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Ground state properties in non-relativistic QED
Ground state properties non-relativistic QED
2011/2/21
We discuss recent results concerning the ground state of non-relativistic quantum electrodynamics as a function of a magnetic coupling constant or the fine structure
constant, obtained by the authors...
The ground state energy of a charged particle on a Riemann surface
ground state energy charged particle Riemann surface
2011/3/3
It is shown that the quantum ground state energy of particle of mass m and elec-tric charge e moving on a compact Riemann surface under the influence of a constant magnetic field of strength B is E0 =...
Absence of ground state for the Nelson model on static space-times
Quantum field theory Nelson model static space-times ground state
2011/1/21
We consider the Nelson model on some static space-times and investigate the problem of absence of a ground state. Nelson models with variable coefficients arise when one replaces in the usual Nelson m...
Global dynamics above the ground state energy for the one-dimensional NLKG equation
Global dynamics ground state energy the one-dimensional NLKG equation
2010/11/12
In this paper we obtain a global characterization of the dynamics of even solutions to the one-dimensional nonlinear Klein-Gordon (NLKG) equation on the line with focusing nonlinearity |u|^{p-1}u, p>5...
Global dynamics above the ground state for the nonlinear Klein-Gordon equation without a radial assumption
Global dynamics above the ground state the nonlinear Klein-Gordon equation
2010/11/8
We extend our previous result on the focusing cubic Klein-Gordon equation in three dimensions to the non-radial case, giving a complete classification of global dynamics of all solutions with energy a...
Improved ground-state estimate by thermal resummation
Improved ground-state estimate thermal resummation
2010/12/16
For the deconfining phase of SU(2) Yang-Mills thermodynamics and for high temperatures we point out that a linear dependence on temperature of a one-loop selfconsistently resummed thermal correction t...
The caloric gauge was introduced in [24] by Tao with studying large data energy critical wave maps mapping from R2+1 to hyperbolic space Hm in view.
Ground state energy of extended Hubbard model by self-consistent RPA
Extended Hubbard Model SCRPA ph-RPA
2010/9/15
Using the SCRPA, we study the intersite interaction effect on the dynamics of N electrons system. We have considered an extended Hubbard model including intrasite and intersite interactions, and we ha...