1,738 research outputs found
Bringing Together Gravity and the Quanta
Due to its underlying gauge structure, teleparallel gravity achieves a
separation between inertial and gravitational effects. It can, in consequence,
describe the isolated gravitational interaction without resorting to the
equivalence principle, and is able to provide a tensorial definition for the
energy-momentum density of the gravitational field. Considering the conceptual
conflict between the local equivalence principle and the nonlocal uncertainty
principle, the replacement of general relativity by its teleparallel equivalent
can be considered an important step towards a prospective reconciliation
between gravitation and quantum mechanics.Comment: 9 pages. Contribution to the proceedings of the Albert Einstein
Century International Conference, Paris, 18-22 July, 200
Scintillation observations at Ancon and Jicamarca Observatories
Satellite scintillation and diffraction pattern scale size distribution from ionospheric irregularitie
Reply to the comment on the letter "Geometric Origin of the Tennis Racket Effect"
The author of the comment~[arXiv:2302.04190] criticizes our published results
in Phys. Rev. Lett. \textbf{125}, 064301 (2020) about the Tennis Racket Effect
(TRE). The TRE is a geometric effect which occurs in the free rotation of any
asymmetric rigid body. We explain why the criticism of this comment is not
valid.Comment: 3 page
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Concentration of Random-Coding Error Exponents
This paper studies the error exponent of i.i.d. randomly generated codes used for transmission over discrete memoryless channels with maximum likelihood decoding. Specifically, this paper shows that the error exponent of a code, defined as the negative normalized logarithm of the probability of error, converges in probability to the typical error exponent. For high rates, the result is a consequence of the fact that the random-coding error exponent and the sphere-packing error exponent coincide. For low rates, instead, the proof of convergence is based on the fact that the union bound accurately characterizes the probability of error
Signatures of physical constraints in rotating rigid bodies
We study signatures of physical constraints on free rotations of rigid
bodies. We show analytically that the physical or non-physical nature of the
moments of inertia of a system can be detected by qualitative changes both in
the Montgomery Phase and in the Tennis Racket Effect.Comment: 28 pages, 8 figure
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