Pregled bibliografske jedinice broj: 256711
Quantum Fluctuations versus Topology - a Study in U(1)_2 Lattice Gauge Theory
Quantum Fluctuations versus Topology - a Study in U(1)_2 Lattice Gauge Theory // Physics letters. B, 409 (1997), 1-4; 371-376 doi:10.1016/S0370-2693(97)00932-5 (međunarodna recenzija, članak, znanstveni)
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Naslov
Quantum Fluctuations versus Topology - a Study in
U(1)_2 Lattice Gauge Theory
Autori
Gattringer, Christof R. ; Hip, Ivan ; Lang, Christian B.
Izvornik
Physics letters. B (0370-2693) 409
(1997), 1-4;
371-376
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Lattice gauge theory ; Topology
Sažetak
Using the geometric definition of the topological charge we decompose the path integral of 2- dimensional U(1) lattice gauge theory into topological sectors. In a Monte Carlo simulation we compute the average value of the action as well as the distribution of its values for each sector separately. These numbers are compared with analytic lower bounds of the action which are relevant for classical configurations carrying topological charge. We find that quantum fluctuations entirely dominate the path integral. Our results for the probability distribution of the Monte Carlo generated configurations among the topological sectors can be understood by a semi- phenomenological argument.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
