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Weekly Papers on Quantum Foundations (26)

Born’s rule from almost nothing. (arXiv:2006.14175v1 [quant-ph]) 上午10:14 | Sabine Hossenfelder | quant-ph updates on arXiv.org We here put forward a simple argument for Born’s rule based on the requirement that the probability distribution should not be a function of the number of degrees of freedom. How small an environment can be to still generate decoherence?. (arXiv:2006.14468v1 [quant-ph]) 上午10:14 |… Read more →

Weekly Papers on Quantum Foundations (25)

The CHSH Test Can be Used for All Quantum-Describable Systems 上午8:00 | Latest Results for Foundations of Physics Abstract This paper shows that the Clauser–Horne–Shimony–Holt test of locality of correlations which was originally designed to be used with binary observables can actually be used for any couples of quantum-like bounded continuous observables, and then for any experimental situation describable within… Read more →

Weekly Papers on Quantum Foundations (24)

Observing the fate of the false vacuum with a quantum laboratory. (arXiv:2006.06003v1 [hep-th]) 上午9:31 | Steven Abel, Michael Spannowsky | quant-ph updates on arXiv.org We design and implement a quantum laboratory to experimentally observe and study dynamical processes of quantum field theories. Our approach encodes the field theory as an Ising model, which is then solved by a quantum annealer…. Read more →

Weekly Papers on Quantum Foundations (23)

Properties of Spin and Orbital Angular Momenta of Light. (arXiv:2006.02673v1 [quant-ph]) 上午9:43 | Arvind, S. Chaturvedi, N. Mukunda | quant-ph updates on arXiv.org This paper analyzes the algebraic and physical properties of the spin and orbital angular momenta of light in the quantum mechanical framework. The consequences of the fact that these are not angular momenta in the quantum mechanical… Read more →

Weekly Papers on Quantum Foundations (22)

Which Worldlines Represent Possible Particle Histories? 上午8:00 | Latest Results for Foundations of Physics Abstract Based on three common interpretive commitments in general relativity, I raise a conceptual problem for the usual identification, in that theory, of timelike curves as those that represent the possible histories of (test) particles in spacetime. This problem affords at least three different solutions, depending… Read more →

Weekly Papers on Quantum Foundations (21)

Deterministic Quantum Mechanics: the Mathematical Equations Gerard t Hooft Download PDF Without wasting time and effort on philosophical justifications and implications, we write down the conditions for the Hamiltonian of a quantum system for rendering it mathematically equivalent to a deterministic system. These are the equations to be considered. Special attention is given to the notion of `locality’. Various examples… Read more →

Weekly Papers on Quantum Foundations (19,20)

Which Worldlines Represent Possible Particle Histories? 上午8:00 | Latest Results for Foundations of Physics Abstract Based on three common interpretive commitments in general relativity, I raise a conceptual problem for the usual identification, in that theory, of timelike curves as those that represent the possible histories of (test) particles in spacetime. This problem affords at least three different solutions, depending… Read more →

Weekly Papers on Quantum Foundations (17,18)

Extending the Agent in QBism. (arXiv:2004.14847v1 [quant-ph]) 下午3:48 | Jacques Pienaar | quant-ph updates on arXiv.org According to the subjective Bayesian interpretation of quantum mechanics (QBism), the instruments used to measure quantum systems are to be regarded as an extension of the senses of the agent who is using them, and quantum states describe the agent’s expectations for what they… Read more →

Weekly Papers on Quantum Foundations (15,16)

Subjectifying Objectivity: Delineating Tastes in Theoretical Quantum Gravity Research. (arXiv:2004.07450v1 [physics.hist-ph]) 上午8:42 | physics.hist-ph updates on arXiv.org Authors: Thomas K. Gilbert, Andrew J. Loveridge Research in Theoretical Quantum Gravity has continued expansively even as it has become detached from classic arbiters of research such as direct empirical falsification. This makes it an interesting test case for social-scientific theories of what motivates and… Read more →

Weekly Papers on Quantum Foundations (14)

Quantum Incompatibility of a Physical Context. (arXiv:2004.01008v1 [quant-ph]) 上午8:37 | E. Martins, M. F. Savi, R. M. Angelo | quant-ph updates on arXiv.org Pivotal within quantum physics, the concept of quantum incompatibility is generally related to algebraic aspects of the formalism, such as commutation relations and unbiasedness of bases. Recently, the concept was identified as a resource in tasks involving… Read more →

Weekly Papers on Quantum Foundations (13)

Searching for Coherent States, From Origins to Quantum Gravity. (arXiv:2003.11810v1 [quant-ph]) 上午8:40 | physics.hist-ph updates on arXiv.org Authors: Pierre Martin-Dussaud We discuss the notion of coherent states from three different perspectives: the seminal approach of Schroedinger, the experimental take of quantum optics, and the theoretical developments in quantum gravity. This comparative study tries to emphasise the connections between the approaches, and… Read more →