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Velocity of a Quantum Particle in a Classically Forbidden Region
Christian Beck, Sheldon Goldstein, Dustin Lazarovici +2
Recently, Sharoglazova et al. [Nature 643, 67 (2025)] proposed a procedure for determining the speed of a quantum particle in the classically forbidden region of a potential step,…
On the Measurement of the Unruh Effect Through Extended Quantum Thermometers
M. Cardi, P. Solinas, N. Zanghì
The Unruh effect, predicting a thermal reservoir for accelerating systems, calls for a more refined understanding of measurement processes involving quantum systems as thermometers…
Arrival Times Versus Detection Times
Sheldon Goldstein, Roderich Tumulka, Nino Zanghì
How to compute the probability distribution of a detection time, i.e., of the time which a detector registers as the arrival time of a quantum particle, is a long-debated problem.…
On the Spin Dependence of Detection Times and the Nonmeasurability of Arrival Times
Sheldon Goldstein, Roderich Tumulka, Nino Zanghì
According to a well-known principle of quantum physics, the statistics of the outcomes of any quantum experiment are governed by a Positive Operator-Valued Measure (POVM). In parti…
Remarks About the Relationship Between Relational Physics and a Large Kantian Component of the Laws of Nature
Sheldon Goldstein, Nino Zanghi
Relational mechanics is a reformulation of mechanics (classical or quantum) for which space is relational. This means that the configuration of an -particle system is a shape, w…
Quasi-probabilities of work and heat in an open quantum system
Paolo Solinas, Mirko Amico, Nino N. Zanghì
We discuss an approach to determine averages of the work, dissipated heat and variation of internal energy of an open quantum system driven by an external classical field. These qu…