Results 11 to 20 of about 51,172 (265)
Generalized scalar field potentials and inflation [PDF]
Physical Review D, 1995 19 Pages, LATEX.
Parsons, Paul, Barrow, John D.
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Extend Bekenstein’s theorem to Einstein–Maxwell-scalar theories with a scalar potential
European Physical Journal C: Particles and Fields, 2022 The Bekenstein’s theorem allows us to generate an Einstein-conformal scalar solution from a single Einstein-ordinary scalar solution. In this article, we extend this theorem to the Einstein–Maxwell-scalar (EMS) theory with a non-minimal coupling between ...
Jianhui Qiu, Changjun Gao
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Loop corrections to scalar quintessence potentials [PDF]
Physical Review D, 2002 Contributed to XXXVIIth Rencontres de Moriond Workshop on "The Cosmological Model", Les Arcs, France, 16-23 March ...
Doran, M., Jaeckel, J.
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Gravitational positivity bounds on scalar potentials [PDF]
Physical Review D, 2021 We derive constraints on scalar field theories coupled to gravity by using recently developed positivity bounds in the presence of gravity. It is found that a canonically-normalized real scalar cannot have an arbitrarily flat potential unless some new physics enters well below the Planck scale.
Toshifumi Noumi, Junsei Tokuda
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BASIC DONKIN'S DIFFERENTIAL OPERATORS FOR HOMOGENEOUS HARMONIC FUNCTIONS
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019 It is shown that there are the differential operators that transform three-dimensional homogeneous harmonic functions into new three-dimensional homogeneous harmonic functions.
Berdnikov Alexander +3 more
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GENERALIZATION OF THE THOMSON FORMULA FOR HARMONIC FUNCTIONS OF A GENERAL TYPE
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019 It is shown that the Thomson formula for three-dimensional harmonic functions is unique. Namely, there are no other formulas of this type, with the exception of the trivial change of variables in the form of shifts, reflections, rotations and stretching ...
Berdnikov Alexander +3 more
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Global strain-induced scalar potential in graphene devices
Communications Physics, 2021 The electrical and optical properties of a material depend strongly on the details of its crystal structure. Here, the authors report a technique to mechanically deform the lattice of monolayer graphene with strain, and electrically detect the generation
Lujun Wang +8 more
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DONKIN'S DIFFERENTIAL OPERATORS FOR HOMOGENEOUS HARMONIC FUNCTIONS
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019 The work continues the study of Donkin operators for homogeneous harmonic functions. Previously, a basic list of such first-order operators for three-dimensional harmonic functions was obtained.
Berdnikov Alexander +3 more
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Quantum corrections to slow-roll inflation: scalar and tensor modes
Journal of High Energy Physics, 2021 Inflation is often described through the dynamics of a scalar field, slow-rolling in a suitable potential. Ultimately, this inflaton must be identified with the expectation value of a quantum field, evolving in a quantum effective potential. The shape of
Jens O. Andersen +2 more
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GENERALIZATION OF THE THOMSON FORMULA FOR HOMOGENEOUS HARMONIC FUNCTIONS
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019 It is shown that the Thomson formula for three-dimensional harmonic homogeneous functions can be generalized if, instead of purely algebraic linear expressions, one uses a linear algebraic form with the participation of the first order partial ...
Berdnikov Alexander +3 more
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