Results 141 to 150 of about 681 (164)

The Information Loss Problem and Hawking Radiation as Tunneling. [PDF]

Entropy (Basel)
Zhang B, Corda C, Cai Q.
europepmc   +1 more source

Neural geometrodynamics, complexity, and plasticity: a psychedelics perspective

, 2023
Ruffini G, Lopez-Sola E, Vohryzek J, Sanchez-Todo R.   +3 more
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Quantum Electrodynamics from Quantum Cellular Automata, and the Tension Between Symmetry, Locality, and Positive Energy. [PDF]

Entropy (Basel)
Brun TA, Mlodinow L.
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Status of Electromagnetically Accelerating Universe. [PDF]

Entropy (Basel)
Frampton PH.
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From conformal infinity to equations of motion: conserved quantities in general relativity. [PDF]

Philos Trans A Math Phys Eng Sci
Penrose R.
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Strings falling into spacetime singularities

Physical Review D, 1992
We study the dynamics of strings near spacetime singularities. We consider gravitational-wave backgrounds with a singularity of the type {vert bar}{ital U}{vert bar}{sup {minus}{beta}}, {ital U} being a null coordinate. (The case with a {delta}({ital U}) shock-wave singularity turns out to be similar to the {beta}=1 case.) New features in the string ...
de Vega, Héctor J., Sánchez, Norma G.
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Spacetime singularities in string theory

Physical Review Letters, 1990
Summary: It is shown that a large class of time-dependent solutions to Einstein's equation are classical solutions to string theory. These include metrics with large curvature and some with spacetime singularities. Unlike the case of orbifold singularities, it is shown that string propagation through the singluar region is not well behaved.
Horowitz, Gary T., Steif, Alan R.
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QUANTUM SINGULARITY OF QUASIREGULAR SPACETIMES

The Ninth Marcel Grossmann Meeting, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Konkowski, D. A., Helliwell, T. M.
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No more spacetime singularities?

General Relativity and Gravitation, 1994
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Kostelecký, V. Alan, Perry, Malcolm
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On singularity-free spacetimes

Pramana, 1995
We consider here the metric for the singularity-free family of fluid models. The metric is unique for cylindrically symmetric space-time with metric potentials being separable functions of radial and time coordinates in the comoving coordinates. It turns out that fluid models separate out into two classes, withρ ≠µp in general butρ = 3p in particular ...
Naresh Dadhich, L K Patel, R Tikekar
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