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Weekly Papers on Quantum Foundations (44)

Why The Cosmological Constant is a Boundary Condition. (arXiv:1811.00130v1 [hep-th])  hep-th updates on arXiv.org on 2018-11-04 12:52am GMT Authors: Tom Banks, Willy Fischler We review arguments that the cosmological constant (c.c.) should not be thought of as a local contribution to the energy density, but rather as an infrared boundary condition specifying particular models of quantum gravity. Certifying the Building Blocks of… Read more →

Weekly Papers on Quantum Foundations (43)

On the Consistency of the Wheeler-DeWitt Equation in the Quantized Eddington-inspired Born-Infeld Gravity. (arXiv:1810.10918v1 [gr-qc])  hep-th updates on arXiv.org on 2018-10-26 3:30am GMT Authors: Mariam Bouhmadi-López, Che-Yu Chen, Pisin Chen We re-examine the quantum geometrodynamical approach within the Eddington-inspired-Born-Infeld theory of gravity, which was first proposed in our previous work [1]. A thorough analysis of the classical Hamiltonian with constraints is carried and… Read more →

Weekly Papers on Quantum Foundations (42)

50 years in the Landau Institute environment. (arXiv:1810.04447v5 [physics.hist-ph] UPDATED)  physics.hist-ph updates on arXiv.org on 2018-10-20 1:07am GMT Authors: G.E. Volovik Khalatnikov created the unique Institute, where practically all the important areas of theoretical physics have been represented, opening the broad way for collaboration. Here I discuss the influence of the multilayer environment of Landau Institute on my work during 50… Read more →

Weekly Papers on Quantum Foundations (41)

Realism about the Wave Function  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2018-10-14 2:01am GMT Chen, Eddy Keming (2018) Realism about the Wave Function. [Preprint] Against Fundamentalism  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2018-10-14 1:57am GMT Leifer, Matthew (2018) Against Fundamentalism. [Preprint] Quantum Mechanics in a Time-Asymmetric Universe: On the Nature of the Initial Quantum State  The… Read more →

Weekly Papers on Quantum Foundations (40)

Bohm’s approach to quantum mechanics: Alternative theory or practical picture?. (arXiv:1707.00609v2 [quant-ph] UPDATED)  physics.hist-ph updates on arXiv.org on 2018-10-06 12:59am GMT Authors: A. S. Sanz Since its inception Bohmian mechanics has been generally regarded as a hidden-variable theory aimed at providing an objective description of quantum phenomena. To date, this rather narrow conception of Bohm’s proposal has caused it more rejection… Read more →

Weekly Papers on Quantum Foundations (39)

A Toy Model of the Information Paradox in Empty Space. (arXiv:1809.10154v1 [hep-th])  gr-qc updates on arXiv.org on 2018-9-28 12:43pm GMT Authors: Suvrat Raju A sharp version of the information paradox involves a seeming violation of the monogamy of entanglement during black hole evaporation. We construct an analogous paradox in empty anti-de Sitter space. In a local quantum field theory, Bell correlations… Read more →

Weekly Papers on Quantum Foundations (38)

Bouncing oil droplets, de Broglie’s quantum thermostat and convergence to equilibrium. (arXiv:1807.00569v4 [quant-ph] UPDATED)  quant-ph updates on arXiv.org on 2018-9-22 7:24am GMT Authors: Mohamed Hatifi, Ralph Willox, Samuel Colin, Thomas Durt Recently, the properties of bouncing oil droplets, also known as “walkers”, have attracted much attention because they are thought to offer a gateway to a better understanding of quantum behaviour. They constitute indeed… Read more →

Weekly Papers on Quantum Foundations (25)

Dimensional reduction via a novel Higgs mechanism. (arXiv:1806.07520v1 [gr-qc] CROSS LISTED)  hep-th updates on arXiv.org on 2018-6-23 1:03am GMT Authors: Saurya Das, Mir Faizal Many theories of quantum gravity live in higher dimensions, and their reduction to four dimensions via mechanisms such as Kaluza-Klein compactification or brane world models have associated problems. We propose a novel mechanism of dimensional reduction via spontaneous… Read more →

Weekly Papers on Quantum Foundations (24)

Quantum gravity tomography. (arXiv:1806.05643v1 [hep-th])  hep-th updates on arXiv.org on 2018-6-16 1:14am GMT Authors: William Donnelly The holographic principle posits that all quantum information in a region of spacetime is encoded on its boundary. While there is strong evidence for this principle in certain models of quantum gravity in asymptotically anti-de Sitter spacetime, it is yet to be established whether holography… Read more →

Weekly Papers on Quantum Foundations (23)

Why initial system-environment correlations do not imply the failure of complete positivity: a causal perspective. (arXiv:1806.02381v1 [quant-ph])  quant-ph updates on arXiv.org on 2018-6-09 12:56am GMT Authors: David Schmid, Katja Reid, Robert W. Spekkens The common wisdom in the field of quantum information theory is that when a system is initially correlated with its environment, the map describing its evolution may fail to be… Read more →

Weekly Papers on Quantum Foundations (22)

Continuity of measurement outcomes. (arXiv:1805.12404v1 [quant-ph])  quant-ph updates on arXiv.org on 2018-6-02 3:59am GMT Authors: J. Sperling It is demonstrated that the collapse of the wave function is equivalent to the continuity of measurement outcomes. The latter states that a second measurement has to result in the same outcome as the first measurement of the same observable for a vanishing time… Read more →