Multi-contact switch using double-dressing regularity of probe, fluorescence, and six-wave mixing in a Rydberg atom

Abstract

In this paper, we study the realization of a multi-contact switch using the double-dressing regularity of probe, fluorescence, and six-wave mixing signals in a five-level Rb atomic system. For the first time, we compare the dressing regularity of Rydberg states by observing electromagnetically induced transparency and signals. With the scanning probe and dressing fields, both large and small line shifts in signals are observed. The small line shifts are induced by double-dressed line shifts. Also, the big line shifts result from the Rydberg dressing. In addition, with an increase in the principal quantum number of the Rydberg state, all the signals become weaker, while the line shifts of the signals become enhanced. Using the regularity in line shifts of the signals and an acoustic optical modulator to modulate the frequency detuning, we can realize a multi-contact switch action and fast conversion between different contacts.

Preparation of Steady 3D Dark State Entanglement in Dissipative Rydberg Atoms via Electromagnetic Induced Transparency

“…In experiment, the laser beams required in this protocol can be derived from external cavity semiconductor lasers (ECDLs), which are applied in many experimental schemes related to Rydberg atom. [67][68][69] The coupled Rabi frequencies of the lasers and the corresponding transitions are Ω i = 𝜇 i E i ∕ℏ, where 𝜇 i is the electronic dipole moment between different energy levels, 𝜇 i ∝ √ 3𝜀 0 ℏ𝜆 3 (2J ′ + 1)∕32𝜋 4 𝜏(2J + 1); 𝜏 ∝ n 3 is the lifetime of energy level; E i is the electric field intensity of laser beam i. We can conclude that Ω i ∝ n −3∕2 .…”

“…[67] The mapping signals of strong vdW interactions induced Rydberg blockade information and three coexisting EIT windows based on Rydberg blockade have been observed in experiment. [68] Moreover, in the scheme, [69] by observing EIT and signals in the dressing regularity of a five-level 85 Rb atomic system, the dressing regularity of Rydberg states has been compared, and the regularity can be used to realize multi-contact switch. On the other hand, the experimental EIT process studied well in refs.…”

Generation of Competitive and Coexisting Two Pairs of Biphotons in Single Hot Atomic Vapor Cell

“…We solve the density-matrix equations and get elements (0) ,… (3) step by step. [28] The third-order nonlinear susceptibility…”

“…We solve the density‐matrix equations and get elements ρ (0) ,… ρ (3) step by step. [ 28 ] The third‐order nonlinear susceptibility and of SFWM 1 and SFWM 2 can be where d 2 and D 2 are the terms of , d 3 and D 3 are the terms of ; N is atomic density; μ ij are the electric dipole matrix elements; ε 0 is the vacuum permittivity; ℏ is Planck constant; ∆ i = ω ij − ω i is detuning defined as the difference between the resonant transition frequency ω ij and laser frequency ω i of E i ; Γ ij = ( Γ i + Γ j )/2 is the decoherence rate between | i > and | j >; δ i represents the deviations window around the corresponding central frequency ϖ Si of generated photons, and therefore, ω Si can be written as ω Si = ϖ Si + δ i ( i = 1, 2, 3) with | δ i |≪ ω Si . When we only consider the strong dressing effect of E 2 , the terms d 2/3 and D 2/3 can express as d 2/3 = | Ω 2 2 |/( δ 2/3 + Δ 2 − i Γ 41 ); D 2 = δ 2 + Δ 2 − i Γ 41 ; D 3 = δ 3 + Δ 3 − i Γ 41 ; Ω i = μ ij E i /ℏ is the Rabi frequency.…”

Preparation, Structure, Photoluminescent and Semiconductive Properties, and Theoretical Calculation of a Mononuclear Nickel Complex with 3-Hydroxy-2- Methylquinoline-4-Carboxylato Ligand

“…In recent years, metallo-organic coordination polymers have attracted considerable interest due to their diverse structures and potential applications in fluorescence, magnetic materials, gas adsorption, catalysis and medicine and so forth. [1][2][3][4][5][6] The synthesis of coordination polymers with specific functions has gradually become a research hotspot in the field of material chemistry. 7 From the perspective of crystal engineering, the most useful and facile way to construct coordination complexes is to adopt a suitable ligand to connect metal centers.…”