Received Papers

Weekly Papers on Quantum Foundations (32)

Adiabatic Theorem for Quantum Spin Systems  PRL: General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. on 2017-8-11 2:00pm GMT Author(s): S. Bachmann, W. De Roeck, and M. Fraas The first proof of the quantum adiabatic theorem was given as early as 1928. Today, this theorem is increasingly applied in a many-body context, e.g., in quantum annealing and in studies... Read more →

Duration and its relation to the structure of space-time II

Andreas Schlatter We assign to the radiation vacuum the role of a universal observer with a corresponding universal clock. By demanding that the thermal clock of a gravitationally accelerated observer in its local rest frame marches in step with the universal one, we derive relations between energy content and geometry of space-time. Full text

Quantum jumps and electrodynamical description

Leonardo Chiatti (ASL VT Medical Physics Laboratory) The customary description of radiation processes provided by Quantum Electrodynamics (QED) allows the quantitative derivation of many physical observables, in line with experiments. This extraordinary empirical success, however, leaves open the problem of the ontology of these processes. We identify these with the discontinuities of the evolution of the quantum state of the... Read more →

On the Reality of the Wavefunction

Dear All, Recently, I have written a paper arguing against the claim of the PBR theorem. That is, I have shown that statistics of PBR's scenario can be reproduced by $\psi$-epistemic ontological models. However, the only thing that is required is to consider the role of the measurement ontic states. In what follows, I have provided the abstract of the... Read more →

Quantum mechanics from an epistemic state space

Per Östborn (Lund University, Sweden) We derive the Hilbert space formalism of quantum mechanics from epistemic principles. A key assumption is that a physical theory that relies on entities or distinctions that are unknowable in principle gives rise to wrong predictions. An epistemic formalism is developed, where concepts like individual and collective knowledge are used, and knowledge may be actual... Read more →

The De Broglie-Bohm Theory As A Rational Completion Of Quantum Mechanics

We try to give a physical meaning to the wave function or quantum state of a system, apart from being a very efficient tool for predicting results of measurements on that system. In other words, we ask: what does it mean for a system outside the laboratories to have a wave function? We first explain why two possible, and probably common, answers to... Read more →

History of Quantum Mechanics or the Comedy of Errors

Jean Bricmont (IRMP, Universite catholique de Louvain) The goal of this paper is to explain how the views of Albert Einstein, John Bell and others, about nonlocality and the conceptual issues raised by quantum mechanics, have been rather systematically misunderstood by the majority of physicists. Full text

Quantum nonlocality observable on a non-statistical level: idea, experimental evidence, fundamental consequences

Sergey A. Emelyanov (A. F. Ioffe Institute) Today quantum nonlocality is discussed only in the context of EPR situation where we face a macroscopic system which is fundamentally indivisible insofar as it consists of entangled distant particles. But quantum formalism implies a one more type of indivisibility. It is the indivisibility of a quantum state per se regardless of its... Read more →

Entangled history?

Did anyone read the papers by Wilczek on entangled history? Any comment?

Response to Wiseman, Rieffel, and Cavalcanti on Bell's 1964 Paper

Edward J. Gillis Wiseman has claimed that Bell was wrong in stating that determinism was inferred rather than assumed in the summary of the EPR argument in his 1964 paper. The reply of Wiseman and his co-authors to my comment misstates my reasons for disputing this point, and fails to address the central criticism that their claim is based on a seriously flawed... Read more →

Quantum Equivalence Principle In A Universal Hilbert Space

Michael York We propose a unifying quantum framework in which Einstein’s equivalence principle is generalized to a universal Hilbert space in which all interaction is treated as a generalization of a frame transformation and represented by a change of basis. In our scheme intrinsic information is carried by a physical system independently of any frame of reference (or basis). A... Read more →