Journal articles on the topic 'Classicalization'

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1

Vikman, Alexander. "Suppressing quantum fluctuations in classicalization." EPL (Europhysics Letters) 101, no. 3 (January 28, 2013): 34001. http://dx.doi.org/10.1209/0295-5075/101/34001.

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2

Brouzakis, N., J. Rizos, and N. Tetradis. "On the dynamics of classicalization." Physics Letters B 708, no. 1-2 (February 2012): 170–73. http://dx.doi.org/10.1016/j.physletb.2012.01.011.

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3

Dvali, Gia, and David Pirtskhalava. "Dynamics of unitarization by classicalization." Physics Letters B 699, no. 1-2 (May 2011): 78–86. http://dx.doi.org/10.1016/j.physletb.2011.03.054.

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4

Bolaños, Marduk. "Classicalization by phase space measurements." European Journal of Physics 39, no. 3 (March 26, 2018): 035405. http://dx.doi.org/10.1088/1361-6404/aab340.

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5

Percacci, R., and L. Rachwał. "On classicalization in nonlinear sigma models." Physics Letters B 711, no. 2 (May 2012): 184–89. http://dx.doi.org/10.1016/j.physletb.2012.03.073.

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6

Dvali, Gia, and Cesar Gomez. "Ultra-high energy probes of classicalization." Journal of Cosmology and Astroparticle Physics 2012, no. 07 (July 6, 2012): 015. http://dx.doi.org/10.1088/1475-7516/2012/07/015.

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7

Addazi, Andrea. "Unitarization and causalization of nonlocal quantum field theories by classicalization." International Journal of Modern Physics A 31, no. 04n05 (February 3, 2016): 1650009. http://dx.doi.org/10.1142/s0217751x16500093.

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We suggest that classicalization can cure nonlocal quantum field theories from acausal divergences in scattering amplitudes, restoring unitarity and causality. In particular, in “trans-nonlocal” limit, the formation of nonperturbative classical configurations, called classicalons, in scatterings like [Formula: see text], can avoid typical acausal divergences.
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8

Kubotani, H., T. Uesugi, M. Morikawa, and A. Sugamoto. "Classicalization of Quantum Fluctuation in Inflationary Universe." Progress of Theoretical Physics 98, no. 5 (November 1, 1997): 1063–79. http://dx.doi.org/10.1143/ptp.98.1063.

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9

Koide, T. "Classicalization of quantum variables and quantum–classical hybrids." Physics Letters A 379, no. 36 (September 2015): 2007–12. http://dx.doi.org/10.1016/j.physleta.2015.06.031.

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10

Dvali, G., C. Gomez, R. S. Isermann, D. Lüst, and S. Stieberger. "Black hole formation and classicalization in ultra-Planckian2→Nscattering." Nuclear Physics B 893 (April 2015): 187–235. http://dx.doi.org/10.1016/j.nuclphysb.2015.02.004.

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11

Tirandaz, Arash, Farhad Taher Ghahramani, Ali Asadian, and Mehdi Golshani. "Classicalization of quantum state of detector by amplification process." Physics Letters A 383, no. 15 (May 2019): 1677–82. http://dx.doi.org/10.1016/j.physleta.2019.02.039.

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12

Yamada, Hiroaki. "Delocalization and Classicalization of Quantum Wavepacket in Kicked Anderson Model." Journal of the Physical Society of Japan 72, Suppl.C (January 2003): 101–4. http://dx.doi.org/10.1143/jpsjs.72sc.101.

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13

Kholmatov, Temurmalik. "The Origins of Classicalization Publication and Perception of Academic Heritage of S.B. Veselovskiy." Philosophy. Journal of the Higher School of Economics VI, no. 1 (March 31, 2022): 184–212. http://dx.doi.org/10.17323/2587-8719-2022-1-184-212.

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The research of how scientific works acquire the status of “classics” is an essential aspect of studying the actualization of ideas and approaches, their circulation in the academic field, as well as the current state of a scientific direction or discipline. Based on historiographical sources and documentation, this article analyzes the role of publication and perception of academic heritage of the famous historian, academician Stepan Borisovich Veselovskiy (1876–1952) in classification. In this research, the creation and activity of the Commission for the publication of Veselovskiy's papers are considered one of the key stages in the process of classicalization. The reasons for creating the Commission and its history, personal membership, and publishing plans based on documentation materials from the Archive of the Russian Academy of Sciences (RAS) are studied. Also, the influence of Veselovskiy's literary heritage on the historiography of the late Soviet era is analyzed. The author considers the continuity of Veselovskiy's scientific views and research approaches on pre-Petrine Russia's history, the criticism of papers published both during his lifetime and posthumously. Special attention is paid to the influence of reviews on the classification of literary heritage. Further research prospects are highlighted, and it is assumed that the posthumous publication of Veselovskiy's academic works and their involvement in historiography created the basis for the classification of Veselovskiy's literary heritage in the late Soviet period.
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14

Melia, Fulvio. "Classicalization of quantum fluctuations at the Planck scale in the Rh = ct universe." Physics Letters B 818 (July 2021): 136362. http://dx.doi.org/10.1016/j.physletb.2021.136362.

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15

Dodonov, V. V., C. Valverde, L. S. Souza, and B. Baseia. "Classicalization times of parametrically amplified “Schrödinger cat” states coupled to phase-sensitive reservoirs." Physics Letters A 375, no. 42 (October 2011): 3668–76. http://dx.doi.org/10.1016/j.physleta.2011.08.058.

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16

Campos-Muñoz, Germán. "Cuzco, Urbs et Orbis: Rome and Garcilaso de la Vega's Self-Classicalization." Hispanic Review 81, no. 2 (2013): 123–44. http://dx.doi.org/10.1353/hir.2013.0011.

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17

Barvinsky, A. O., and A. Yu Kamenshchik. "Preferred basis in quantum theory and the problem of classicalization of the quantum Universe." Physical Review D 52, no. 2 (July 15, 1995): 743–57. http://dx.doi.org/10.1103/physrevd.52.743.

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18

Aurilia, Antonio, and Euro Spallucci. "Why the Length of a Quantum String Cannot Be Lorentz Contracted." Advances in High Energy Physics 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/531696.

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We propose a quantum gravity-extended form of the classical length contraction law obtained in special relativity. More specifically, the framework of our discussion is the UV self-complete theory of quantum gravity. We show how our results are consistent with (i) the generalized form of the uncertainty principle (GUP), (ii) the so-called hoop-conjecture, and (iii) the intriguing notion of “classicalization” of trans-Planckian physics. We argue that there is a physical limit to the Lorentz contraction rule in the form of some minimal universal length determined by quantum gravity, say the Planck Length, or any of its current embodiments such as the string length, or the TeV quantum gravity length scale. In the latter case, we determine the critical boost that separates the ordinary “particle phase,” characterized by the Compton wavelength, from the “black hole phase,” characterized by the effective Schwarzschild radius of the colliding system.
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19

Spallucci, Euro, and Anais Smailagic. "Regular black holes from semi-classical down to Planckian size." International Journal of Modern Physics D 26, no. 07 (February 27, 2017): 1730013. http://dx.doi.org/10.1142/s0218271817300130.

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In this paper, we review various models of curvature singularity free black holes (BHs). In the first part of the review, we describe semi-classical solutions of the Einstein equations which, however, contains a “quantum” input through the matter source. We start by reviewing the early model by Bardeen where the metric is regularized by-hand through a short-distance cutoff, which is justified in terms of nonlinear electro-dynamical effects. This toy-model is useful to point-out the common features shared by all regular semi-classical black holes. Then, we solve Einstein equations with a Gaussian source encoding the quantum spread of an elementary particle. We identify, the a priori arbitrary, Gaussian width with the Compton wavelength of the quantum particle. This Compton–Gauss model leads to the estimate of a terminal density that a gravitationally collapsed object can achieve. We identify this density to be the Planck density, and reformulate the Gaussian model assuming this as its peak density. All these models, are physically reliable as long as the BH mass is big enough with respect to the Planck mass. In the truly Planckian regime, the semi-classical approximation breaks down. In this case, a fully quantum BH description is needed. In the last part of this paper, we propose a nongeometrical quantum model of Planckian BHs implementing the Holographic Principle and realizing the “classicalization” scenario recently introduced by Dvali and collaborators. The classical relation between the mass and radius of the BH emerges only in the classical limit, far away from the Planck scale.
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20

Giusti, Andrea. "On the corpuscular theory of gravity." International Journal of Geometric Methods in Modern Physics 16, no. 03 (March 2019): 1930001. http://dx.doi.org/10.1142/s0219887819300010.

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The aim of this work is to provide a general description of the corpuscular theory of gravity. After reviewing some of the major conceptual issues emerging from the semiclassical and field theoretic approaches to Einstein’s gravity, we present a synthetic overview of two novel (and extremely intertwined) perspectives on quantum mechanical effects in gravity: the horizon quantum mechanics (HQM) formalism and the classicalization scheme. After this preliminary discussion, we then proceed with implementing the latter to several different scenarios, namely self-gravitating systems, the early Universe, and galactic dynamics. Concerning the first scenario, we start by describing the generation of the Newtonian potential as the result of a coherent state of toy (scalar) gravitons. After that we employ this result to study some features of the gravitational collapse and to argue that black holes can be thought of a self-sustained quantum states, at the critical point, made of a large number of soft virtual gravitons. We then refine this simplified analysis by constructing an effective theory for the gravitational potential of a static spherical symmetric system up to the first post-Newtonian correction. Additionally, we employ the HQM formalism to study the causal structure emerging from the corpuscular scenario. Finally, we present a short discussion of corpuscular black holes in lower dimensional spaces. After laying down the basics of corpuscular black holes, we present a generalization of the aforementioned arguments to cosmology. Specifically, we first introduce a corpuscular interpretation of the de Sitter spacetime. Then we use it as the starting point for a corpuscular formulation of the inflationary scenario and to provide an alternative viewpoint on the dark components of the [Formula: see text]CDM model. The key message of this work is that the corpuscular theory of gravity offers a way to unify most of the experimental observations (from astrophysical to galactic and cosmological scales) in a single framework, solely based on gravity and baryonic matter.
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21

Rizos, J., and N. Tetradis. "Dynamical classicalization." Journal of High Energy Physics 2012, no. 4 (April 2012). http://dx.doi.org/10.1007/jhep04(2012)110.

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22

Kovner, Alex, and Michael Lublinsky. "Classicalization and unitarity." Journal of High Energy Physics 2012, no. 11 (November 2012). http://dx.doi.org/10.1007/jhep11(2012)030.

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23

Dvali, Gia, Gian F. Giudice, Cesar Gomez, and Alex Kehagias. "UV-completion by classicalization." Journal of High Energy Physics 2011, no. 8 (August 2011). http://dx.doi.org/10.1007/jhep08(2011)108.

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24

Rizos, J., N. Tetradis, and G. Tsolias. "Classicalization as a tunnelling phenomenon." Journal of High Energy Physics 2012, no. 8 (August 2012). http://dx.doi.org/10.1007/jhep08(2012)054.

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25

Dvali, Gia, Cesar Gomez, and Alex Kehagias. "Classicalization of gravitons and Goldstones." Journal of High Energy Physics 2011, no. 11 (November 2011). http://dx.doi.org/10.1007/jhep11(2011)070.

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26

Bressanini, Gabriele, Claudia Benedetti, and Matteo G. A. Paris. "Decoherence and classicalization of continuous-time quantum walks on graphs." Quantum Information Processing 21, no. 9 (September 17, 2022). http://dx.doi.org/10.1007/s11128-022-03647-x.

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AbstractWe address decoherence and classicalization of continuous-time quantum walks (CTQWs) on graphs. In particular, we investigate three different models of decoherence and employ the quantum-classical (QC) dynamical distance as a figure of merit to assess whether, and to which extent, decoherence classicalizes the CTQW, i.e. turns it into the analogue classical process. We show that the dynamics arising from intrinsic decoherence, i.e. dephasing in the energy basis, do not fully classicalize the walker and partially preserves quantum features. On the other hand, dephasing in the position basis, as described by the Haken–Strobl master equation or by the quantum stochastic walk (QSW) model, asymptotically destroys the quantumness of the walker, making it equivalent to a classical random walk. We also investigate how fast is the classicalization process and observe a larger rate of convergence of the QC-distance to its asymptotic value for intrinsic decoherence and the QSW models, whereas in the Haken–Strobl scenario, larger values of the decoherence rate induce localization of the walker.
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27

Dvali, Gia, and Lukas Eisemann. "Perturbative understanding of nonperturbative processes and quantumization versus classicalization." Physical Review D 106, no. 12 (December 29, 2022). http://dx.doi.org/10.1103/physrevd.106.125019.

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28

Das, Suratna, Satyabrata Sahu, Shreya Banerjee, and T. P. Singh. "Classicalization of inflationary perturbations by collapse models in light of BICEP2." Physical Review D 90, no. 4 (August 5, 2014). http://dx.doi.org/10.1103/physrevd.90.043503.

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29

Berkhahn, Felix, Dennis D. Dietrich, and Stefan Hofmann. "Cosmological Classicalization: Maintaining Unitarity under Relevant Deformations of the Einstein-Hilbert Action." Physical Review Letters 106, no. 19 (May 11, 2011). http://dx.doi.org/10.1103/physrevlett.106.191102.

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30

Yuen, Horace P., and Ranjith Nair. "Classicalization of nonclassical quantum states in loss and noise: Some no-go theorems." Physical Review A 80, no. 2 (August 19, 2009). http://dx.doi.org/10.1103/physreva.80.023816.

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31

Dvali, Gia, and Raju Venugopalan. "Classicalization and unitarization of wee partons in QCD and gravity: The CGC-black hole correspondence." Physical Review D 105, no. 5 (March 29, 2022). http://dx.doi.org/10.1103/physrevd.105.056026.

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