Large vacuum Rabi splitting in an H0 photonic crystal nanocavity-quantum dot system

Ultrastrong coupling regimes of light-matter interaction

“…Rabi splittings were demonstrated with g/ω 12 values similar to those reported by Dini et al Furthermore, by increasing the doping density, (Dupont et al, 2007) were able to observe a square-root dependence of the VRS on the total electron density (N QW n e ). Here N QW corresponds to the number of QWs and n e is the density per well, i.e., 2g ∝ N QW n e , indicating that electrons in QWs interact cooperatively as a single giant atom with cavity photons (Agarwal, 1984;Amsüss et al, 2011;Dicke, 1954;Kaluzny et al, 1983;Tabuchi et al, 2014;Zhang et al, 2014b). A coupling of g/ω 12 = 0.17 at zero detuning ω = ω 12 was achieved at the highest electron density (Dupont et al, 2007).…”

“…In recent years, a new platform of coherent lightmatter interaction has been developed by combining magnetic fields from cavity photons and spin waves in magnetic materials (Huebl et al, 2013;Tabuchi et al, 2014;Zhang et al, 2014b). This quantum hybrid system consists of microwave photons residing in a resonant cavity, which interact with a spin wave in a ferromagnetic (ferri)magnetic material, as shown in Fig.…”

“…The rms magnetic field generated in the cavity in its ground state is given by B 2 1/2 = µ 0 ω/2V c , with ω being the cavity frequency, V c the mode volume occupied by the cavity mode, and µ 0 the vacuum permeability. The single-spin coupling strength is calculated to be (Tabuchi et al, 2014;Zhang et al, 2014b)…”

“…The dotted lines at g/ω 0.1 and g ω mark the beginning of the USC and DSC regimes, respectively. References for the data, chronological: atoms in optical cavities , (Turchette et al, 1995), (Hood et al, 1998), (Colombe et al, 2007) (Thompson et al, 2013), (Tiecke et al, 2014); atoms in microwave cavities (Brune et al, 1994), (Brune et al, 1996), (Maître et al, 1997), (Brune et al, 2008); superconducting qubits , (Chiorescu et al, 2004), (Johansson et al, 2006), , , (Baust et al, 2016), (Yoshihara et al, 2017b); quantum dots (Reithmaier et al, 2004), (Reinhard et al, 2012), (Takamiya et al, 2013), (Kelaita et al, 2017), (Mi et al, 2017), (Stockklauser et al, 2017); exciton polaritons (Weisbuch et al, 1992), (Bloch et al, 1998), (Bellessa et al, 2004), (Wei et al, 2013), (Kéna-Cohen et al, 2013), (Gambino et al, 2014); intersubband polaritons (Dupont et al, 2003), (Dupont et al, 2007), (Todorov et al, 2010a), (Delteil et al, 2012), (Askenazi et al, 2014); and electron cyclotron resonance , , (Maissen et al, 2014), (Bayer et al, 2017). and quantum optics.…”

Method for generating a photonic NOON state with quantum dots in coupled nanocavities

“…5(c) (i.e. Q ≈ 0.18 × 10 6 for ω 1 (≈ ω 2 ) = 1.3 eV and g 2P = 50 µeV), is challenging in current technology but will be reached in future 59,60 . To summarize this section, the 2002-GES can be exclusively excited in the system in both non-deterministic and deterministic ways by the resonant laser excitation, if it is prepared as an eigenstate by appropriate cavity tuning (Eq.…”