Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Andrew D. Gasbarro"'
Autor:
Oliver Witzel, Anna Hasenfratz, Xiao-Yong Jin, Andrew D. Gasbarro, Ethan T. Neil, Richard C. Brower, Pavlos Vranas, Enrico Rinaldi, David Schaich, James C. Osborn, G. T. Fleming, Kimmy K. Cushman, Claudio Rebbi, Graham D. Kribs
Publikováno v:
Brower, R. C.; Cushman, K.; Fleming, G. T.; Gasbarro, A.; Hasenfratz, A.; Jin, X. Y.; Kribs, G. D.; Neil, E. T.; Osborn, J. C.; Rebbi, C.; Rinaldi, E.; Schaich, D.; Vranas, P.; Witzel, O. (2021). Stealth dark matter confinement transition and gravitational waves. Physical review. D-particles, fields, gravitation, and cosmology, 103(1), 014505. American Physical Society 10.1103/PhysRevD.103.014505
PHYSICAL REVIEW D
Physical Review
PHYSICAL REVIEW D
Physical Review
We use non-perturbative lattice calculations to investigate the finite-temperature confinement transition of stealth dark matter, focusing on the regime in which this early-universe transition is first order and would generate a stochastic background
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::879740eee8e6a7660a260830355fbefa
https://boris.unibe.ch/151873/1/PhysRevD.103.014505.pdf
https://boris.unibe.ch/151873/1/PhysRevD.103.014505.pdf
Autor:
Timothy G. Raben, Richard C. Brower, Andrew D. Gasbarro, Dean Howarth, George T. Fleming, Chung-I Tan, Evan S Weinberg
Publikováno v:
Physical Review
Brower, Richard C.; Fleming, George T.; Gasbarro, Andrew David D.; Howarth, Dean; Raben, Timothy G.; Tan, Chung-I; Weinberg, Evan S. (2021). Radial lattice quantization of 3D ϕ 4 field theory. Physical review. D-particles, fields, gravitation, and cosmology, 104(9), 094502. American Physical Society 10.1103/PhysRevD.104.094502
Brower, Richard C.; Fleming, George T.; Gasbarro, Andrew David D.; Howarth, Dean; Raben, Timothy G.; Tan, Chung-I; Weinberg, Evan S. (2021). Radial lattice quantization of 3D ϕ 4 field theory. Physical review. D-particles, fields, gravitation, and cosmology, 104(9), 094502. American Physical Society 10.1103/PhysRevD.104.094502
The quantum extension of classical finite elements, referred to as quantum finite elements ({\bf QFE})~\cite{Brower:2018szu,Brower:2016vsl}, is applied to the radial quantization of 3d $\phi^4$ theory on a simplicial lattice for the $\mathbb R \times
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d5f367b6313154dc0d5048018c5e43e
http://arxiv.org/abs/2006.15636
http://arxiv.org/abs/2006.15636
Autor:
Richard C. Brower, Evan Weinberg, George T. Fleming, Michael Cheng, Chung-I Tan, Andrew D. Gasbarro, Timothy Raben
Publikováno v:
Physical Review D. 98
We present a method for defining a lattice realization of the ${\ensuremath{\phi}}^{4}$ quantum field theory on a simplicial complex in order to enable numerical computation on a general Riemann manifold. The procedure begins with adopting methods fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::100f14f75dd3d925661ed18823d169e4
https://doi.org/10.1103/physrevd.98.014502
https://doi.org/10.1103/physrevd.98.014502
Autor:
Andrew D. Gasbarro, George T. Fleming
Publikováno v:
Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016).
We report on an investigation into the low energy dynamics of walking gauge theory. Taking $SU(3)$ Yang Mills with eight flavors of fundamental fermions as an example, we discuss the light flavor singlet scalar appearing in the spectrum and its impli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3dcbace2863819c2372aad19d140a4b
https://doi.org/10.22323/1.256.0242
https://doi.org/10.22323/1.256.0242
Autor:
Andrew D. Gasbarro
Publikováno v:
EPJ Web of Conferences, Vol 175, p 08024 (2018)
In recent years, many investigations of confining Yang Mills gauge theories near the edge of the conformal window have been carried out using lattice techniques. These studies have revealed that the spectrum of hadrons in nearly conformal ("walking")
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99d529638ad77de80188999089a97e34
Autor:
Ivan Bazarov, Andrew D. Gasbarro
Publikováno v:
Journal of Synchrotron Radiation. 21:289-299
In an effort to provide a computationally convenient approach to the characterization of partially coherent synchrotron radiation in phase space, a thorough discussion of the minimum dimensionality of the Wigner distribution function for rotationally
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecb706a9f98597bf2d2ea7e65efb908c
https://doi.org/10.1107/s1600577514000277
https://doi.org/10.1107/s1600577514000277
Autor:
Richard C. Brower, George T. Fleming, Andrew D. Gasbarro, Chung-I Tan, Timothy Raben, Evan Weinberg
The lattice Dirac equation is formulated on a simplicial complex which approximates a smooth Riemann manifold by introducing a lattice vierbein on each site and a lattice spin connection on each link. Care is taken so the construction applies to any
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41ce07653dafe8f0fc56951860bdf2a5
http://arxiv.org/abs/1610.08587
http://arxiv.org/abs/1610.08587
Autor:
Chung-I Tan, Timothy Raben, Andrew D. Gasbarro, Richard C. Brower, Evan Weinberg, George T. Fleming
Publikováno v:
Proceedings of The 33rd International Symposium on Lattice Field Theory — PoS(LATTICE 2015).
Viable non-perturbative methods for lattice quantum field theories on curved manifolds are difficult. By adapting features from the traditional finite element methods (FEM) and Regge Calculus, a new simplicial lattice Quantum Finite Element (QFE) Lag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c7cf6d483c7916bd373abf4e67f9f54
https://doi.org/10.22323/1.251.0296
https://doi.org/10.22323/1.251.0296