Renormalization Group Approach to Thermodynamical Variables | Zendy

Koichi Funakubo | Zendy; Makoto Sakamoto | Zendy

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Renormalization Group Approach to Thermodynamical Variables

Author(s) -

Koichi Funakubo,

Makoto Sakamoto

Publication year - 1986

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.76.490

Subject(s) - physics , renormalization group , renormalization , coupling constant , limit (mathematics) , functional renormalization group , order (exchange) , coupling (piping) , mathematical physics , quantum electrodynamics , statistical physics , quantum mechanics , mathematics , mathematical analysis , mechanical engineering , finance , engineering , economics

We study the renormalization group for thermodynamical variables (temperature, chemical potential, etc.). U(N)-),.r/>' model with a chemical potential is investigated to demonstrate our renormalization prescription. We point out that the improvement using the two·loop renormalization·group coefficients is important and drastically changes the lowest order results. We also find that the effective coupling constant and mass in two·loop order approximation give the exact temperature and chemical potential dependence in the large N limit.

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