3 papers
quant-ph2025
Superpositions of thermalisations in relativistic quantum field theory
Joshua Foo, Magdalena Zych
Recent results in relativistic quantum information and quantum thermodynamics have independently shown that in the quantum regime, a system may fail to thermalise when subject to q…
gr-qc2025
Relativity and decoherence of spacetime superpositions
Joshua Foo, Robert B. Mann, Magdalena Zych
It is univocally anticipated that in a theory of quantum gravity, there exist quantum superpositions of semiclassical states of spacetime geometry. Such states could arise for exam…
gr-qc2024
Entanglement harvesting in quantum superposed spacetime
Anwesha Chakraborty, Lucas Hackl, Magdalena Zych
We investigate the phenomenon of entanglement harvesting for a spacetime in quantum superposition, using two Unruh-DeWitt detectors interacting with a quantum scalar field where th…