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28 papers · 2 filters
Quantum simulation of ultrastrongly coupled bosonic modes using superconducting circuits
S. Fedortchenko, S. Felicetti, D. Marković +5
The ground state of a pair of ultrastrongly coupled bosonic modes is predicted to be a two-mode squeezed vacuum. However, the corresponding quantum correlations are currently unobs…
Resilience of the quantum Rabi model in circuit QED
Vladimir E. Manucharyan, Alexandre Baksic, Cristiano Ciuti
In circuit quantum electrodynamics (circuit QED), an artificial "circuit atom" can couple to a quantized microwave radiation much stronger than its real atomic counterpart. The cel…
On the robustness of strongly correlated multi-photon states in frustrated driven-dissipative cavity lattices
Riccardo Rota, Wim Casteels, Cristiano Ciuti
We present a theoretical study on the robustness of multi-photon states in a frustrated lattice of coupled nonlinear optical cavities, which are described by a driven-dissipative B…
Homodyne versus photon-counting quantum trajectories for dissipative Kerr resonators with two-photon driving
Nicola Bartolo, Fabrizio Minganti, Jared Lolli +1
We investigate two different kinds of quantum trajectories for a nonlinear photon resonator subject to two-photon pumping, a configuration recently studied for the generation of ph…
Topological phases of parafermions: a model with exactly-solvable ground states
Fernando Iemini, Christophe Mora, Leonardo Mazza
Parafermions are emergent excitations that generalize Majorana fermions and can also realize topological order. In this paper we present a non-trivial and quasi-exactly-solvable mo…
Efficient quantum communications with multiplexed coherent state fingerprints
Niraj Kumar, Eleni Diamanti, Iordanis Kerenidis
We provide the first example of a communication model and a distributed task, for which there exists a realistic quantum protocol which is asymptotically more efficient than any cl…