30 citations · 85 across the 7 of their papers we have counts for
7 papers
Gaussian states in quantum field theory: Exact representations of relative phase in superpositions of Gaussian states
Nicholas Funai
Gaussian quantum mechanics is a powerful tool regularly used in quantum optics to model linear and quadratic Hamiltonians efficiently. Recent interest in qubit-CV hybrid models has…
Emergent metric from wavelet-transformed quantum field theory
Šimon Vedl, Daniel J. George, Fil Simovic +5
We introduce a method of reverse holography by which a bulk metric is shown to arise from locally computable multiscale correlations of a boundary quantum field theory (QFT). The m…
Grand Unification of All Discrete Wigner Functions on Phase Space
Lucky K. Antonopoulos, Dominic G. Lewis, Jack Davis +2
Wigner functions help visualise quantum states and dynamics while supporting quantitative analysis in quantum information. In the discrete setting, many inequivalent constructions…
Locality and entanglement harvesting in covariantly bandlimited scalar fields
Nicholas Funai, Nicolas C. Menicucci
Considerations of high energies in quantum field theories on smooth manifolds have led to generalized uncertainty principles and the possibility of a physical minimal length in qua…
Faster-than-light signalling in the rotating-wave approximation
Nicholas Funai, Eduardo Martin-Martinez
We present new results on the causality violations introduced by the rotating wave approximation commonly used in quantum optics and high-energy physics. We find that the causality…
vs : Gauge invariance in quantum optics
Nicholas Funai, Jorma Louko, Eduardo Martin-Martinez
We compare the predictions of the fundamentally motivated minimal coupling () and the ubiquitous dipole coupling ($\hat{\boldsymbol{x…
Engineering negative stress-energy densities with quantum energy teleportation
Nicholas Funai, Eduardo Martin-Martinez
We use quantum energy teleportation in the light-matter interaction as an operational means to create quantum field states that violate energy conditions and have negative local st…