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22 papers · 2 filters
Strong Spin Squeezing Induced by Weak Squeezing of Light inside a Cavity
Wei Qin, Ye-Hong Chen, Xin Wang +2
We propose a simple method for generating spin squeezing of atomic ensembles in a Floquet cavity subject to a weak, detuned two-photon driving. We demonstrate that {\it the weak sq…
A little bit of classical magic to achieve quantum speedup
Dagomir Kaszlikowski, Pawel Kurzynski
We introduce nebit, a classical bit with a signed probability distribution. We quantify its entropy using Szekely theorem on signed probability measures and show that classical sto…
Quantum error correction codes and absolutely maximally entangled states
Paweł Mazurek, Máté Farkas, Andrzej Grudka +2
For every stabiliser -qudit absolutely maximally entangled state, we present a method for determining the stabiliser generators and logical operators of a corresponding quantum…
Simulating ultrastrong-coupling processes breaking parity conservation in Jaynes-Cummings systems
Carlos Sánchez Muñoz, Anton Frisk Kockum, Adam Miranowicz +1
We propose the effective simulation of light-matter ultrastrong-coupling phenomena with strong-coupling systems. Recent theory and experiments have shown that the quantum Rabi Hami…
Control of anomalous diffusion of a Bose polaron
Christos Charalambous, Miguel Ángel García-March, Gorka Muñoz-Gil +2
We study the diffusive behavior of a Bose polaron immersed in a coherently coupled two-component Bose-Einstein Condensate (BEC). Polaron superdiffuses if it couples in the same man…
Atoms in separated resonators can jointly absorb a single photon
Luigi Garziano, Alessandro Ridolfo, Adam Miranowicz +3
The coherent nonlinear process where a single photon simultaneously excites two or more two-level systems (qubits) in a single-mode resonator has recently been theoretically predic…