Article
Astronomy & Astrophysics
S. Deser, Y. Pang
Article
Physics, Multidisciplinary
Mehmet Ozkan, Yi Pang, Utku Zorba
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Particles & Fields
Daniel Butter, Joseph Novak, Mehmet Ozkan, Yi Pang, Gabriele Tartaglino-Mazzucchelli
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Multidisciplinary Sciences
Yi Pang, Ergin Sezgin
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2020)
Article
Astronomy & Astrophysics
H. Lu, Yi Pang
Article
Physics, Particles & Fields
Shi-Fa Guo, Hai-Shan Liu, H. Lue, Yi Pang
Summary: By constructing a class of charged AdS boson star solutions, we found that the leading coefficient c(3/2)(k) exhibits a monotonic increasing behavior with respect to k, showing linear growth when k is small and approaching maximal value with a decreasing rate as k tends to infinity. A closed form expression fitting the numerical data within 10(-4) accuracy for the entire range of k was also obtained.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Shi-Fa Guo, Hong Lu, Yi Pang
Summary: In this study, we analyze charged rotating solutions in both gauged and ungauged minimal supergravities in five dimensions, with a focus on cases where the electric charge Q is proportional to J(2/3). We discover new extremal black objects that are asymptotic to either Minkowski or global AdS spacetimes, best described as degenerate black rings. These objects have a near-horizon geometry of locally AdS(3) x S-2, with two branches of rotating black holes joining to become the same degenerate black ring as the angular momentum increases.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2021)
Article
Physics, Particles & Fields
Liang Ma, Yi Pang, H. Lu
Summary: In this study, non-extremal dyonic string solutions were constructed in 6D minimal supergravity, with higher derivative corrections obtained from either the type IIA string theory or the heterotic string theory. It was found that the α' corrections can affect the attractive force in the isoentropic process near extremality, while not affecting the mass-to-charge ratio. On the other hand, in the isothermal or isoenergetic processes, the α' corrections can enhance the attractive force.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Liang Ma, Yi Pang, H. Lu
Summary: We study the first law of thermodynamics of dyonic black strings carrying linear momentum in type IIA string theory compactified on K3 with alpha' corrections. We find that the naive application of Wald entropy formula leads to two different answers associated with two formulations of the mixed Chern-Simons terms. Neither of them satisfies the first law of thermodynamics for other conserved charges. We resolve this problem by carefully evaluating the full infinitesimal Hamiltonian at both infinity and horizon, and find that an improvement is needed for one of the formulations.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Yu-Peng Wang, Liang Ma, Yi Pang
Summary: We compute the Euclidean action of charged de Sitter black holes in the four-dimensional gravitational Euler-Heisenberg model, and find that it is controlled by the total entropy contributed by the black hole outer horizon and the cosmological horizon. The Euclidean action can be interpreted as the black hole production rate in de Sitter space for smooth configurations. We also observe that the 4-derivative couplings break the symmetry between the production rate of purely electric black holes and purely magnetic black holes, but electromagnetic duality induces a transformation on these couplings, mapping the physical quantities of one type of black hole to the other type while preserving the unitarity constraints.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2023)
Article
Physics, Particles & Fields
Liang Ma, Yi Pang, H. Lu
Summary: In an effective theory of gravity, higher derivative terms contribute to the corrections of thermodynamic quantities of black holes. This paper extends the property of using only the leading order solution to obtain the next to next to leading order corrections. A formula is proposed to compute the Euclidean action of asymptotically flat black holes at the next to next to leading order using the solution up to and including the next to leading order. Other conserved quantities can be derived from the Euclidean action using standard thermodynamic relations. The formula is verified in examples of pure gravity and Einstein-Maxwell theory extended by 4- and 6-derivative terms. Additionally, it is proven that the physical quantities of asymptotically flat black holes are invariant under field redefinitions based on the formula.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Oguzhan Kasikci, Mehmet Ozkan, Yi Pang
Summary: We propose that models with spacetime subsystem symmetry are connected to Lorentz invariant models via the Carrollian limit. In this way, the recently proposed model with spacetime subsystem symmetry can be reproduced along with its conserved charges. We then couple this model to a dynamical Abelian gauge field and Carroll gravity. Our procedure is applicable in arbitrary dimensions and paves the way for constructing new models with spacetime subsystem symmetry.
Article
Astronomy & Astrophysics
Yi Pang
Summary: This study focuses on computing the macroscopic entropy of supersymmetric rotating dyonic strings carrying linear momentum in 6D (1, 0) supergravity with curvature squared corrections. The calculation is based on Sen's entropy function formalism and shows that the two independent supersymmetric completions of Riemann tensor squared contribute equally to the entropy. Additionally, further compactification of the 6D theory results in a matter coupled 3D supergravity model where the dilaton is unaffected by higher derivative interactions beyond supersymmetric curvature squared terms.
Article
Astronomy & Astrophysics
Hai-Shan Liu, Hong Lu, Yi Pang
Article
Astronomy & Astrophysics
David D. K. Chow, Yi Pang
