4 papers
Quantum Simulation of Coupled Harmonic Oscillators: From Theory to Implementation
Viraj Dsouza, Weronika Golletz, Dimitrios Kranas +3
We investigate the quantum algorithm of Babbush et al. (arXiv:2303.13012v3) for simulating coupled harmonic oscillators, which promises exponential speedups over classical methods.…
Entanglement in the Schwinger effect
Dimitrios Kranas, Amaury Marchon, Silvia Pla
We analyze entanglement generated by the Schwinger effect using a mode-by-mode formalism for scalar and spinor QED in constant backgrounds. Starting from thermal initial states, we…
An introduction to nonlinear fiber optics and optical analogues to gravitational phenomena
Dimitrios Kranas, Andleeb Zahra, Friedrich König
The optical fiber is a revolutionary technology of the past century. It enables us to manipulate single modes in nonlinear interactions with precision at the quantum level without…
Recoherence, adiabaticity, and Markovianity in Gaussian maps
Dimitrios Kranas, Julien Grain, Vincent Vennin
Motivated by the recent discovery of situations where cosmological fluctuations recohere during inflation, we investigate the relationship between quantum recoherence (late-time pu…