• Celebrating 10 Years of Excellence

    Celebrating 10 Years of Excellence

    The International Journal of Quantum Foundations (IJQF) is a quarterly, peer-reviewed, open-access online journal dedicated to advancing research and discourse in the conceptual and mathematical foundations of quantum theories. Launched… Read more →

Weekly Papers on Quantum Foundations (15)

On Lorentzian symmetries of quantum information IJQF Weekly Papers • quant-ph updates on arXiv.org / 3h arXiv:2604.07471v1 Announce Type: new Abstract: A foundational result in relativistic quantum information theory due to Peres, Scudo, and Terno, is that von Neumann entropy is not Lorentz invariant. Motivated by the “It from Qubit” paradigm, here we show that Lorentzian symmetries of quantum information emerge naturally… Read more →

Weekly Papers on Quantum Foundations (14)

Conventionalism in general relativity?: formal existence proofs and Reichenbach’s theorem {\theta} in context IJQF Weekly Papers • physics.hist-ph updates on arXiv.org / 7d arXiv:2603.24608v1 Announce Type: new Abstract: Weatherall and Manchak (2014) show that, under reasonable assumptions, Reichenbachean universal effects, constrained to a rank-2 tensor field representation in the geodesic equation, always exist in non-relativistic gravity but not so for relativistic spacetimes…. Read more →

Weekly Papers on Quantum Foundations (13)

Test of the essential collapse-locality loophole IJQF Weekly Papers • quant-ph updates on arXiv.org / 2h arXiv:2603.24909v1 Announce Type: new Abstract: Collapse-locality is an untested loophole in the violation of Bell’s inequalities. The core of the argument is that the time value of photon detection is delayed by the time Tc required by the collapse of its quantum state. The value of… Read more →

Weekly Papers on Quantum Foundations (12)

Bell-EPR Correlations within Local Quantum Theory IJQF Weekly Papers • quant-ph updates on arXiv.org / 2h arXiv:2603.18198v1 Announce Type: new Abstract: We present a local unitary theory of a Bell-EPR measurement, starting with the premeasurement filtering of the individual photon polarizations and extending through the detection process involving four photodetectors, two at each receiving station. The essential feature is that decoherence occurs… Read more →