spin-1 Atoms

The spin-thermodynamics of a \(N\) N ...

Z. B. Li, D. X. Yao, C. G. Bao in Journal of Low Temperature Physics (2015)

Article

Universal Prohibited Zones in the Coordinate Space of Few-Body Systems

In some special zones of the high-dimensional coordinate space of few-body systems with identical particles, the operation of an element (or a product of elements) of the symmetry groups of the Hamiltonian on ...

C. G. Bao in Few-Body Systems (2013)

Article

Evaluation of the ⁵²Cr–⁵² Cr Interaction via Spin-Flip Scattering

In order to evaluate g ₀, the interaction strength of a pair of ⁵²Cr atoms with total spin S = 0, a specially designed s-wave scattering of the pair has been studied theoretically. Both th...

Y. Z. He, Z. F. Chen, Z. B. Li, C. G. Bao in Few-Body Systems (2009)

Article

Spin-Structures of N-boson Systems with Nonzero Spins: An Analytically Solvable Model with Pairing Force

A model is proposed to study the possible pairing structures of N-boson systems with nonzero spin. Analytical solutions have been obtained. The emphasis is placed on the spin-structures of ground states with a...

C. G. Bao in Few-Body Systems (2009)

Chapter and Conference Paper

Experimental Study on the Strength Characteristics of Expansive Soil Reinforced With Synthetic Fibers

Expansive soil reinforced with synthetic fibers is a modified method developed in recent years, but experimental study results on its engineering behavior are rare at present. Polypropylence monofilament fiber...

Y. H. Tang, C. G. Bao, M. Y. Wang… in Geosynthetics in Civil and Environmental E… (2009)

Chapter and Conference Paper

Experimental Study on the Interaction Mechanism Between Geogrid and Expansive Rock by Pull-Out Test

The interaction mechanism between geogrid and mid-weak swelling rock in the Project of South-to-North Water Transfers Projects is investigated by pull-out tests conducted at the modified laminated shear test a...

J. H. Ding, J. Tong, C. G. Bao in Geosynthetics in Civil and Environmental Engineering (2009)

Article

Fractional Aharonov-Bohm oscillation of a two-layer ring with two electrons

When a circular ring suffers a special topological transformation, it becomes a two-layer ring. Due to the special topology of the two-layer ring, orbital angular momenta are allowed to be a half-integer. Thi...

Y. Z. He, C. G. Bao in The European Physical Journal B (2008)

Article

Modes of Excitation in Two-Dimensional Quantum Dots

The electronic structures of low-lying excited states of a polarized quantum dot with 6 electrons has been studied. The Hamiltonian has been diagonalized to obtain the eigenstates. All results are extracted fr...

G. M. Huang, Y. M. Liu, C. G. Bao in Few-Body Systems (2005)

Article

Low-Lying States of Four-Boson Systems with a Repulsive Core and an Attractive Tail in the Interaction

 The Schrödinger equation of a four-boson model system is solved via a variational procedure. The pairwise interaction contains a repulsive core and an attractive tail. The features of the low-lying states are...

X. G. Li, C. G. Bao in Few-Body Systems (2001)

Article

Classical-Quantum Correspondencein a Helium-Like System on Conic Sections

C. -S. He, Y. -W. Duan, C. -G. Bao, J. -M. Yuan in Few-Body Systems (1999)

Article

Analysis of the Structure of Low-Lying States of Four-Boson Systems Based on Symmetry

The structure of inherent nodal surfaces of four-boson systems has been investigated. The most probable structures for each low-lying state have been found. A number of predictions on the structures of indivi...

C.-G. Bao, X.-G. Li, W.-F. **e in Few-Body Systems (1998)