Results 91 to 100 of about 95,179 (254)

Black holes and solitons in string theory [PDF]

Physics Reports, 1999
We review various aspects of classical solutions in string theories. Emphasis is placed on their supersymmetry properties, their special roles in string dualities and microscopic interpretations. Topics include black hole solutions in string theories on tori and N=2 supergravity theories; p-branes; microscopic interpretation of black hole entropy.
openaire   +2 more sources

d‐Wave Fermi Surface Instability in the Nematic Phase of Two Monolayer FeSe/SrTiO3

Advanced Science, Volume 13, Issue 7, 3 February 2026.
Angle‐resolved photoemission spectroscopy reveals a d‐wave nematic order in two‐monolayer FeSe/SrTiO3, showing degenerate dxz/dyz bands at Γ but a pronounced splitting at M. This momentum‐dependent anisotropy identifies the nematicity as a d‐wave Fermi surface (Pomeranchuk) instability, highlighting 2D FeSe as a model platform to explore the interplay ...
C. Y. Tang, X.‐L. Peng, Y.‐H. Yuan, P. Zhang, G.‐N. Phan, S.‐Y. Gao, Y.‐B. Huang, L.‐Y. Kong, T. Qian, W. Li, Q.‐K. Xue, Z.‐Q. Wang, K. Jiang, Y.‐J. Sun, H. Ding   +14 more
wiley   +1 more source

Non-supersymmetric black holes with α′ corrections

Journal of High Energy Physics, 2022
We study extremal 5- and 4-dimensional black hole solutions of the Heterotic Superstring effective action at first order in α′ with, respectively, 3 and 4 charges of arbitrary signs.
Pablo A. Cano, Tomás Ortín, Alejandro Ruipérez, Matteo Zatti   +3 more
doaj   +1 more source

Quantum black holes in Type-IIA String Theory [PDF]

Journal of High Energy Physics, 2013
We study black hole solutions of Type-IIA Calabi-Yau compactifications in the presence of perturbative quantum corrections. We define a class of black holes that only exist in the presence of quantum corrections and that, consequently, can be considered as purely quantum black holes.
Bueno, P, Davies, R, Shahbazi, C
openaire   +4 more sources

BURIED ORNAMENTS: EXPLORING FUNERARY BEHAVIOURS IN THE CHALCOLITHIC FROM THE LOWER DANUBE

Oxford Journal of Archaeology, Volume 45, Issue 1, Page 2-27, February 2026.
Summary This article focuses on personal adornments found in Chalcolithic funerary contexts from the Lower Danube. Generally, these artefacts are made from exotic raw materials originating from the Mediterranean sea, particularly Spondylus shells, along with Glycymeris or Antalis shells, and less frequently from local materials.
Monica Mărgărit
wiley   +1 more source

Light Up a Nanocluster

Aggregate, Volume 7, Issue 1, January 2026.
Atomically precise metal nanoclusters are ultrasmall aggregates of metal atoms with finely tunable structures. They exhibit broad PL across visible to NIR wavelengths by tuning size, structure, and composition. The review addresses fundamental emission mechanisms and structure–property correlations, evaluating enhancement strategies (ligand ...
Xiuling Guo, Kaiyue Liu, Chaoqun Zheng, Along Ma, Shuxin Wang   +4 more
wiley   +1 more source

Black Hole Emission in String Theory and the String Phase of Black Holes [PDF]

, 2001
String theory properly describes black-hole evaporation. The quantum string emission by Black Holes is computed. The black-hole temperature is the Hawking temperature in the semiclassical quantum field theory (QFT) regime and becomes the intrinsic string
CO Lousto, DN Page, GW Gibbons, HJ Vega de, JM Bardeen, K Huang, MJ Bowick, MR Medrano, MR Medrano, N Sánchez, ND Birrell, R Hagedorn, RD Carlitz, SW Hawking, VP Frolov   +14 more
core   +5 more sources

Quantum GraviElectro Dynamics

Annalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

Non-spinning tops are stable

Journal of High Energy Physics
We consider coupled gravitational and electromagnetic perturbations of a family of five-dimensional Einstein-Maxwell solutions that describes both magnetized black strings and horizonless topological stars.
Iosif Bena, Giorgio Di Russo, Jose Francisco Morales, Alejandro Ruipérez   +3 more
doaj   +1 more source

Maxwell’s equations in the Myers-Perry geometry

Journal of High Energy Physics, 2017
We demonstrate separability of the Maxwell’s equations in the Myers-Perry-(A)dS geometry and derive explicit solutions for various polarizations. Application of our construction to the four-dimensional Kerr black hole leads to a new ansatz for the ...
Oleg Lunin
doaj   +1 more source