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Roberto Stassi
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Spontaneous conversion from virtual to real photons in the ultrastrong-coupling regime
R Stassi, A Ridolfo, O Di Stefano, MJ Hartmann, S Savasta
Physical review letters 110 (24), 243601, 2013
1632013
Resolution of gauge ambiguities in ultrastrong-coupling cavity quantum electrodynamics
O Di Stefano, A Settineri, V Macrì, L Garziano, R Stassi, S Savasta, F Nori
Nature Physics 15 (8), 803-808, 2019
1492019
Multiphoton quantum Rabi oscillations in ultrastrong cavity QED
L Garziano, R Stassi, V Macrì, AF Kockum, S Savasta, F Nori
Physical Review A 92 (6), 063830, 2015
1382015
One photon can simultaneously excite two or more atoms
L Garziano, V Macrì, R Stassi, O Di Stefano, F Nori, S Savasta
Physical review letters 117 (4), 043601, 2016
1362016
Ultrastrong coupling of plasmons and excitons in a nanoshell
A Cacciola, O Di Stefano, R Stassi, R Saija, S Savasta
ACS nano 8 (11), 11483-11492, 2014
892014
Quantum nonlinear optics without photons
R Stassi, V Macrì, AF Kockum, O Di Stefano, A Miranowicz, S Savasta, ...
Physical Review A 96 (2), 023818, 2017
752017
Switching on and off of ultrastrong light-matter interaction: Photon statistics of quantum vacuum radiation
L Garziano, A Ridolfo, R Stassi, O Di Stefano, S Savasta
Physical Review A 88 (6), 063829, 2013
742013
Vacuum-induced symmetry breaking in a superconducting quantum circuit
L Garziano, R Stassi, A Ridolfo, O Di Stefano, S Savasta
Physical Review A 90 (4), 043817, 2014
632014
Feynman-diagrams approach to the quantum Rabi model for ultrastrong cavity QED: stimulated emission and reabsorption of virtual particles dressing a physical excitation
O Di Stefano, R Stassi, L Garziano, AF Kockum, S Savasta, F Nori
New Journal of Physics 19 (5), 053010, 2017
552017
Interaction of mechanical oscillators mediated by the exchange of virtual photon pairs
O Di Stefano, A Settineri, V Macrì, A Ridolfo, R Stassi, AF Kockum, ...
Physical Review Letters 122 (3), 030402, 2019
542019
Scully-Lamb quantum laser model for parity-time-symmetric whispering-gallery microcavities: Gain saturation effects and nonreciprocity
II Arkhipov, A Miranowicz, O Di Stefano, R Stassi, S Savasta, F Nori, ...
Physical Review A 99 (5), 053806, 2019
482019
Long-lasting quantum memories: Extending the coherence time of superconducting artificial atoms in the ultrastrong-coupling regime
R Stassi, F Nori
Phys. Rev. A 97, 033823, 2018
48*2018
Output Field-Quadrature Measurements and Squeezing in Ultrastrong Cavity-QED
R Stassi, S Savasta, L Garziano, B Spagnolo, F Nori
New J. Phys. 18 (123005), 2016
472016
Quantum control and long-range quantum correlations in dynamical Casimir arrays
R Stassi, S De Liberato, L Garziano, B Spagnolo, S Savasta
Physical Review A 92 (1), 013830, 2015
322015
Scalable quantum computer with superconducting circuits in the ultrastrong coupling regime
R Stassi, M Cirio, F Nori
npj Quantum Information 6 (1), 67, 2020
302020
Fast binomial-code holonomic quantum computation with ultrastrong light-matter coupling
YH Chen, W Qin, R Stassi, X Wang, F Nori
Physical Review Research 3 (3), 033275, 2021
23*2021
Single-step arbitrary control of mechanical quantum states in ultrastrong optomechanics
L Garziano, R Stassi, V Macrí, S Savasta, O Di Stefano
Physical Review A 91 (2), 023809, 2015
172015
Delayed-choice quantum control of light-matter interaction
R Stassi, A Ridolfo, S Savasta, R Girlanda, O Di Stefano
Europhysics Letters 99 (2), 24003, 2012
112012
Fault-tolerant multi-qubit geometric entangling gates using photonic cat qubits
YH Chen, R Stassi, W Qin, A Miranowicz, F Nori
arXiv preprint arXiv:2109.04643 30, 204-208, 2021
72021
Interference with coupled microcavities: Optical analog of spin rotations
O Di Stefano, R Stassi, A Ridolfo, S Patane, S Savasta
Physical Review B 84 (8), 085324, 2011
42011
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