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Updated: May 29, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
An extremely robust strong-field control of atomic coherence.
G P Djotyan1, N Sandor, J S Bakos
1Research Institute for Particle & Nuclear Physics, Budapest, Hungary. djotjan@rmki.kfki.hu
Optics Express
|September 22, 2011
Summary
This study introduces a robust method using two laser pulses to create maximum coherence in a Λ-structured atom. The technique offers controllable phase and has potential applications in various quantum phenomena.
Area of Science:
- Atomic physics
- Quantum optics
- Laser physics
Background:
- Coherence is crucial for quantum phenomena.
- Controlling atomic states with lasers is a key challenge.
- Λ-structured atoms provide a versatile platform for quantum control.
Purpose of the Study:
- To propose and analyze a scheme for creating maximum coherence in a Λ-structured atom.
- To achieve controllable phase between ground and excited states.
- To investigate the robustness of the proposed scheme.
Main Methods:
- Utilizing two short laser pulses for adiabatic creation of coherence.
- Employing a constant frequency pulse quasi-resonant with one transition.
- Using a frequency-swept pulse resonant with an adjacent transition.
Main Results:
- Achieved maximum coherence of 0.5 with controllable phase.
- Demonstrated high robustness against variations in laser parameters.
- The scheme is effective over a broad range of parameter values.
Conclusions:
- The proposed scheme provides an effective method for generating high coherence in Λ-structured atoms.
- The robustness of the scheme suggests practical feasibility.
- Potential applications include multi-photon ionization, harmonic generation, and nonlinear wave mixing.
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