Results 131 to 140 of about 120,404 (314)
Hawking radiation power equations for black holes
Nuclear Physics B, 2017 We derive the Hawking radiation power equations for black holes in asymptotically flat, asymptotically Anti-de Sitter (AdS) and asymptotically de Sitter (dS) black holes. This is done by using the greybody factor for these black holes.
Ravi Mistry +3 more
doaj +1 more source
Smooth supergravity solutions and string states [PDF]
, 2005 In this thesis we study smooth supergravity solutions and their relation to string theory in two different contexts; quotient spaces and asymptotically flat solitonic solutions.
Madden, Owen Francis
core
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Nuclear Physics B, 1986 Abstract We give a new derivation for the properties of radiation appearing to an observer bounded in a space-time domain that has a horizon; this includes the Rindler case (constant accelerating frame) and the Schwarzschild solution (black hole). Because of the global nature of the quantum state, which inevitably extends to space beyond the horizon,
openaire +1 more source
Black Hole Accretion and Spin-up through Stellar Collisions in Dense Star Clusters
The Astrophysical JournalDynamical interactions in dense star clusters could significantly influence the properties of black holes, leaving imprints on their gravitational-wave signatures.
Fulya Kıroğlu +4 more
doaj +1 more source
Phase transition and heat engine efficiency of phantom AdS black holes
European Physical Journal C: Particles and Fields, 2018 Phase transition and heat engine efficiency of phantom AdS black holes are investigated with peculiar properties found. In the non-extended phase space, we probe the possibility of T–S criticality in both the canonical ensemble and grand-canonical ...
Jie-Xiong Mo, Shan-Quan Lan
doaj +1 more source
Comment on “Black Hole Entropy: A Closer Look”
, 2020 In a recent paper (Entropy 2020, 22(1), 17), Tsallis states that entropy—as in Shannon or Kullback–Leiber’s definitions—is inadequate to interpret black hole entropy and suggests that a new non-additive functional should take the role of entropy. Here we
Pedro Pessoa +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi +8 more
wiley +1 more source
Topological dyonic black holes of massive gravity with generalized quasitopological electromagnetism
European Physical Journal C: Particles and FieldsIn this paper we investigate new dyonic black holes of massive gravity sourced by generalized quasitopological electromagnetism in arbitrary dimensions. We begin by deriving the exact solution to the field equations defining these black holes and look at
Askar Ali, Ali Övgün
doaj +1 more source
Thermal duality: nemesis of black holes?
, 2015 This talk presents evidence supporting a conjecture that there are no black holes in M theory. We will show that a mechanism to prevent black hole formation is needed in 4 dimensions to make string theory a viable high energy model of quantum gravity ...
Hewitt, M.
core