Phase structure of four-dimensional gonihedric spin system

Koutsoumbas, G; Savvidy, GK; Savvidy, KG

dc.contributor.author	Koutsoumbas, G	en
dc.contributor.author	Savvidy, GK	en
dc.contributor.author	Savvidy, KG	en
dc.date.accessioned	2014-03-01T01:13:15Z
dc.date.available	2014-03-01T01:13:15Z
dc.date.issued	1997	en
dc.identifier.issn	0370-2693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12395
dc.subject	Coupling Constant	en
dc.subject	First-order Phase Transition	en
dc.subject	Gauge Invariance	en
dc.subject	Monte Carlo Simulation	en
dc.subject	Quantum Fluctuation	en
dc.subject	Spin System	en
dc.subject	Phase Transition	en
dc.subject	Second Order	en
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	SELF-AVOIDING SURFACES	en
dc.subject.other	GAUGE FIELDS	en
dc.subject.other	INTERACTION HIERARCHY	en
dc.subject.other	3 DIMENSIONS	en
dc.subject.other	ANNNI MODEL	en
dc.subject.other	ISING-MODEL	en
dc.subject.other	LATTICE	en
dc.subject.other	SIMULATION	en
dc.subject.other	TRANSITION	en
dc.title	Phase structure of four-dimensional gonihedric spin system	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0370-2693(97)00978-7	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0370-2693(97)00978-7	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	We perform Monte Carlo simulations of a gauge invariant spin system which describes random surfaces with gonihedric action in four dimensions. The Hamiltonian is a mixture of one-plaquette and additional two-and three-plaquette interaction terms with specially adjusted coupling constants [G.K. Savvidy, F.J. Wegner, Nucl. Phys. B 413 (1994) 605, G.K. Savvidy, K.G. Savvidy, Phys. Lett. B 324 (1994) 72] For the system with the large self-intersection coupling constant k we observe the second-order phase transition at temperature beta(c) similar or equal to 1.75. The string tension is generated by quantum fluctuations as it was expected theoretically [G.K. Savvidy, K.G. Savvidy, Mod. Phys. Lett. A 8 (1993) 2963]. This result suggests the existence of a noncritical string in four dimensions. For smaller values of k the system undergoes the first order phase transition and for k close to zero exhibits a smooth crossover. (C) 1997 Elsevier Science B.V.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics	en
dc.identifier.doi	10.1016/S0370-2693(97)00978-7	en
dc.identifier.isi	ISI:A1997YF99000025	en
dc.identifier.volume	410	en
dc.identifier.issue	2-4	en
dc.identifier.spage	241	en
dc.identifier.epage	249	en