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quant-ph2022★ 15 cited
Non-Gaussian superradiant transition via three-body ultrastrong coupling
Fabrizio Minganti, Louis Garbe, Alexandre Le Boité +1
We introduce a class of quantum optical Hamiltonian characterized by three-body couplings, and propose a circuit-QED scheme based on state-of-the-art technology that implements the…
quant-ph2022★ 35 cited
Exponential precision by reaching a quantum critical point
Louis Garbe, Obinna Abah, Simone Felicetti +1
Quantum metrology shows that by exploiting nonclassical resources it is possible to overcome the fundamental limit of precision found for classical parameter-estimation protocols.…