Photon pair production by STIRAP in ultrastrongly coupled matter-radiation systems

Ridolfo, A.; Falci, G.; Pellegrino, Francesco; Maccarrone, G.; Paladino, E.

doi:10.1140/epjst/e2018-800076-1

Cited by 10 publications

(11 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been shown that USC can give rise to several new interesting physical effects [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Ultrastrong coupling has been achieved in a variety of cavity-QED and other hybrid condensed-matter systems, including semiconductor polaritons in quantum wells [35][36][37][38][39], superconducting quantum circuits [40][41][42][43][44][45][46][47][48][49][50][51][52][53], a terahertz metamaterial coupled to the cyclotron resonance of a two-dimensional electron gas (2DEG) [54][55][56][57][58], organic molecules [59][60][61][62][63][64], and in an optomechanical system where a plasmonic picocavity was coupled ...…”

Section: Introductionmentioning

confidence: 99%

Dissipation and thermal noise in hybrid quantum systems in the ultrastrong-coupling regime

et al. 2018

View full text Add to dashboard Cite

The interaction among the components of a hybrid quantum system is often neglected when considering the coupling of these components to an environment. However, if the interaction strength is large, this approximation leads to unphysical predictions, as has been shown for cavity-QED and optomechanical systems in the ultrastrong-coupling regime. To deal with these cases, master equations with dissipators retaining the interaction between these components have been derived for the quantum Rabi model and for the standard optomechanical Hamiltonian. In this article, we go beyond these previous derivations and present a general master equation approach for arbitrary hybrid quantum systems interacting with thermal reservoirs. Specifically, our approach can be applied to describe the dynamics of open hybrid systems with harmonic, quasi-harmonic, and anharmonic transitions. We apply our approach to study the influence of temperature on multiphoton vacuum Rabi oscillations in circuit QED. We also analyze the influence of temperature on the conversion of mechanical energy into photon pairs in an optomechanical system, which has been recently described at zero temperature. We compare our results with previous approaches, finding that these sometimes overestimate decoherence rates and understimate excited-state populations. Photonic ReservoirMatter Reservoir Photonic Reservoir Matter Reservoir LightMatter Light-Matter system

show abstract

Section: Introductionmentioning

confidence: 99%

Dissipation and thermal noise in hybrid quantum systems in the ultrastrong-coupling regime

et al. 2018

View full text Add to dashboard Cite

show abstract

“…We checked the dynamics for AAs, and we reproduced results of Fig. 3 using half of the value of g 49 . We also checked that the protocol is robust against possible inhomogeneities of the individual couplings of AAs and the possible presence of stray additional modes at multiple frequencies.…”

Section: Resultsmentioning

confidence: 99%

Ultrastrong coupling probed by Coherent Population Transfer

Falci

Ridolfo

Stefano

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

Light-matter interaction, and the understanding of the fundamental physics behind, is the scenario of emerging quantum technologies. Solid state devices allow the exploration of new regimes where ultrastrong coupling strengths are comparable to subsystem energies, and new exotic phenomena like quantum phase transitions and ground-state entanglement occur. While experiments so far provided only spectroscopic evidence of ultrastrong coupling, we propose a new dynamical protocol for detecting virtual photon pairs in the dressed eigenstates. This is the fingerprint of the violated conservation of the number of excitations, which heralds the symmetry broken by ultrastrong coupling. We show that in flux-based superconducting architectures this photon production channel can be coherently amplified by Stimulated Raman Adiabatic Passage, providing a unique tool for an unambiguous dynamical detection of ultrastrong coupling in present day hardware. This protocol could be a benchmark for control of the dynamics of ultrastrong coupling architectures, in view of applications to quantum information and microwave quantum photonics.

show abstract

“…STIRAP in superconducting nanocrcuits has been studied theoretically [27][28][29] and experimentally [30,31] since it can be used for new type of quantum gates [32] possibly resilient to solid state quantum noise [33][34][35][36][37][38]. In the USC scenario STIRAP can be used to detect virtual photons in the dressed eigenstates of the system, by coherently amplifying their conversion to real photons [16,24,25]. We consider a three-level atom (basis {|u , |g , |e }) ultrastrongly coupled to a single light mode of frequency ω c , resonant with the e.gtransition energy ε, described by the Hamiltonian…”

Section: Generation Of Two-photon Pairs By Stirapmentioning

confidence: 99%

“…where W s/p is the Stokes/pump field amplitude, τ is the delay, T is width of the pulses [16,25]. It may yield ∼ 100% coherent population transfer |0u → |2u iff Φ 0 |H c |nu = 0, i.e., the Rabi ground state contains pairs of virtual photons.…”

Section: Generation Of Two-photon Pairs By Stirapmentioning

confidence: 99%

Generation of Photon Pairs in the Light-Matter Ultrastrong Coupling Regime: From Casimir Radiation to Stimulated Raman Adiabatic Passage

Ridolfo

2019

11th Italian Quantum Information Science Conference (IQIS2018)

View full text Add to dashboard Cite

The ultrastrong coupling regime of light-matter interaction is achieved when the coupling strength is a significant fraction of the natural frequencies of the noninteracting parts. Physics in this regime has recently attracted great interest, both theoretically and experimentally being a fruitful platform to test fundamental quantum mechanics in a new non-perturbative regime, and for applications to quantum technologies.Here we discuss the generation of photon-pair states, which is a distinctive feature of this new regime, and interesting new dynamicsl effects both in optomechanics and in circuit-QED architectures.

show abstract

Photon pair production by STIRAP in ultrastrongly coupled matter-radiation systems

Cited by 10 publications

References 40 publications

Dissipation and thermal noise in hybrid quantum systems in the ultrastrong-coupling regime

Dissipation and thermal noise in hybrid quantum systems in the ultrastrong-coupling regime

Ultrastrong coupling probed by Coherent Population Transfer

Generation of Photon Pairs in the Light-Matter Ultrastrong Coupling Regime: From Casimir Radiation to Stimulated Raman Adiabatic Passage

Contact Info

Product

Resources

About