Results 21 to 30 of about 34,505 (198)
Discreteness of space from GUP in a weak gravitational field
Quantum gravity effects modify the Heisenberg's uncertainty principle to a generalized uncertainty principle (GUP). Earlier work showed that the GUP-induced corrections to the Schrödinger equation, when applied to a non-relativistic particle in a one ...
Soumen Deb, Saurya Das, Elias C. Vagenas
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Celestial holography proposes a duality between gravitational scattering in asymptotically flat space-time and a conformal field theory living on the celestial sphere.
Sabrina Pasterski, Herman Verlinde
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Quantum Creation of Black Hole by Tunneling in Scalar Field Collapse [PDF]
Continuously self-similar solution of spherically symmetric gravitational collapse of a scalar field is studied to investigate quantum mechanical black hole formation by tunneling in the subcritical case where, classically, the collapse does not produce ...
A. V. Frolov +17 more
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Composite higher derivative theory of gravity
We investigate a higher derivative theory that belongs to the class of composite field theories. Starting from the Yang-Mills theory based on the Lorentz group, we express the gauge vector fields in terms of the tetrad decomposition of a space-time ...
Hans Christian Öttinger
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Gravitational production of vector dark matter
A model of vector dark matter that communicates with the Standard Model only through gravitational interactions has been investigated. It has been shown in detail how does the canonical quantization of the vector field in varying FLRW geometry implies a ...
Aqeel Ahmed +2 more
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Topological orders are a prominent paradigm for describing quantum many-body systems without symmetry-breaking orders. We present a topological quantum field theoretical (TQFT) study on topological orders in five-dimensional spacetime (5D) in which ...
Zhi-Feng Zhang, Peng Ye
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Intelligent Parameter Identification for Robot Servo Controller Based on Improved Integration Method
With the rise of smart robots in the field of industrial automation, the motion control theory of the robot servo controller has become a research hotspot.
Ye Li, Dazhi Wang, Shuai Zhou, Xian Wang
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Amplitudes on plane waves from ambitwistor strings
In marked contrast to conventional string theory, ambitwistor strings remain solvable worldsheet theories when coupled to curved background fields. We use this fact to consider the quantization of ambitwistor strings on plane wave metric and plane wave ...
Tim Adamo +3 more
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Midi-Superspace Quantization of Non-Compact Toroidally Symmetric Gravity [PDF]
We consider the quantization of the midi-superspace associated with a class of spacetimes with toroidal isometries, but without the compact spatial hypersurfaces of the well-known Gowdy models.
Beetle, Christopher
core +3 more sources
Inclusion of matter in inhomogeneous loop quantum cosmology [PDF]
We study the hybrid quantization of the linearly polarized Gowdy $T^3$ model with a massless scalar field with the same symmetries as the metric. For simplicity, we quantize its restriction to the model with local rotational symmetry.
Blas, Daniel Martín-de +2 more
core +3 more sources

