Results 11 to 20 of about 1,349,480 (242)

Possibility of traversable wormhole formation in the dark matter halo with istropic pressure

European Physical Journal C: Particles and Fields, 2020
We explore the possibility of traversable wormhole formation in the dark matter halos. We obtain the exact solutions of the spherical symmetry traversable wormhole with isotropic pressure condition, based on the Navarro–Frenk–White (NFW), Thomas–Fermi ...
Zhaoyi Xu, Meirong Tang, Gang Cao, Shuang-Nan Zhang   +3 more
doaj   +1 more source

Bearing-Only-Based Formation Circumnavigation Guided by Multiple Unknown Targets

IEEE Access, 2020
In this paper, we consider the problem of the formation circumnavigation on an ellipse guided by multiple unknown targets in two-dimensional space, where each agent only employ bearing measurement without knowing any target's position and velocity.
Shaoheng Chun
doaj   +1 more source

Disseminated Toxoplasma gondii Infection in an Adult Osprey (Pandion haliaetus)

Veterinary Sciences, 2021
An adult female osprey (Pandion haliaetus) was found weak and unable to fly in Auburn, Alabama in August 2019. The bird was captured and submitted to the Southeastern Raptor Center of the Auburn University College of Veterinary Medicine for evaluation ...
Xiaobo Wang, Charles T. Talbot, Ji-Hang Yin, Anwar A. Kalalah, Chengming Wang, Joseph C. Newton   +5 more
doaj   +1 more source

Inhibiting decoherence via ancilla processes [PDF]

, 2002
General conditions are derived for preventing the decoherence of a single two-state quantum system (qubit) in a thermal bath. The employed auxiliary systems required for this purpose are merely assumed to be weak for the general condition while various ...
A.M. Steane, C. Cohen-Tannoudji, C.H. Keitel, C.J. Myatt, Christoph H. Keitel, D. Braun, D. Vitali, D. Vitali, D. Vitali, D.A. Lidar, D.A.R. Dalvit, D.P. DiVincenzo, E. Frishman, E. Paspalakis, G. Alber, G.C. Ghirardi, G.C. Ghirardi, G.S. Agarwal, Guihua Zeng, J.F. Poyatos, L. Duan, L. Viola, L. Viola, L.M. Duan, M. Murao, M.B. Plenio, M.O. Scully, N. Gisin, P. Zanardi, P. Zhou, P.W. Shor, P.W. Shor, R. Bonifacio, S. Chu, S. Schneider, S. Schneider, W.D. Phillips, W.G. Unruh, W.H. Zurek, Z. Haba   +39 more
core   +2 more sources

Binding between two-component bosons in one dimension [PDF]

, 2009
We investigate the ground state of one-dimensional few-atom Bose-Bose mixtures under harmonic confinement throughout the crossover from weak to strong inter-species attraction.
Batchelor M T, Busch T, Eckart M, Emmerich Tempfli, Meyer H-D, Meyer H-D, Peter Schmelcher, Sascha Zöllner, Tempfli E, Worth G A Beck M H Jäckle A Meyer H-D   +9 more
core   +3 more sources

Existence of Electrically Charged Structures with Regular Center in Nonlinear Electrodynamics Minimally Coupled to Gravity

Advances in Mathematical Physics, 2015
We address the question of correct description of Lagrange dynamics for regular electrically charged structures in nonlinear electrodynamics coupled to gravity.
Irina Dymnikova, Evgeny Galaktionov, Eduard Tropp   +2 more
doaj   +1 more source

Relationship between the heterogeneity of low-permeability reservoirs and the dynamic evolution of fractures under uniaxial compression conditions by CT scanning: A case study in the jiyang depression of Bohai Bay Basin, China

Frontiers in Earth Science, 2023
Based on an analysis of core fractures and computed tomography scanning by X-ray under uniaxial compression tests with loading and unloading, this study investigated the three-dimensional evolution of fracture initiation and propagation in different ...
Li Li, Guangyao Shi, Guangyao Shi, Yixin Zhang, Xiangwei Liu   +4 more
doaj   +1 more source

Absence of confinement in the absence of vortices [PDF]

, 1998
We consider the Wilson loop expectation in SU(2) lattice gauge theory in the presence of constraints. The constraints eliminate from the functional measure gauge field configurations whose physical interpretation is that of thick center vortices linking ...
Kovács, T. G., Tomboulis, E. T.
core   +2 more sources

New solutions of Einstein equations in spherical symmetry: the Cosmic Censor to the court [PDF]

, 2002
A new class of solutions of the Einstein field equations in spherical symmetry is found. The new solutions are mathematically described as the metrics admitting separation of variables in area-radius coordinates.
Giambo', Roberto, Giannoni, Fabio, Magli, Giulio, Piccione, Paolo   +3 more
core   +3 more sources

Basic Generic Properties of Regular Rotating Black Holes and Solitons

Advances in Mathematical Physics, 2017
We present a systematic description of the basic generic properties of regular rotating black holes and solitons (compact nonsingular nondissipative objects without horizons related by self-interaction and replacing naked singularities). Rotating objects
Irina Dymnikova, Evgeny Galaktionov
doaj   +1 more source