5 citations · 6 across the 5 of their papers we have counts for
5 papers
Spectral Density of the Causal Propagator
Joshua Y. L. Jones, Yasaman K. Yazdi
The causal propagator (or Pauli-Jordan function), which multiplied by is the spacetime commutator of the field , plays an essential role in scalar quantum field t…
Spectral Spacetime Entropy for Quasifree Theories
Joshua Y. L. Jones, Yasaman K. Yazdi
Motivated by the necessity to UV-regularise entanglement entropy, we present a spectral method for calculating the entropy of quasifree states, for both bosonic and fermionic field…
Efficient evaluation of real-time path integrals
Job Feldbrugge, Joshua Y. L. Jones
The Feynman path integral has revolutionized modern approaches to quantum physics. Although the path integral formalism has proven very successful and spawned several approximation…
Principles for a Distinguished Global Vacuum: Entropy and the Vacuum State in Causal Set Theory
Joshua Y. L. Jones
Using the framework of real scalar field theory on causal sets, the intimate relation of the Sorkin-Johnston vacuum to entropic purity is elucidated. It is shown that taking a set…
Entanglement Entropy of Disjoint Spacetime Intervals in Causal Set Theory
Callum F. Duffy, Joshua Y. L. Jones, Yasaman K. Yazdi
A more complete understanding of entanglement entropy in a covariant manner could inform the search for quantum gravity. We build on work in this direction by extending previous re…