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Gradient Echo Quantum Memory in Warm Atomic Vapor

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Published on: November 11, 2013

Digital quantum memories with symmetric pulses.

Q Y He¹, M D Reid, P D Drummond

¹Centre for Atom Optics and Ultra-fast Spectroscopy, Swinburne University, Melbourne, VIC, Australia.

|June 10, 2009

Summary

We present a digital method for quantum memories using a tunable oscillator-cavity system. This approach optimizes the interface with input pulses for efficient quantum information storage in various media.

Area of Science:

Quantum Information Science
Quantum Computing
Quantum Optics

Background:

Quantum memory is crucial for quantum information processing.
Existing quantum memory schemes face challenges in efficiency and broad applicability.
Developing robust and versatile quantum memory solutions is an active research area.

Purpose of the Study:

To propose a novel digital approach for quantum memory implementation.
To develop a generic theoretical model applicable to diverse physical systems.
To optimize the interface between quantum memory and input signals.

Main Methods:

Utilizing a single-mode oscillator-cavity model.
Shaping the coupling between the oscillator and cavity in time.

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Designing a time-symmetric input pulse for optimal interaction.

Main Results:

Demonstrated a digital control method for quantum memory.
The proposed model shows applicability to various linear storage media.
Optimized temporal coupling enhances the interface with input pulses.

Conclusions:

The digital approach offers a flexible and efficient method for quantum memory.
The generic model provides a unified framework for different quantum memory platforms.
This work paves the way for advanced quantum memory designs.