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15 papers · 2 filters
Information and the foundations of quantum theory
Angelo Bassi, Saikat Ghosh, Tejinder P. Singh
We believe that the hypothesis `it from bit' originates from the assumption that probabilities have a fundamental, irremovable status in quantum theory. We argue against this assum…
Properties of subentropy
Nilanjana Datta, Tony Dorlas, Richard Jozsa +1
Subentropy is an entropy-like quantity that arises in quantum information theory; for example, it provides a tight lower bound on the accessible information for pure state ensemble…
Entanglement, Superselection Rules and Supersymmetric Quantum Mechanics
E. Cattaruzza, E. Gozzi, C. Pagani
In this paper we show that the energy eigenstates of supersymmetric quantum mechanics (SUSYQM) with non definite "fermion" number are entangled states. They are "physical states" o…
Testing the quantum superposition principle in the frequency domain
Mohammad Bahrami, Angelo Bassi, Hendrik Ulbricht
New technological developments allow to explore the quantum properties of very complex systems, bringing the question of whether also macroscopic systems share such features, withi…
Dissipative quantum metrology in manybody systems of identical particles
F. Benatti, S. Alipour, A. T. Rezakhani
Estimation of physical parameters is a must in almost any part of science and technology. The enhancement of the performances in this task, e.g., beating the standard classical sho…
On the spontaneous emission of electromagnetic radiation in the CSL model
S. Donadi, A. Bassi, D. -A. Deckert
Spontaneous photon emission in the Continuous Spontaneous Localization (CSL) model is studied one more time. In the CSL model each particle interacts with a noise field that induce…