177 citations · 1.2k across the 19 of their papers we have counts for
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quant-ph2016★ 60 cited
Cutting Feynman Loops in Ultrastrong Cavity QED: Stimulated Emission and Reabsorption of Virtual Particles Dressing a Physical Excitation
Omar Di Stefano, Roberto Stassi, Luigi Garziano +3
In quantum field theory, bare particles are dressed by a cloud of virtual particles to form physical particles. The virtual particles affect properties such as the mass and charge…
quant-ph2016★ 177 cited
A Single Photon Can Simultaneously Excite Two or More Atoms
Luigi Garziano, Roberto Stassi, Vincenzo Macrì +3
We consider two separate atoms interacting with a single-mode optical resonator. When the frequency of the resonator field is twice the atomic transition frequency, we show that th…