96 citations · 233 across the 15 of their papers we have counts for
14 papers · 1 filter
Driven-dissipative entanglement of distant giant atoms
Aziza Almanakly, Ariadna Soro, Alejandro Vivas-Viaña +15
Quantum interconnects distribute entanglement via controlled light-matter interactions for quantum computing and sensing applications. Many entanglement generation schemes use cohe…
Deterministic single-photon source over the terahertz regime
Caspar Groiseau, Miguel Á. Martínez-García, Diego Martín-Cano +1
The terahertz (THz) regime still lacks a source capable of emitting single photons deterministically. Here, we propose an on-demand THz single-photon source, triggered by a sequenc…
Generation of Large Kitten states via thermally driven dissipative freezing
Caspar Groiseau
We show that one can exploit the representation of the Dicke state with magnetic quantum number in orthogonal bases to increase the probability of producing a large Kitten stat…
Single-photon source over the terahertz regime
Caspar Groiseau, Antonio I. Fernández-Domínguez, Diego Martín-Cano +1
We present a proposal for a tunable source of single photons operating in the terahertz (THz) regime. This scheme transforms incident visible photons into quantum THz radiation by…
Parrondo's paradox for discrete-time quantum walks in momentum space
Georg Trautmann, Caspar Groiseau, Sandro Wimberger
We investigate the possibility of implementing a sequence of quantum walks whose probability distributions give an overall positive winning probability, while it is negative for th…
Light-shift induced behaviors observed in momentum-space quantum walks
Nikolai Bolik, Caspar Groiseau, Jerry H. Clark +5
Over the last decade there have been many advances in studies of quantum walks (QWs) including a momentum-space QW recently realized in our spinor Bose-Einstein condensate system.…
Quantum to Classical Walk Transitions Tuned by Spontaneous Emissions
J. H. Clark, C. Groiseau, Z. N. Shaw +5
We have realized a quantum walk in momentum space with a rubidium spinor Bose-Einstein condensate by applying a periodic kicking potential as a walk operator and a resonant microwa…
Generation of Spin Cat States in an Engineered Dicke Model
Caspar Groiseau, Stuart J. Masson, Scott Parkins
We study trajectories of collective spin states of an ensemble of spinors. The spinors considered here are either trapped ions in free space or atoms confined in a cavity, both sys…
Deterministic single-atom source of quasi-superradiant -photon pulses
Caspar Groiseau, Alexander E. J. Elliott, Stuart J. Masson +1
We propose a single-atom, cavity quantum electrodynamics system, compatible with recently demonstrated, fiber-integrated micro- and nano-cavity setups, for the on-demand production…
Quantum search with a continuous-time quantum walk in momentum space
Michele Delvecchio, Caspar Groiseau, Francesco Petiziol +2
The atom-optics kicked rotor can be used to prepare specific momentum distributions on a discrete basis set. We implement a continuous-time quantum walk and a quantum search protoc…
Spontaneous Emission in Quantum Walks of a Kicked Bose-Einstein Condensate
Caspar Groiseau, Sandro Wimberger
We analytically investigate the recently proposed and implemented discrete-time quantum walk based on a kicked Bose-Einstein condensate. We extend previous work on the effective dy…
Experimental realization of a momentum-space quantum walk
Siamak Dadras, Alexander Gresch, Caspar Groiseau +2
We report on a discrete-time quantum walk that uses the momentum of ultra-cold rubidium-87 atoms as the walk space and two internal atomic states as the coin degree of freedom. Eac…
Quantum Walks of kicked Bose-Einstein condensates
Caspar Groiseau, Alexander Gresch, Sandro Wimberger
We analytically investigate the recently proposed and implemented discrete-time quantum walk based on kicked ultra-cold atoms. We show how the internal level structure of the kicke…
Quantum Walk in Momentum Space with a Bose-Einstein Condensate
Siamak Dadras, Alexander Gresch, Caspar Groiseau +2
We present a discrete-time, one-dimensional quantum walk based on the entanglement between the momentum of ultracold rubidium atoms (the walk space) and two internal atomic states…