30,159 research outputs found
Lattice-Renormalization of the Polyakov Loop
Get PDFZantow F. Lattice-Renormalization of the Polyakov Loop. Bielefeld: Fakultät für Physik; 2003
Monopolos magnéticos Z2 em teorias de Yang-Mills-Higgs com simetria de gauge SU(n)
Get PDFDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-graduação em FísicaMonopolos magnéticos têm sido objetos de grande interesse nos últimos anos, principalmente por serem previstos em algumas teorias de grande unificação e por, possivelmente, serem relevantes no fenômeno do confinamento em QCD. Consideramos uma teoria de Yang-Mills-Higgs com simetria de gauge SU(n) quebrada espontaneamente em SO(n) que apresenta condições topológicas necessárias para a existência de monopolos Z2. Construímos as formas assintóticas desses monopolos, considerando duas quebras distintas do SU(n) em SO(n), e verificamos que os monopolos fundamentais estão associados aos pesos da representação definidora da álgebra so(n)v
Integral formulas on projective space and the radon transform of Gindikin-Henkin-Polyakov
Get PDFWe construct a variant of Koppelman's formula for (0, q)-forms with values in a line bundle, 0 (l), on projective space. The formula is then applied to a study of a Radon transform for (0, q) -forms, introduced by Gindikin-Henkin-Polyakov. Our presentation follows along the basic lines of Henkin-Polyakov [3], with some simplifications
Geração radiativa de repulsão vetorial para quarks leves
Get PDFDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014Abstract: We apply a non-perturbative analytical method, known as the Optimized PerturbationTheory (OPT), to the Polyakov-Nambu-Jona-Lasinio (PNJL) model in order to investigate physical quantities associated with the QCD phase transitions. We consider the Taylor expansion of the pressure in powers of µ/T obtaining the second cumulant (c2) which is associated to the quark number susceptibility. We discuss how the OPT nite Nc radiative (quantum) corrections induce a contribution to the pressure which behaves as a vector repulsion even when such a channel is absent in the original classical potential. Our results are then compared with the ones furnished by lattice QCD simulations and by the large-Nc approximation showing that, physically, the OPT results resemble those furnished by the latter approximation when a repulsive vector channel is explicitly included in the classical potential. In this case, both approximations fail to correctly describe the Stefan-Boltzmann limit at high temperatures. We discuss how this problem can be circumvented by taking the couplings to be temperature dependent so as to simulate the phenomenon of asymptotic freedom. Since this is the first time the OPT is applied to the PNJL we also discuss many technicalities associated with the evaluation of two loop (exchange) diagrams.Neste trabalho o método analítico não perturbativo conhecido como Teoria de Perturbação Otimizada (OPT) é aplicada ao modelo de Polyakov-Nambu-Jona-Lasinio (PNJL) para que quantidades físicas, associadas com as transições de fase da QCD, possam ser calculadas. A expansão da pressão em potências de µ/T é considerada para obter o segundo cumulante (c2) que é uma quantidade relacionada com a susceptibilidade do número de quarks. Primeiramente discutimos como as correções radiativas de Nc finito geradas pela OPT produzem uma contribuição que se comporta como um termo vetorial repulsivo mesmo quando este tipo de canal está ausente no potencial clássico original. Em seguida, nossos resultados são comparados com aqueles fornecidos pelas simulações na rede e também pela aproximação de Nc grande(LN). Fisicamente, os resultados da OPT são similares aqueles fornecidos pela aproximação LN quando um canal vetorial repulsivo é explicitamente incluido no potencial clássico. Neste caso, nenhuma destas aproximações analíticas produz corretamente o limite de Stefan Boltzmann para altas temperaturas. Contudo, nossos resultados sugerem como estes problemas podem ser contornados tomando-se as constantes de acoplamento como sendo dependentes da temperatura, de maneira que o fenômeno da liberdade assimptótica possa ser simulado. Esta é a primeira vez que a OPT é aplicada ao modelo de PNJL e por isto vários aspectos técnicos relacionados com o cálculo de diagramas de dois laços são também aqui apresentados
Improved implementation of the Alicki–Van Ryn nonclassicality test for a single particle using Si detectors
No full textRecently a test of nonclassicality for a single qubit was proposed [R. Alicki and N. Van Ryn, J. Phys. A: Math. Theor. 41, 062001 (2008)]. We present an optimized experimental realization of this test leading to a 46 standard deviation violation of classicality. This factor of 5 improvement over our previous result was achieved by moving from the infrared to the visible where we can take advantage of higher efficiency and lower noise photon detectors
UV laser-induced electron emission from diamond films coated with ultra thin nickel layer
No full textJETP Letters V. 68, I .08
No full textJETP Letters -- October 25, 1998
Volume 68, Issue 8, pp. 629-684
FIELDS, PARTICLES, AND NUCLEI
Inhibition of the radioactive decay of the isomer 119mSn with the use of Mössbauer backscattering
S. K. Godovikov
Full Text: PDF (75 kB)
Predictions for the forward cone in diffractive deep inelastic scattering
N. N. Nikolaev, A. V. Pronyaev, and B. G. Zakharov
Full Text: PDF (131 kB)
ATOMS, SPECTRA AND RADIATION
Spontaneous emission from an atomic oscillator located near an ideally conducting conical surface
V. V. Klimov
Full Text: PDF (107 kB)
On resonance processes in near-threshold excitation of the resonance lines of a Zn+ ion in electron–ion collisions
A. I. Imre, A. N. Gomonai, V. S. Vukstich, and A. N. Nemet
Full Text: PDF (77 kB)
CONDENSED MATTER
Giant nonlinear optical activity in an aggregated silver nanocomposite
V. P. Drachev, S. V. Perminov, S. G. Rautian, and V. P. Safonov
Full Text: PDF (101 kB)
Low-temperature specific heat of crystalline and amorphous Eu2(MoO4)3
A. V. Pal'nichenko, E. G. Ponyatovskii, B. S. Red'kin, and V. V. Sinitsyn
Full Text: PDF (58 kB)
Self-excitation of 2D plasmons in resonant tunneling diodes
M. N. Feiginov and V. A. Volkov
Full Text: PDF (100 kB)
Magnetoexcitons in type-II quantum dots
A. B. Kalameitsev, V. M. Kovalev, and A. O. Govorov
Full Text: PDF (83 kB)
Mesoscopic superconductivity in superspace
A. F. Andreev
Full Text: PDF (101 kB)
MISCELLANEOUS
Fractal structure of the phase equilibrium curve of a system of two oscillating magnetic moments
F. V. Lisovskii and O. P. Polyakov
Full Text: PDF (82 kB)Archived web conten
JETP Letters V. 68, I .08
No full textleave(s) : ill; 28 cm.JETP Letters -- October 25, 1998
Volume 68, Issue 8, pp. 629-684
FIELDS, PARTICLES, AND NUCLEI
Inhibition of the radioactive decay of the isomer 119mSn with the use of M�_ssbauer backscattering
S. K. Godovikov
Full Text: PDF (75 kB)
Predictions for the forward cone in diffractive deep inelastic scattering
N. N. Nikolaev, A. V. Pronyaev, and B. G. Zakharov
Full Text: PDF (131 kB)
ATOMS, SPECTRA AND RADIATION
Spontaneous emission from an atomic oscillator located near an ideally conducting conical surface
V. V. Klimov
Full Text: PDF (107 kB)
On resonance processes in near-threshold excitation of the resonance lines of a Zn+ ion in electron���ion collisions
A. I. Imre, A. N. Gomonai, V. S. Vukstich, and A. N. Nemet
Full Text: PDF (77 kB)
CONDENSED MATTER
Giant nonlinear optical activity in an aggregated silver nanocomposite
V. P. Drachev, S. V. Perminov, S. G. Rautian, and V. P. Safonov
Full Text: PDF (101 kB)
Low-temperature specific heat of crystalline and amorphous Eu2(MoO4)3
A. V. Pal'nichenko, E. G. Ponyatovskii, B. S. Red'kin, and V. V. Sinitsyn
Full Text: PDF (58 kB)
Self-excitation of 2D plasmons in resonant tunneling diodes
M. N. Feiginov and V. A. Volkov
Full Text: PDF (100 kB)
Magnetoexcitons in type-II quantum dots
A. B. Kalameitsev, V. M. Kovalev, and A. O. Govorov
Full Text: PDF (83 kB)
Mesoscopic superconductivity in superspace
A. F. Andreev
Full Text: PDF (101 kB)
MISCELLANEOUS
Fractal structure of the phase equilibrium curve of a system of two oscillating magnetic moments
F. V. Lisovskii and O. P. Polyakov
Full Text: PDF (82 kB)The content contained herein is maintained and curated by the Preservation Department.This record is revised and maintained by the content administrators from the Cataloging & Metadata Department
Astronomy Letters, V. 27, I. 06
No full textAstronomy Letters -- June 2001
Volume 27, Issue 6, pp. 345-409
The Ursa Major Supercluster of Galaxies: II. The Structure and Peculiar Velocities
F. G. Kopylova and A. I. Kopylov
pp. 345-352 Full Text: PDF (120 kB)
Type Ia Supernovae: An Explosion in the Regime of a Convergent Delayed Detonation Wave
N. V. Dunina-Barkovskaya, V. S. Imshennik, and S. I. Blinnikov
pp. 353-362 Full Text: PDF (200 kB)
Low State of the X-ray Burster SLX 1732-304 in the Globular Cluster Terzan 1 According to RXTE Data
S. V. Molkov, S. A. Grebenev, and A. A. Lutovinov
pp. 363-365 Full Text: PDF (60 kB)
Relativistic Gravitational Collapse of a Cool White Dwarf with Allowance for the Neutronization Kinetics
A. I. Voropinov and M. A. Podurets
pp. 366-375 Full Text: PDF (113 kB)
Detection of Optical Circular Polarization in the Herbig Ae Star WW Vul
D. N. Shakhovskoi, O. S. Shulov, and E. N. Kopatskaya
pp. 376-378 Full Text: PDF (45 kB)
Close Binary Systems in Star-Forming Regions: EQ Ori in the Ori I Association
M. M. Zakirov
pp. 379-385 Full Text: PDF (107 kB)
Hipparcos Trigonometric Parallaxes and the Distance Scale for Open Star Clusters
A. V. Loktin and G. V. Beshenov
pp. 386-390 Full Text: PDF (59 kB)
An Astrometric Study of the Triple Star ADS 48
O. V. Kiyaeva, A. A. Kiselev, E. V. Polyakov, and V. B. Rafal'skii
pp. 391-397 Full Text: PDF (98 kB)
Preliminary Results of the Alignment and Hartmann Tests of the AZT-22 Telescope
Z. Aslan, I. F. Bikmaev, É. A. Vitrichenko, R. I. Gumerov, L. A. Dembo, S. F. Kamus, V. Keskin, U. Kiziloglu, M. N. Pavlinsky, L. N. Panteleev, N. A. Sakhibullin, S. O. Selam, R. A. Sunyaev, I. Khamitov, and A. L. Yaskovich
pp. 398-403 Full Text: PDF (120 kB)
Orbital Evolution of Uranus's New Outer Satellites
M. A. Vashkov'yak
pp. 404-409 Full Text: PDF (159 kB)Archived web conten
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