Proposal for a Deterministic Single-Atom Source of Quasisuperradiant N-Photon Pulses

Area of Science:

• Quantum physics
• Cavity quantum electrodynamics
• Atomic physics

Background:

• Fiber-integrated micro- and nanocavities are advancing quantum technologies.
• On-demand generation of specific optical states is crucial for quantum information processing.

Purpose of the Study:

• To propose a novel single-atom system for on-demand optical pulse generation.
• To demonstrate compatibility with existing fiber-integrated cavity setups.
• To enable the production of optical number-state, 0N-state, and binomial-code-state pulses.

Main Methods:

• Utilizing a single-atom cavity quantum electrodynamics system.
• Employing Raman transitions within an atomic ground-state hyperfine level.
• Operating with laser and cavity fields significantly detuned from the atomic transition.

Main Results:

• The system enables on-demand production of various optical states.
• The dynamics are reducible to a cavity-damped Tavis-Cummings model.
• Collective spin is determined by the total angular momentum of the ground hyperfine level.

Conclusions:

• The proposed system offers a viable method for generating tailored optical pulses.
• This approach integrates with current fiber-based quantum hardware.
• It advances the on-demand control of quantum states in light fields.