Nine Lorentz covariant bitensors for two Dirac spinors to indicate all entangled states

Markus Johansson

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arXiv · 2308.03482

Nine Lorentz covariant bitensors for two Dirac spinors to indicate all entangled states

Markus Johansson

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Abstract

The spinorial degrees of freedom of two spacelike separated Dirac particles are considered and a collection of nine locally Lorentz covariant bitensors is constructed. Four of these bitensors have been previously described in [Phys. Rev. A 105, 032402 (2022), arXiv:2103.07784]. The collection of bitensors has the property that all nine bitensors are simultaneously zero if and only if the state of the two particles is a product state. Thus this collection of bitensors indicates any type of spinor entanglement between two spacelike separated Dirac particles.

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Markus Johansson. 2023-08-07. Nine Lorentz covariant bitensors for two Dirac spinors to indicate all entangled states. https://arxiv.org/abs/2308.03482

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