Performance analysis of all optical-based quantum internet circuits

Abstract

A Quantum dot implanted within double-sided optical microcavity is explained and established as a critical component for all optical-based quantum internets. Due to the duality as the photonic quantum transistor and gate, the QD cavity system presents a sturdy base for the future photonic quantum network. With the help of the analytical investigation and review presented in this paper, a quantum dot cavity unit can be developed for implementing deterministic quantum gates and transistors. The maximum fidelity observed for quantum diode, router, and storage is 95.24%, 62.06%, and 90.42% without considering a noisy environment, respectively, and 62.12%, 60.36%, and 43.66% under a noisy environment, respectively. Fidelity is also calculated with varying coupling conditions (strong and weak coupling), and optimized cavity parameters are calculated. The paper also reports the work done by various researchers till date.

Entanglement generation for non-local photonic qubits using quantum dot within the optical micro-cavity

“…The cavity response (hot or cold) is controlled by the polarization of photon, the photon propagation direction inside the cavity, and the spin of the QD excess electron. It's implausible to propose a quantum circuit with only one cavity condition (hot or cold cavity) [17].…”

“…For hot cavity regime (𝑔𝑔 ≠ 0), interplay between the QD spin and photon within a cavity under practical environment can be given by Eq. (1-4) [16][17]:…”

“…Similarly, transmittance ( 𝑇𝑇 0 (ω) ), and reflectance ( R 0 (ω) ) coefficient for cold cavity ( g = 0 ) systems can be delineated. Similarly, transmittance 𝑇𝑇 0 (ω) , sideband leakage S 0 (ω) , noise N 0 (ω) and reflectance R 0 (ω) factors for cold cavity ( g = 0 ) cases can be articulated [16][17].…”