One of the most exciting and debated aspects polariton chemistry is possibility that chemical reactions can be catalyzed by vibrational strong coupling (VSC) with confined optical modes in absence external illumination. Here, we report an attempt to reproduce enhanced rate cyanate ion hydrolysis reported Hiura et al. [chemRxiv:7234721 (2019)] when collective OH stretching vibrations water (whic...

Squeezed states of harmonic oscillators are a central resource for continuous-variable quantum sensing, computation, and communication. Here, we propose method the generation very good approximations to highly squeezed vacuum with low excess antisqueezing using only few oscillator-qubit coupling gates through Rabi-type interaction Hamiltonian. This can be implemented several different methods, ...

We study the dependence of vacuum Rabi splitting (VRS) on frequency disorder, vibrations, near-field effects and density in molecular polaritonics. In mesoscopic limit, static disorder alone can already introduce a loss mechanism from polaritonic states into dark state reservoir, which we quantitatively describe, providing an analytical scaling VRS with level disorder. Disorder additionally spl...

We theoretically study the absorption in grating coupled quantum wells in a cavity. We describe the coupling between the three oscillators present in the structure: the intersubband transition, the grating and cavity modes. We show that optical mode anticrossings should be observed. The splitting between the cavity mode and the intersubband transition is calculated but its experimental observat...

We develop a general theory of the quantum vacuum radiation generated by an arbitrary time modulation of the vacuum Rabi frequency of an intersubband transition in a doped quantum well system embedded in a planar microcavity. Both nonradiative and radiative losses are included within an input-output quantum Langevin framework. The intensity and the spectral signatures of the extra-cavity emissi...

Vacuum fluctuations are one of the most distinctive aspects of quantum optics, being the trigger of multiple nonclassical phenomena. Thus, platforms like resonant cavities and photonic crystals that enable the inhibition and manipulation of vacuum fluctuations have been key to our ability to control light-matter interactions (e.g., the decay of quantum emitters). Here, we theoretically demonstr...

We have observed the coherent exchange of a single energy quantum between a flux qubit and a superconducting LC circuit acting as a quantum harmonic oscillator. The exchange of an energy quantum is known as the vacuum Rabi oscillation: the qubit is oscillating between the excited state and the ground state and the oscillator between the vacuum state and the first excited state. We also show tha...