Thermal quantum electrodynamics of nonrelativistic charged fluids.
نویسندگان
چکیده
The theory relevant to the study of matter in equilibrium with the radiation field is thermal quantum electrodynamics (TQED). We present a formulation of the theory, suitable for nonrelativistic fluids, based on a joint functional integral representation of matter and field variables. In this formalism cluster expansion techniques of classical statistical mechanics become operative. They provide an alternative to the usual Feynman diagrammatics in many-body problems, which is not perturbative with respect to the coupling constant. As an application we show that the effective Coulomb interaction between quantum charges is partially screened by thermalized photons at large distances. More precisely one observes an exact cancellation of the dipolar electric part of the interaction, so that the asymptotic particle density correlation is now determined by relativistic effects. It still has the r(-6) decay typical for quantum charges, but with an amplitude strongly reduced by a relativistic factor.
منابع مشابه
Dedicated to Irene Z. CLASSICAL TUNNELING AS THE RESULT OF RETARDATION IN CLASSICAL ELECTRODYNAMICS: NONRELATIVISTIC CASE
The problem of radiation reaction in classical electrodynamics is still discussed in the literature (for ex. see [1]). This problem can be formulated in the following way: it is known that classical charged body moving with acceleration must radiate. Thus there is back reaction of outgoing electromagnetic waves. But what quantity feels this back reaction pure mechanical mass of a charged body o...
متن کاملConnecting Blackbody Radiation, Relativity, and Discrete Charge in Classical Electrodynamics
It is suggested that an understanding of blackbody radiation within classical physics requires the presence of classical electromagnetic zero-point radiation, the restriction to relativistic (Coulomb) scattering systems, and the use of discrete charge. The contrasting scaling properties of nonrelativistic classical mechanics and classical electrodynamics are noted, and it is emphasized that the...
متن کاملPhysical state for non-relativistic quantum electrodynamics
A physical subspace and physical Hilbert space associated with asymptotic fields of nonrelativistic quantum electrodynamics are constructed through the Gupta-Bleuler procedure. Asymptotic completeness is shown and a physical Hamiltonian is defined on the physical Hilbert space.
متن کاملEffective mass of nonrelativistic quantum electrodynamics
The effective mass meff of the nonrelativistic quantum electrodynamics with spin 1/2 is investigated. Let meff/m = 1 + a1(Λ/m)e + a2(Λ/m)e +O(e6), where m denotes the bare mass. a1(Λ/m) ∼ log(Λ/m) as Λ → ∞ is well known. Also a2(Λ/m) ∼ √ Λ/m is established for a spinless case. It is shown that a2(Λ/m) ∼ (Λ/m) in the case including spin 1/2.
متن کاملIntegral for Nonrelativistic Quantum Electrodynamics
Abstract: The Feynman path integral for nonrelativistic quantum electrodynamics is studied mathematically of a standard model in physics, where the electromagnetic potential is assumed to be periodic with respect to a large box and quantized thorough its Fourier coefficients. In physics, the Feynman path integral for nonrelativistic quantum electrodynamics is defined very formally. For example,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review. E, Statistical, nonlinear, and soft matter physics
دوره 75 4 Pt 1 شماره
صفحات -
تاریخ انتشار 2007