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Search Publications by: Lijun Ma (Fed)

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Displaying 26 - 50 of 156

Noise Reduction in Optically Controlled Quantum Memory

May 7, 2018
Author(s)
Lijun Ma, Oliver T. Slattery, Xiao Tang
Quantum memory is an essential device for quantum communications systems and quantum computers. An important category of quantum memory, called Optically controlled quantum memory, uses a strong classical beam to control the storage and re-emission of a

Optical quantum memory based on electromagnetically induced transparency

February 20, 2017
Author(s)
Lijun Ma, Oliver T. Slattery, Xiao Tang
Electromagnetically induced transparency (EIT) is a promising approach to implement quantum memory in quantum communication and quantum computing applications. In this paper, following a brief overview of the main approaches to quantum memory, we provide

Comparing the Linewidths from Single-Pass SPDC and Singly-Resonant Cavity SPDC

September 3, 2015
Author(s)
Oliver T. Slattery, Lijun Ma, Paulina S. Kuo, Xiao Tang
Spontaneous parametric down-conversion (SPDC) is a common method to generate entangled photon pairs for use in quantum communications. The generated single photon linewidth is a critical issue for photon-atom interactions in quantum memory applications. We

EIT Quantum Memory with Cs Atomic Vapor for Quantum Communication

September 1, 2015
Author(s)
Lijun Ma, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang
Quantum memory is a key device in the implementation of quantum repeaters for quantum communications and quantum networks. We demonstrated a quantum memory based on electromagnetically-induced transparency (EIT) in a warm cesium atomic cell. The quantum

Frequency Correlated Bi-Photon Spectroscopy using a Tunable Up-Conversion Detector

May 21, 2013
Author(s)
Oliver T. Slattery, Lijun Ma, Paulina S. Kuo, Yong-Su Kim, Xiao Tang
We demonstrated a scheme for frequency correlated bi-photon spectroscopy using a strongly non- degenerate down-conversion source and a tunable up-conversion detector. In this scheme, the spectral function at one wavelength range of a remote object can be