New perspectives on quantum correlations

Prasanta Kumar Panigrahi, Chiranjib Mitra

Prasad Vijay Chittal

This note formalizes the Operational Perspective Closure Principle (OPCP), a proposed research criterion for evaluating claims that differences between physical descriptions from different perspectives represent an additional physical degree of freedom. The principle does not introduce a new fundamental law or invariant. Instead, it provides a falsification-oriented test: representational and accessibility differences should not be interpreted as new physics unless an operationally measurable prediction remains incompatible after legitimate transformations of the complete accessible relational structure, including relevant causal restrictions, quantum correlations, gravitational dynamics, measurement structure, and known systematics.

Feng Liu, Fei Li, Yunxia Wei

Lê Phuc Thinh

Marcin Karczewski, Su‐Yong Lee, Junghee Ryu +3 more

The indistinguishability of particles is an important feature of quantum mechanics. To account for indistinguishability, identical particles are described as inherently correlated. In this paper we study a method of transforming these correlations into operationally accessible entanglement with single-particle subtractions. We provide specific protocols to turn the bosonic symmetrization into various classes of entanglement. Moreover, we explain why analogous schemes cannot work for fermions. These results provide a new perspective on manipulating quantum states with heralded subtraction.

Y. B. Band, Y. Avishai