@all Weekly Papers

Weekly Papers on Quantum Foundations (43)

Quantum mysteries explained in digestible form IJQF Weekly Papers • quant-ph updates on arXiv.org / 13h arXiv:2510.20144v1 Announce Type: new Abstract: Years ago, Itamar Pitowski asked two relevant questions: Why microphysical (quantum) phenomena and classical phenomena differ in the way they do? and, what kind of explanation could qualify as a reasonable one? I argue that both questions can be answered by… Read more →

Weekly Papers on Quantum Foundations (41)

Stochastic interpretation of quantum mechanics IJQF Weekly Papers • quant-ph updates on arXiv.org / 22h arXiv:2510.06418v1 Announce Type: new Abstract: We express the probabilistic character associated to the wave function by treating it as a stochastic variable. This is accomplished by means of a stochastic equation for the wave function whose noise changes the phase of the wave function but not its… Read more →

Weekly Papers on Quantum Foundations (40)

Quantum Signatures of Strange Attractors IJQF Weekly Papers • quant-ph updates on arXiv.org / 13h arXiv:2510.01416v1 Announce Type: new Abstract: In classical mechanics, driven systems with dissipation often exhibit complex, fractal dynamics known as strange attractors. This paper addresses the fundamental question of how such structures manifest in the quantum realm. We investigate the quantum Duffing oscillator, a paradigmatic chaotic system, using… Read more →

Weekly Papers on Quantum Foundations (39)

Quantum statistical mechanical gauge invariance IJQF Weekly Papers • quant-ph updates on arXiv.org / 13h arXiv:2509.20494v1 Announce Type: new Abstract: We address gauge invariance in the statistical mechanics of quantum many-body systems. The gauge transformation acts on the position and momentum degrees of freedom and it is represented by a quantum shifting superoperator that maps quantum observables onto each other. The shifting… Read more →

Weekly Papers on Quantum Foundations (38)

Open-system analogy of Berry conjecture IJQF Weekly Papers • quant-ph updates on arXiv.org / 13h arXiv:2509.14644v1 Announce Type: new Abstract: Berry conjecture is central to understanding quantum chaos in isolated systems and foundational for the eigenstate thermalization hypothesis. Here we establish an open-system analogy of the Berry conjecture, connecting quantum steady states to classical dissipative attractors in the semiclassical limit. We demonstrate… Read more →

Weekly Papers on Quantum Foundations (37)

Retrocausal capacity of a quantum channel IJQF Weekly Papers • quant-ph updates on arXiv.org / 13h arXiv:2509.08965v1 Announce Type: new Abstract: We study the capacity of a quantum channel for retrocausal communication, where messages are transmitted backward in time, from a sender in the future to a receiver in the past, through a noisy postselected closed timelike curve (P-CTC) represented by the… Read more →

Weekly Papers on Quantum Foundations (36)

Quantum aspects of the classical Maxwell’s equations in free space from the perspective of the correspondence principle IJQF Weekly Papers • quant-ph updates on arXiv.org / 1d arXiv:2509.02620v1 Announce Type: new Abstract: Due to the advent of Quantum Mechanics’ 100th anniversary, we wrote this review paper in order to present a discussion that addresses the foundations of this theory. And since the… Read more →

Weekly Papers on Quantum Foundations (35)

Symmetry enforces entanglement at high temperatures IJQF Weekly Papers • quant-ph updates on arXiv.org / 17h arXiv:2508.20166v1 Announce Type: new Abstract: Many-body quantum systems with local interactions undergo “sudden death of entanglement” at high temperatures, whereby thermal states become classical mixtures of product states. We investigate whether symmetry constraints can prevent this phenomenon. We prove that strongly symmetric thermal states (canonical ensemble)… Read more →

Weekly Papers on Quantum Foundations (34)

Contextuality from the vacuum IJQF Weekly Papers • quant-ph updates on arXiv.org / 15h arXiv:2508.15001v1 Announce Type: new Abstract: Contextuality, a key resource for quantum advantage, is a phenomenon where the outcome of a measurement is not independent of other compatible measurements, violating the premise of classical hidden variable descriptions of the theory. We investigate the harvesting of contextuality from the vacuum… Read more →

Weekly Papers on Quantum Foundations (33)

On the Derivation of Equations of Motion from Symmetries in Quantum-Mechanical Systems via Heisenberg’s Uncertainty IJQF Weekly Papers • quant-ph updates on arXiv.org / 14h arXiv:2508.10661v1 Announce Type: new Abstract: We propose the construction of equations of motion based on symmetries in quantum-mechanical systems, using Heisenberg’s uncertainty principle as a minimal foundation. From canonical operators, two spaces of conjugate operators are constructed,… Read more →

Weekly Papers on Quantum Foundations (32)

Causal Interventions Beyond Time: A CP-do(C)-Calculus for Indefinite Quantum Order IJQF Weekly Papers • quant-ph updates on arXiv.org / 15h arXiv:2508.04737v1 Announce Type: new Abstract: We reformulate Pearl’s three rules of do-calculus in the language of completely positive (CP) trace-preserving maps, thereby extending them to quantum systems with entanglement. We prove that Rule~2 fails whenever the underlying process admits indefinite causal order,… Read more →