Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Sophia S. Chabysheva"'
Autor:
Sophia S. Chabysheva, John R. Hiller
Publikováno v:
Physical Review
We compute an effective potential between two fixed sources in light-front quantization of a quenched scalar Yukawa theory that models the interaction of complex scalar fields through the exchange of a neutral scalar. Despite the breaking of explicit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2bc6521c1208052da3b5add0aa254b3
https://doi.org/10.1103/physrevd.105.056027
https://doi.org/10.1103/physrevd.105.056027
Publikováno v:
Physical Review
We explore the convergence of the light-front coupled-cluster (LFCC) method in the context of two-dimensional quenched scalar Yukawa theory. This theory is simple enough for higher-order LFCC calculations to be relatively straightforward. The quenchi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05acc5ae69d980850e4f725856ae3178
Autor:
Sophia S. Chabysheva, John R. Hiller
Publikováno v:
Physical Review
We use the interpolating coordinates studied by Hornbostel to investigate a transition from equal-time quantization to light-front quantization, in the context of two-dimensional $\phi^4$ theory. A consistent treatment is found to require careful con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5e33a944f07f4b34597eacf14ddca03
http://arxiv.org/abs/1811.01685
http://arxiv.org/abs/1811.01685
We solve the relativistic Klein--Gordon equation for a light particle gravitationally bound to a heavy central mass, with the gravitational interaction prescribed by the metric of a spherically symmetric space-time. Metrics are considered for an impe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b625d3771705bd19550f139c35f640a3
Autor:
Sophia S. Chabysheva
Publikováno v:
Few-Body Systems. 56:401-406
We use the light-front coupled-cluster (LFCC) method to compute the odd-parity massive eigenstate of $\phi_{1+1}^4$ theory. A standard Fock-space truncation of the eigenstate yields a finite set of linear equations for a finite number of wave functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7c4bcb755c935fa5663e2eaee1f03f
https://doi.org/10.1007/s00601-014-0930-3
https://doi.org/10.1007/s00601-014-0930-3
Autor:
Sophia S. Chabysheva
Publikováno v:
Few-Body Systems. 55:479-484
We extend the light-front coupled-cluster (LFCC) method to include zero modes explicitly, in order to be able to compute vacuum structure in theories with symmetry breaking. Applications to phi^3 and phi^4 theories are discussed as illustrations and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea21f0d7c208e0194220244a69d2b539
https://doi.org/10.1007/s00601-014-0884-5
https://doi.org/10.1007/s00601-014-0884-5
Autor:
John R. Hiller, Sophia S. Chabysheva
Publikováno v:
Annals of Physics. 340:188-204
The light-front coupled-cluster (LFCC) method is a technique for solving Hamiltonian eigenvalue problems in light-front-quantized field theories. Its primary purpose is to provide a systematic sequence of solvable approximations to the original eigen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91678260705b635736e6b61edcecacd1
https://doi.org/10.1016/j.aop.2013.10.016
https://doi.org/10.1016/j.aop.2013.10.016
Autor:
Sophia S. Chabysheva, John R. Hiller
As an extension of recent work on two-dimensional light-front $\phi^4$ theory, we implement Fock-sector dependence for the bare mass. Such dependence should have important consequences for the convergence of nonperturbative calculations with respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::733781c484e821f887c4b96f101fda35
http://arxiv.org/abs/1612.09331
http://arxiv.org/abs/1612.09331
We study the lowest-mass eigenstates of $\phi^4_{1+1}$ theory with both odd and even numbers of constituents. The calculation is carried out as a diagonalization of the light-front Hamiltonian in a Fock-space representation. In each Fock sector a ful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee0189e0940f8792daaa32d3a055d175
http://arxiv.org/abs/1607.00026
http://arxiv.org/abs/1607.00026
Autor:
Sophia S. Chabysheva, John R. Hiller
Publikováno v:
Physics Letters B. 711:417-422
We propose a new method for the nonperturbative solution of quantum field theories and illustrate its use in the context of a light-front analog to the Greenberg--Schweber model. The method is based on light-front quantization and uses the exponentia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00abfe32a412b410d59c3dd1127ca9ec
https://doi.org/10.1016/j.physletb.2012.04.032
https://doi.org/10.1016/j.physletb.2012.04.032