Application of Coherent State Approach for the Cancellation of Infrared Divergences to All Orders in LFQED

被引：2

作者：

More, Jai ^{[1
]}

Misra, Anuradha ^{[1
]}

机构：

[1] Univ Bombay, Dept Phys, Bombay 400098, Maharashtra, India

来源：

FEW-BODY SYSTEMS | 2015年 / 56卷 / 6-9期

关键词：

Coherent State; Asymptotic State; Infrared Divergence; Transition Matrix Element; Soft Photon;

D O I：

10.1007/s00601-014-0932-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We sketch an all order proof of cancellation of infrared (IR) divergences in light front quantum electrodynamics using a coherent state formalism. In this talk, it has been shown that the true IR divergences in fermion self energy are eliminated to all orders in a light-front time-ordered perturbative calculation if one uses coherent state basis instead of the usual Fock basis to calculate the Hamiltonian matrix elements.

引用

页码：551 / 557

页数：7

共 15 条

[1] NON-ABELIAN STRUCTURE OF YANG-MILLS THEORY AND INFRARED-FINITE ASYMPTOTIC STATES [J].

BUTLER, DR ;

NELSON, CA .

PHYSICAL REVIEW D, 1978, 18 (04) :1196-1198

[2] INFRARED DIVERGENCE IN QUANTUM ELECTRODYNAMICS [J].

CHUNG, V .

PHYSICAL REVIEW, 1965, 140 (4B) :1110-&

[3] ASYMPTOTIC DYNAMICS OF QCD, COHERENT STATES, AND THE QUARK FORM-FACTOR [J].

DAHMEN, HD ;

STEINER, F .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1981, 11 (03) :247-249

[4] COHERENT STATE APPROACH TO INFRA-RED BEHAVIOR OF NON-ABELIAN GAUGE THEORIES [J].

GRECO, M ;

PALUMBO, F ;

PANCHERISRIVASTAVA, G ;

SRIVASTAVA, Y .

PHYSICS LETTERS B, 1978, 77 (03) :282-286

[5]

Kulish PP., 1970, Theor. Math. Phys, V4, P745, DOI [DOI 10.1007/BF01066485, 10.1007/BF01066485]

[6] Theta vacuum of the bosonized massive light-front Schwinger model [J].

Martinovic, L ;

Vary, JP .

PHYSICS LETTERS B, 1999, 459 (1-3) :186-192

[7] Discretized light cone quantization and the coherent state basis [J].

Misra, A .

PHYSICAL REVIEW D, 1996, 53 (10) :5874-5885

[8] COHERENT STATES IN NULL-PLANE QED [J].

MISRA, A .

PHYSICAL REVIEW D, 1994, 50 (06) :4088-4096

[9] Coherent states in light-front QCD [J].

Misra, A .

PHYSICAL REVIEW D, 2000, 62 (12) :1-15

[10] Cancellation of infrared divergences to all orders in light front QED [J].

More, Jai D. ;

Misra, Anuradha .

PHYSICAL REVIEW D, 2014, 89 (10)

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