Spontaneous symmetry breaking and the Goldstone theorem in non-Hermitian field theories
Spontaneous symmetry breaking and the Goldstone theorem in non-Hermitian field theories
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非厄米场论中的自发对称破缺和戈德斯通定理
DOI:
10.1103/physrevd.98.045001
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发表时间:
2018
影响因子:
5
通讯作者:
Alexandre J
中科院分区:
文献类型:
--
作者:
Alexandre J
We demonstrate the extension to parity-time ()-symmetric field theories of the Goldstone theorem, confirming that the spontaneous appearance of a field vacuum expectation value via minimization of the effective potential in a non-Hermitian model is accompanied by a massless scalar boson. Laying a basis for our analysis, we first show how the conventional quantization of the path-integral formulation of quantum field theory can be extended consistently to a non-Hermitian model by consideringconjugation instead of Hermitian conjugation. The extension of the Goldstone theorem to a-symmetric field theory is made possible by the existence of a conserved current that does not, however, correspond to a symmetry of the non-Hermitian Lagrangian. In addition to extending the proof of the Goldstone theorem to a-symmetric theory, we exhibit a specific example in which we verify the existence of a massless boson at the tree and one-loop levels.
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影响因子:
5
作者:
M. Blencowe;H. Jones;A. P. Korte
通讯作者:
A. P. Korte
DOI:
10.1088/1742-6596/952/1/012012
发表时间:
2017
期刊:
Journal of Physics: Conference Series
影响因子:
--
作者:
J. Alexandre;P. Millington;D. Seynaeve
通讯作者:
D. Seynaeve
DOI:
10.1209/0295-5075/113/61001
发表时间:
2015
期刊:
Europhysics Letters
影响因子:
--
作者:
T. Ohlsson
通讯作者:
T. Ohlsson
DOI:
10.1088/1751-8113/49/45/45lt01
发表时间:
2015
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
作者:
C. Bender;Daniel W. Hook;N. Mavromatos;S. Sarkar
通讯作者:
S. Sarkar
DOI:
10.1023/b:cjop.0000044011.16303.00
发表时间:
2004
期刊:
Czechoslovak Journal of Physics
影响因子:
--
作者:
H. Jones
通讯作者:
H. Jones