Publications (16)
Analytic approach to the one-dimensional spin-Peierls system in the entire frequency range
Ping Sun, D. Schmeltzer, A. R. Bishop
We use the two cut-off renormalization group (RG) method to study the spin-Peierls model in one-dimension for the entire phonon frequency range. We integrate out the phonon and sol…
Extended Dynamical Mean Field Theory and GW method
Ping Sun, Gabriel Kotliar
We develop the extended dynamical mean field theory (E-DMFT) with a view towards realistic applications. {\bf 1)} We introduce an intuitive derivation of the E-DMFT formalism. By i…
Mott-Hubbard Scenario for the Metal-Insulator Transition in the Two Dimensional Electron Gas
Ping Sun
By comparing the responses to an in-plane magnetic field near the metal-insulator transition (MIT), we find that the observed MIT in Si MOSFETs can be described by the non-perturba…
Extended Dynamical Mean Field Theory Study of the Periodic Anderson Model
Ping Sun, Gabriel Kotliar
We investigate the competition of the Kondo and the RKKY interactions in heavy fermion systems. We solve a periodic Anderson model using Extended Dynamical Mean Field Theory (EDMFT…
A probabilistic approach for enumeration of certain Young tableaux
Ping Sun
In this paper we establish an order statistics model of Young tableaux. Multiple integration over nested simplexes is applied to the enumeration of Young tableaux. A brief proof of…
Variation comparison between the -distribution and the normal distribution
Ping Sun, Ze-Chun Hu, Wei Sun
Let be an -random variable with numerator and denominator degrees of freedom and , respectively. We investigate the inequality: $P\{|X_{d_1,d_2}-E[X_{d_…
Enumeration of standard Young tableaux of shifted strips with constant width
Ping Sun
Let be the number of standard Young tableau of truncated shifted shape with rows and boxes in each row. By using of the integral method this paper derives…
The extreme values of two probability functions for the Gamma distribution
Ping Sun, Ze-Chun Hu, Wei Sun
Motivated by Chvátal's conjecture and Tomaszewaki's conjecture, we investigate the extreme value problem of two probability functions for the Gamma distribution. Let be ar…
One-dimensional spin-1/2 Heisenberg antiferromagnet in a weak external magnetic field
Ping Sun, D. Schmeltzer
The one dimensional spin-1/2 Heisenberg antiferromagnet in a weak magnetic field h is studied using the bosonization method. We derive a set of renormalization group equations. The…
Coherent control of an optical tweezer phonon laser
Kai Zhang, Kewen Xiao, Danika Luntz-Martin +4
The creation and manipulation of coherence continues to capture the attention of scientists and engineers. The optical laser is a canonical example of a system that, in principle,…
Interfacial dead layer effects on current-voltage characteristics in asymmetric ferroelectric tunnel junctions
Ping Sun, Yin-Zhong Wu, Su-Hua Zhu +2
Current-voltage characteristics and loops are simulated in SrRuO/BaTiO/Pt tunneling junctions with interfacial dead layer. The unswitchable interfacial polarizati…
Consequences of the local spin self-energy approximation on the heavy Fermion quantum phase transition
Ping Sun, Gabriel Kotliar
We show, using the periodic Anderson model, that the local spin self-energy approximation, as implemented in the extended dynamical mean field theory (EDMFT), results in a first or…
Many-Body Approximation Scheme Beyond GW
Ping Sun, Gabriel Kotliar
We explore the combination of the extended dynamical mean field theory (EDMFT) with the GW approximation (GWA); the former sums the local contributions to the self-energies to infi…
Adaptive Differential Denoising for Respiratory Sounds Classification
Gaoyang Dong, Zhicheng Zhang, Ping Sun +1
Automated respiratory sound classification faces practical challenges from background noise and insufficient denoising in existing systems. We propose Adaptive Differential Denoisi…
Variation comparison between infinitely divisible distributions and the normal distribution
Ping Sun, Ze-Chun Hu, Wei Sun
Let be a random variable with finite second moment. We investigate the inequality: , where is a standard normal rando…
Understanding the Heavy Fermion Phenomenology from Microscopic Model
Ping Sun, Gabriel Kotliar
We solve the 3D periodic Anderson model via two impurity DMFT. We obtain the temperature v.s. hybridization phase diagram. In approaching the quantum critical point (QCP) both the…