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Quantum Dynamical Approach of Wavefunction Collapse in Measurement Process and Its Application to Quantum Zeno Effect
Chang-Pu Sun
The systematical studies on the dynamical approach of wavefunction collapse in quantum measurement are reported in this paper based on the Hepp-Coleman's model and its generalizati…
Quantum Dynamics for the Control of Atomic State by a Quantized Optical Ring Cavity
Chang-Pu Sun
A generalized approach of the Born-Oppenheimer approximation is developed to analytically deal with the influence exercised by the spatial motion of atom's mass-center on a two-lev…
Exact Dynamics of Quantum Dissipative System in Constant External Field
Sun, C. P, L. H. Yu
The quantum dynamics of a simplest dissipative system, a particle moving in a constant external field , is exactly studied by taking into account its interaction with a bath of Ohm…
High-Order Adiabatic Approximation for Non-Hermitian Quantum System and Complexization of Berry's Phase
Chang-Pu Sun
In this paper the evolution of a quantum system drived by a non-Hermitian Hamiltonian depending on slowly-changing parameters is studied by building an universal high-order adiabat…
Quantum Dynamical Model for Wave Function Reduction in Classical and Macroscopic Limits
Chang-Pu Sun
In this papper, a quantum dynamical model describing the quantum measurement process is presented as an extensive generalization of the Coleman-Hepp model. In both the classical li…
Dynamical Realizability for Quantum Measurement and Factorization of Evolution Operator
Chang_Pu Sun
By building a general dynamical model for quantum measurement process,it is shown that the factorization of reduced evolution operator sufficiently results in the quantum mechanica…
Quantum double of Heisenberg-Weyl algebra, its universal R-matrix and their representations
Chang-Pu Sun, Mo-Lin Ge
In this paper a new quasi-triangular Hopf algebra as the quantum double of the Heisenberg-Weyl algebra is presented.Its universal R-matrix is built and the corresponding representa…
Exotic Quantum Double,Its Universal R-matrix And Their Representations
Chang-Pu Sun
The exotic quantum double and its universal R-matrix for quantum Yang-Baxter equation are constructed in terms of Drinfeld's quantum double theory.As a new quasi-triangular Hopf al…
The Canonical Quantization in Terms of Quantum Group and Yang-Baxter Equation
Chang-Pu Sun
In this paper it is shown that a quantum observable algebra, the Heisenberg-Weyl algebra, is just given as the Hopf algebraic dual to the classical observable algebra over classica…
The l-State Boson Algebra as a Non-Standard Quantum Double and its Universal R-Matrix for Yang-Baxer Equation
Wei Li, Chang-Pu Sun, Mo-Lin Ge
In this paper we construct a new quantum double by endowing the l-state bosonalgebra with a non-trivial Hopf algebra structure,which is not a q-deformation of the Lie algebra or su…