286 citations · 638 across the 19 of their papers we have counts for
20 papers · 1 filter
Optimal filtering and generation of entangled photons for quantum applications in the presence of noise
Jordan M. Thomas, Andrew R. Cameron, Akil Pathiranage +6
Filtering is commonly used in quantum optics to reject noise photons, and also to enable interference between independent photons. However, filtering the joint spectrum of photon p…
Photonic quantum information with time-bins: Principles and applications
Ashutosh Singh, Anuj Sethia, Leili Esmaeilifar +4
Long-range quantum communication, distributed quantum computing, and sensing applications require robust and reliable ways to encode transmitted quantum information. In this contex…
Analytical Modeling of Real-World Photonic Quantum Teleportation
Neil Sinclair, Samantha I. Davis, Nikolai Lauk +5
We develop analytical models for realistic photonic quantum teleportation experiments with time-bin qubits, utilizing phase space methods from quantum optics. These models yield an…
Entanglement swapping systems toward a quantum internet
Samantha I. Davis, Raju Valivarthi, Andrew Cameron +14
We demonstrate conditional entanglement swapping, i.e. teleportation of entanglement, between time-bin qubits at the telecommunication wavelength of 1536.4 nm with high fidelity of…
Multi-qubit entanglement generation with squeezed modes
Alexandru Macridin, Andrew Cameron, Cristian Pena +3
We present a hybrid continuous variable-discrete variable entanglement generation protocol using linear optics and homodyne measurements, capable of producing multiple high-fidelit…
High-rate multiplexed entanglement source based on time-bin qubits for advanced quantum networks
Andrew Mueller, Samantha Davis, Boris Korzh +7
Entanglement distribution based on time-bin qubits is an attractive option for emerging quantum networks. We demonstrate a 4.09 GHz repetition rate source of photon pairs entangled…
Entangled Photon Pair Source Demonstrator using the Quantum Instrumentation Control Kit System
Si Xie, Leandro Stefanazzi, Christina Wang +9
We report the first demonstration of using the Quantum Instrumentation and Control Kit (QICK) system on RFSoCFPGA technology to drive an entangled photon pair source and to detect…
Picosecond Synchronization of Photon Pairs through a Fiber Link between Fermilab and Argonne National Laboratories
Keshav Kapoor, Si Xie, Joaquin Chung +20
We demonstrate a three-node quantum network for C-band photon pairs using 2 pairs of 59 km of deployed fiber between Fermi and Argonne National Laboratories. The C-band pairs are d…
Design and Implementation of the Illinois Express Quantum Metropolitan Area Network
Joaquin Chung, Ely M. Eastman, Gregory S. Kanter +12
The Illinois Express Quantum Network (IEQNET) is a program to realize metropolitan scale quantum networking over deployed optical fiber using currently available technology. IEQNET…
Picosecond synchronization system for quantum networks
Raju Valivarthi, Lautaro Narváez, Samantha I. Davis +14
The operation of long-distance quantum networks requires photons to be synchronized and must account for length variations of quantum channels. We demonstrate a 200 MHz clock-rate…
Improved heralded single-photon source with a photon-number-resolving superconducting nanowire detector
Samantha I. Davis, Andrew Mueller, Raju Valivarthi +9
Deterministic generation of single photons is essential for many quantum information technologies. A bulk optical nonlinearity emitting a photon pair, where the measurement of one…
Illinois Express Quantum Network for Distributing and Controlling Entanglement on Metro-Scale
Wenji Wu, Joaquin Chung, Gregory Kanter +12
We describe an implementation of a quantum network over installed fiber in the Chicago area.We present network topology and control architecture of this network and illustrate prel…
Illinois Express Quantum Network (IEQNET): Metropolitan-scale experimental quantum networking over deployed optical fiber
Joaquin Chung, Gregory Kanter, Nikolai Lauk +11
The Illinois Express Quantum Network (IEQNET) is a program to realize metro-scale quantum networking over deployed optical fiber using currently available technology. IEQNET consis…
Teleportation Systems Towards a Quantum Internet
Raju Valivarthi, Samantha Davis, Cristian Pena +20
Quantum teleportation is essential for many quantum information technologies including long-distance quantum networks. Using fiber-coupled devices, including state-of-the-art low-n…
Measurement-device-independent quantum key distribution coexisting with classical communication
Raju Valivarthi, Prathwiraj Umesh, Caleb John +6
The possibility for quantum and classical communication to coexist on the same fibre is important for deployment and widespread adoption of quantum key distribution (QKD) and, more…
Practical quantum random number generator based on sampling vacuum fluctuations
Qiang Zhou, Raju Valivarthi, Caleb John +1
Random number generation is an enabling technology for fields as varied as Monte Carlo simulations and quantum information science. An important application is a secure quantum key…
A cost-effective measurement-device-independent quantum key distribution system for quantum networks
Raju Valivarthi, Qiang Zhou, Caleb John +6
We experimentally realize a measurement-device-independent quantum key distribution (MDI-QKD) system based on cost-effective and commercially available hardware such as distributed…
Quantum teleportation across a metropolitan fibre network
Raju Valivarthi, Marcel. li Grimau Puigibert, Qiang Zhou +7
If a photon interacts with a member of an entangled photon pair via a so-called Bell-state measurement (BSM), its state is teleported over principally arbitrary distances onto the…
Measurement-device-independent quantum key distribution: from idea towards application
Raju Valivarthi, Itzel Lucio-Martinez, Philip Chan +13
We assess the overall performance of our quantum key distribution (QKD) system implementing the measurement-device-independent (MDI) protocol using components with varying capabili…
Efficient Bell state analyzer for time-bin qubits with fast-recovery WSi superconducting single photon detectors
Raju Valivarthi, Itzel Lucio-Martinez, Allison Rubenok +9
We experimentally demonstrate a high-efficiency Bell state measurement for time-bin qubits that employs two superconducting nanowire single-photon detectors with short dead-times,…