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Search Publications by: Lijun Ma (Fed)

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Displaying 1 - 25 of 81

Disseminable single-photon source for quantum radiometry

December 24, 2024
Author(s)
Hristina Georgieva, Thomas Gerrits, Lijun Ma, Riley Dawkins, Marco Lopez, Oliver Slattery, Sven Rodt, Stephan Reitzenstein, Alan Migdall, Stefan Kueck
We present a disseminable single-photon source based on an InGaAs quantum dot in a micro-mesa. This source achieves a maximum photon flux of 2.8 million photons/s at a wavelength of 929.7 nm, with a multi-photon suppression of g(2)(0) = 0.22. The

100-km entanglement distribution with coexisting quantum and classical signals in a single fiber

July 5, 2024
Author(s)
Anouar Rahmouni, Paulina Kuo, Ya-Shian Li-Baboud, Ivan Burenkov, Yicheng Shi, Jabir Marakkarakath Vadakkepurayil, Nijil Lal Cheriya Koyyottummal, Dileep Reddy, Mheni Merzouki, Lijun Ma, Abdella Battou, Sergey Polyakov, Oliver T. Slattery, Thomas Gerrits
The development of prototype metropolitan-scale quantum networks is underway and entails transmitting quantum information via single photons through deployed optical fibers spanning several tens of kilometers. Among the major challenges in metropolitan

Entangled photon pair generation in an integrated SiC platform

May 9, 2024
Author(s)
Anouar Rahmouni, Lijun Ma, Ruixuan Wang, Jingwei Li, Xiao Tang, Thomas Gerrits, Qing Li, Oliver T. Slattery
Entanglement plays a vital role in quantum information processing. Owing to its unique material properties, silicon carbide recently emerged as a promising candidate for the scalable implementation of advanced quantum information processing capabilities

Hybrid Quantum-Edge Computing: A New Computing Paradigm

October 4, 2022
Author(s)
Lijun Ma, Leah Ding
Edge computing network and quantum network are two emerging technologies in current communication fields. Edge computing has emerged to support the computational demand of delay-sensitive applications in which substantial computing and storage are deployed

Portable polarization-entangled photon source & receiver toolset for quantum network metrology

October 4, 2022
Author(s)
Anouar Rahmouni, Thomas Gerrits, Paulina Kuo, Dileep Reddy, Lijun Ma, Xiao Tang, Oliver T. Slattery
A quantum network will consist of many physically separated nodes connected by quantum communication channels that distribute entanglement between them. Such nodes will require mechanisms for the generation, routing, and measurement of quantum states to

Towards entangled photon pair generation from SiC-based microring resonator

October 4, 2022
Author(s)
Anouar Rahmouni, Lijun Ma, Xiao Tang, Thomas Gerrits, Lutong Cai, Qing Li, Oliver T. Slattery
Entangled photon sources are fundamental building blocks for quantum communication and quantum networks. Recently, silicon carbide emerged as a promising material for integrated quantum devices since it is CMOS compatible with favorable mechanical

Terahertz Electromagnetically Induced Transparency in Cesium Atoms

September 14, 2020
Author(s)
Sumit Bhushan, Oliver T. Slattery, Xiao Tang, Lijun Ma
We outline a proposal to realize Electromagnetically Induced Transparency (EIT) with the potential to store Terahertz (THz) optical pulses in Cesium atoms. Such a system, when experimentally realized, has a potential to make Quantum Communication possible

Optical quantum memory and its applications in quantum communication systems

January 16, 2020
Author(s)
Lijun Ma, Xiao Tang, Oliver T. Slattery
Optical quantum memory is a device that can store the quantum state of photons and retrieve it with high fidelity on demand. The device can be used to enhance performance for many quantum communication systems such as measurement device independent (MDI)

Optical Quantum Memory Applications in Quantum Communication

September 6, 2019
Author(s)
Oliver T. Slattery, Xiao Tang, Lijun Ma
Optical quantum memory is a device that can store the quantum state of photons and retrieve it with high fidelity on demand. Many approaches to quantum memory have been proposed and demonstrated. Quantum memory can be used to enhance performance in many

Background and Review of Cavity-Enhanced Spontaneous Parametric Down-Conversion

August 22, 2019
Author(s)
Oliver T. Slattery, Lijun Ma, Kevin Zong, Xiao Tang
Spontaneous parametric down-conversion (SPDC) in a nonlinear crystal has been a workhorse for the generation of entangled and correlated single-photon pairs used for quantum communications applications for nearly three decades. However, as a naturally

A Testbed for Quantum Communication and Quantum Networks

May 13, 2019
Author(s)
Lijun Ma, Abdella Battou, Xiao Tang, Oliver T. Slattery
The development of Quantum Networks is underway with significant acceleration in in recent years. Meanwhile. quantum scale devices and components such as single photon sources, detectors, memories and interfaces are ever readier to leave the laboratory

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