Zobrazeno 1 - 10
of 67
pro vyhledávání: '"McGady, David A."'
Publikováno v:
JHEP 10 (2021) 072
Particle-antiparticle pairs can be produced by background electric fields via the Schwinger mechanism provided they are unconfined. If, as in QED in (3+1)-$d$ these particles are massive, the particle production rate is exponentially suppressed below
Externí odkaz:
http://arxiv.org/abs/2012.15824
Publikováno v:
Phys. Rev. D 103, 055014 (2021)
Conventional lore from Tremaine and Gunn excludes fermionic dark matter lighter than a few hundred eV, based on the Pauli exclusion principle. We highlight a simple way of evading this bound with a large number of species that leads to numerous non-t
Externí odkaz:
http://arxiv.org/abs/2008.06505
Publikováno v:
Phys. Rev. D 102, 026016 (2020)
Black holes of sufficiently large initial radius are expected to be well described by a semiclassical analysis at least until half of their initial mass has evaporated away. For a small number of spacetime dimensions, this holds as long as the black
Externí odkaz:
http://arxiv.org/abs/1908.08083
Autor:
McGady, David A.
In this paper, we present robust evidence that general finite temperature quantum field theory (QFT) path integrals are invariant under reflecting temperatures to negative values (T-reflection), up to a possible anomaly phase. Our main focus is on tw
Externí odkaz:
http://arxiv.org/abs/1806.09873
Autor:
McGady, David A.
Publikováno v:
JHEP 1901 (2019) 135
We define L-functions for meromorphic modular forms that are regular at cusps, and use them to: (i) find new relationships between Hurwitz class numbers and traces of singular moduli, (ii) establish predictions from the physics of T-reflection, and (
Externí odkaz:
http://arxiv.org/abs/1806.09874
Autor:
Duncan, John F. R., McGady, David A.
We formulate a notion of modular form on the double half-plane for half-integral weights and explain its relationship to the usual notion of modular form. The construction we provide is compatible with certain physical considerations due to the secon
Externí odkaz:
http://arxiv.org/abs/1806.09875
Autor:
McGady, David A.
In this paper, we revisit the claim that many partition functions are invariant under reflecting temperatures to negative values (T-reflection). The goal of this paper is to demarcate which partition functions should be invariant under T-reflection,
Externí odkaz:
http://arxiv.org/abs/1711.07536
Autor:
McGady, David A., Brogård, Jon
In this paper, we study Schwinger pair production of charged massless particles in constant electric fields of finite-extent. Exploiting a map from the Dirac and Klein-Gordon equation to the harmonic oscillator, we find exact pair production rates fo
Externí odkaz:
http://arxiv.org/abs/1711.03504
Publikováno v:
JHEP 06:095,2016
We consider asymptotically-free four-dimensional large-$N$ gauge theories with massive fermionic and bosonic adjoint matter fields, compactified on squashed three-spheres, and examine their regularized large-$N$ confined-phase spectral sums. The anal
Externí odkaz:
http://arxiv.org/abs/1512.09119
In recent work, we demonstrated that the confined-phase spectrum of non-supersymmetric pure Yang-Mills theory coincides with the spectrum of the chiral sector of a two-dimensional conformal field theory in the large-$N$ limit. This was done within th
Externí odkaz:
http://arxiv.org/abs/1512.07918