Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Sun, Guanhao"'
Autor:
Sun, Guanhao
Symmetry has played a crucial role in our understanding of physical systems. In this thesis, we review several works based on investigating the symmetry properties of theories. We examine and improve the Noether's theorem and the coset construction,
Autor:
Hui, Lam, Law, Y. T. Albert, Santoni, Luca, Sun, Guanhao, Tomaselli, Giovanni Maria, Trincherini, Enrico
Studies of black hole superradiance often focus on the growth of a cloud in isolation, accompanied by the spin-down of the black hole. In this paper, we consider the additional effect of the accretion of matter and angular momentum from the environme
Externí odkaz:
http://arxiv.org/abs/2208.06408
We exploit an ambiguity somewhat hidden in Noether's theorem to derive systematically, for relativistic field theories, the stress-energy tensor's improvement terms that are associated with additional spacetime symmetries beyond translations. We work
Externí odkaz:
http://arxiv.org/abs/2201.11128
The near vanishing of the cosmological constant is one of the most puzzling open problems in theoretical physics. We consider a system, the so-called framid, that features a technically similar problem. Its stress-energy tensor has a Lorentz-invarian
Externí odkaz:
http://arxiv.org/abs/2101.11620
Autor:
Nicolis, Alberto, Sun, Guanhao
We study the mixed scalar-tensor two-point function in icosahedral inflation. Within the regime of validity of the effective field theory, this has to be perturbatively small; in particular, much smaller than the scalar spectrum. However, it can be m
Externí odkaz:
http://arxiv.org/abs/2011.04687
Autor:
Landry, Michael J., Sun, Guanhao
When a Poincar\'e-invariant system spontaneously breaks continuous internal symmetries, Goldstones's theorem demands the existence of massless, spin-zero excitations in a one-to-one correspondence with the broken symmetry generators. When a system sp
Externí odkaz:
http://arxiv.org/abs/2010.11191
The PYTHIA 6 Monte Carlo (MC) event generator, commonly used in collider physics, is interfaced for the first time with a fast transport simulation of a hydrogen atmosphere, with the same density as air, in order to study the properties of extended a
Externí odkaz:
http://arxiv.org/abs/1809.06406
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Akademický článek
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Publikováno v:
European Review. 29:781-793
Given its special geographical location and size, Shanghai is a key hub linking world and locality, in this case China, in the implementation of anti-Covid-19 measures. By coordinating all the work according to the rule of law, Shanghai has outlined