Robert Malaney
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View article: Stokes Parameters and Dual Classical-Quantum Signaling
Stokes Parameters and Dual Classical-Quantum Signaling Open
Catering to emerging satellite-based free-space optical (FSO) communication networks and exploiting polarization encoding via Stokes operators, we propose a novel simultaneous quantum-classical communications (SQCC) protocol. The protocol …
View article: Obfuscated Quantum and Post-Quantum Cryptography
Obfuscated Quantum and Post-Quantum Cryptography Open
In this work, we present an experimental deployment of a new design for combined quantum key distribution (QKD) and post-quantum cryptography (PQC). Novel to our system is the dynamic obfuscation of the QKD-PQC sequence of operations, the …
View article: Enhanced Simultaneous Quantum-Classical Communications Under Composable Security
Enhanced Simultaneous Quantum-Classical Communications Under Composable Security Open
Simultaneous quantum-classical communications (SQCC) protocols are a family of continuous-variable quantum key distribution (CV-QKD) protocols which allow for quantum and classical symbols to be integrated concurrently on the same optical …
View article: Error-mitigated multi-layer quantum routing
Error-mitigated multi-layer quantum routing Open
Quantum routers direct a quantum signal from one input path to a quantum superposition of multiple output paths and are considered important elements of future quantum networks. To extend the scalability of quantum networks, multi-layer qu…
View article: Combined Quantum and Post-Quantum Security for Earth-Satellite Channels
Combined Quantum and Post-Quantum Security for Earth-Satellite Channels Open
Experimental deployment of quantum communication over Earth-satellite channels opens the way to a secure global quantum Internet. In this work, we present results from a real-time prototype quantum key distribution (QKD) system, which enta…
View article: Machine Learning for Phase Estimation in Satellite-to-Earth Quantum Communication
Machine Learning for Phase Estimation in Satellite-to-Earth Quantum Communication Open
A global continuous-variable quantum key distribution (CV-QKD) network can be established using a series of satellite-to-Earth channels. Increased performance in such a network is provided by performing coherent measurement of the optical …
View article: Quantum-enhanced clock synchronization using prior statistical information
Quantum-enhanced clock synchronization using prior statistical information Open
Optical frequency combs (OFCs) are paving the way for an unprecedented level of precision in synchronizing optical clocks over free-space. However, the conventional intensity-based strategy for estimating the timing offset between two OFCs…
View article: Classical and quantum frequency combs for satellite-based clock synchronization
Classical and quantum frequency combs for satellite-based clock synchronization Open
The next generation of space-based networks for communications, sensing, and navigation will contain optical clocks embedded within satellites. To fully realize the capabilities of such clocks, high-precision clock synchronization across t…
View article: Satellite-Terrestrial Quantum Networks and the Global Quantum Internet
Satellite-Terrestrial Quantum Networks and the Global Quantum Internet Open
This paper will explore the design and implementation of quantum networks in\nspace integrated with quantum networks on Earth. We propose a three-layer\napproach, involving GEO and LEO satellites integrated with terrestrial ground\nstation…
View article: Error-Mitigated Multi-Layer Quantum Routing
Error-Mitigated Multi-Layer Quantum Routing Open
Due to the numerous limitations of current quantum devices, quantum error mitigation methods become potential solutions for realizing practical quantum applications in the near term. Zero-Noise Extrapolation (ZNE) and Clifford Data Regress…
View article: Exploiting Spatial Diversity in Earth-to-Satellite Quantum-Classical Communications
Exploiting Spatial Diversity in Earth-to-Satellite Quantum-Classical Communications Open
Despite being an integral part of the vision of quantum Internet, Earth-to-satellite (uplink) quantum communications have been considered more challenging than their satellite-to-Earth (downlink) counterparts due to the severe channel-loss…
View article: Classical and Quantum Frequency Combs for Satellite-based Clock Synchronization
Classical and Quantum Frequency Combs for Satellite-based Clock Synchronization Open
The next generation of space-based networks will contain optical clocks embedded within satellites. To fully realize the capabilities of such clocks, high-precision clock synchronization across the networks will be necessary. Current exper…
View article: Quantum-Amplified Simultaneous Quantum-Classical Communications
Quantum-Amplified Simultaneous Quantum-Classical Communications Open
Classical free-space optical (FSO) communication promises massive data throughput rates relative to traditional wireless technologies - an attractive outcome now being pursued in the context of satellite-ground, inter-satellite and deep-sp…
View article: Error-Mitigated Quantum Random Access Memory
Error-Mitigated Quantum Random Access Memory Open
As an alternative to quantum error correction, quantum error mitigation methods, including Zero-Noise Extrapolation (ZNE), have been proposed to alleviate run-time errors in current noisy quantum devices. In this work, we propose a modifie…
View article: Classical-quantum dual encoding for laser communications in space
Classical-quantum dual encoding for laser communications in space Open
In typical laser communications classical information is encoded by modulating the amplitude of the laser beam and measured via direct detection. We add a layer of security using quantum physics to this standard scheme, applicable to free-…
View article: Quantum super-resolution with balanced homodyne detection in low-earth-orbit
Quantum super-resolution with balanced homodyne detection in low-earth-orbit Open
Quantum super-resolution involves resolving two sources below the Rayleigh limit using quantum optics. Such a technique would allow high-precision inter-satellite positioning and tracking on communication and navigation constellations. Due…
View article: A Survey of Machine Learning Assisted Continuous-Variable Quantum Key Distribution
A Survey of Machine Learning Assisted Continuous-Variable Quantum Key Distribution Open
Continuous-variable quantum key distribution (CV-QKD) shows potential for the rapid development of an information-theoretic secure global communication network; however, the complexities of CV-QKD implementation remain a restrictive factor…
View article: A Survey of Machine Learning Assisted Continuous-Variable Quantum Key Distribution
A Survey of Machine Learning Assisted Continuous-Variable Quantum Key Distribution Open
Continuous-variable quantum key distribution (CV-QKD) shows potential for the rapid development of an information-theoretic secure global communications network; however, the complexities of CV-QKD implementation remain a restrictive facto…
View article: Quantum Key Distribution Using a Quantum Emitter in Hexagonal Boron Nitride
Quantum Key Distribution Using a Quantum Emitter in Hexagonal Boron Nitride Open
Quantum key distribution (QKD) is considered the most immediate application to be widely implemented among a variety of potential quantum technologies. QKD enables sharing secret keys between distant users by using photons as information c…
View article: Quantum Super-Resolution with Balanced Homodyne Detection in Low-Earth-Orbit
Quantum Super-Resolution with Balanced Homodyne Detection in Low-Earth-Orbit Open
Quantum super-resolution involves resolving two sources below the Rayleigh limit using quantum optics. Such a technique would allow high-precision inter-satellite positioning and tracking on communication and navigation constellations. Due…
View article: LEO Clock Synchronization with Entangled Light
LEO Clock Synchronization with Entangled Light Open
Precision navigation and timing, very-long-baseline interferometry, next-generation communication, sensing, and tests of fundamental physics all require a highly synchronized network of clocks. With the advance of highly-accurate optical a…
View article: Phase Correction using Deep Learning for Satellite-to-Ground CV-QKD
Phase Correction using Deep Learning for Satellite-to-Ground CV-QKD Open
Coherent measurement of quantum signals used for continuous-variable (CV) quantum key distribution (QKD) across satellite-to-ground channels requires compensation of phase wavefront distortions caused by atmospheric turbulence. One compens…
View article: Error-Mitigated Quantum Routing on Noisy Devices
Error-Mitigated Quantum Routing on Noisy Devices Open
With sub-threshold quantum error correction on quantum hardware still out of reach, quantum error mitigation methods are currently deemed an attractive option for implementing certain applications on near-term noisy quantum devices. One su…
View article: Quantum Key Distribution Using a Quantum Emitter in Hexagonal Boron Nitride
Quantum Key Distribution Using a Quantum Emitter in Hexagonal Boron Nitride Open
Quantum Key Distribution (QKD) is considered the most immediate application to be widely implemented amongst a variety of potential quantum technologies. QKD enables sharing secret keys between distant users, using photons as information c…
View article: Entanglement of Signal Paths via Noisy Superconducting Quantum Devices
Entanglement of Signal Paths via Noisy Superconducting Quantum Devices Open
Quantum routers will provide for important functionality in emerging quantum networks, and the deployment of quantum routing in real networks will initially be realized on low-complexity (few-qubit) noisy quantum devices. A true working qu…
View article: Quantum Super-resolution in Low-Earth-Orbit
Quantum Super-resolution in Low-Earth-Orbit Open
Super-resolution involves resolving two incoherent sources beyond the Rayleigh limit. We show that a balanced homodyne detection apparatus in low-earth-orbit, despite quantum noise sources, can achieve sensitivity beyond this limit. Creati…
View article: Darknet Traffic Analysis: Investigating the Impact of Modified Tor Traffic on Onion Service Traffic Classification
Darknet Traffic Analysis: Investigating the Impact of Modified Tor Traffic on Onion Service Traffic Classification Open
Classifying network traffic is important for traffic shaping and monitoring. In the last two decades, with the emergence of privacy concerns, the importance of privacy-preserving technologies has risen. The Tor network, which provides anon…
View article: Quantum Routing for Emerging Quantum Networks
Quantum Routing for Emerging Quantum Networks Open
Quantum routing, the entanglement of an input quantum signal over multiple output paths, will be an important aspect of future quantum networks. Implementation of such routing in emerging quantum networks via the noisy quantum devices curr…
View article: A Three-Mode Erasure Code for Continuous Variable Quantum Communications
A Three-Mode Erasure Code for Continuous Variable Quantum Communications Open
Quantum states of light being transmitted via realistic free-space channels often suffer erasure errors due to several factors such as coupling inefficiencies between transmitter and receiver. In this work, an error correction code capable…