Cracking the quantum code: Simulations track entangled quarks

Phys.org  March 19, 2024 The cascades of particles produced by the fragmentation of supposedly entangled particles emitted from high energy particle collisions should allow testing the real-time response of the QCD vacuum disturbed by the propagation of high-momentum color charges. A team of researchers in the US (Stony Brook University, Brook Haven National Laboratory) developed fully quantum simulations of a massive Schwinger model coupled to external sources representing quark and antiquark jets as produced in e+e− annihilation. They studied the modification of the vacuum chiral condensate by the propagating jets and the quantum entanglement between the fragmenting jets. Their results […]