A5032312060- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Frequency and Time Standards
- Atomic and Subatomic Physics Research
- Quantum optics and atomic interactions
- Quantum Mechanics and Applications
- Quantum Information and Cryptography
- Underwater Vehicles and Communication Systems
- Quantum Computing Algorithms and Architecture
- Geophysics and Sensor Technology
- Quantum-Dot Cellular Automata
- Radioactive Decay and Measurement Techniques
- IoT and Edge/Fog Computing
- Physical Unclonable Functions (PUFs) and Hardware Security
- Advanced Memory and Neural Computing
- Optical Network Technologies
- Software-Defined Networks and 5G
- Molecular Communication and Nanonetworks
- Optical Wireless Communication Technologies
- Radiation Effects in Electronics
BT Group (United Kingdom)
2021-2023
University of Birmingham
2018-2020
BT Research
2020
University of Florence
2015
We present the first direct measurement of gravity-field curvature based on three conjugated atom interferometers. Three atomic clouds launched in vertical direction are simultaneously interrogated by same interferometry sequence and used to probe gravity field at equally spaced positions. The component generated nearby source masses is measured from difference between adjacent gradient values. Curvature measurements interest geodesy studies for validation gravitational models surrounding...
Abstract Quantum based technologies have been fundamental in our world. After producing the laser and transistor, devices that shaped modern information society, possibilities enabled by ability to create manipulate individual quantum states opens door a second revolution. In this paper we explore these new bring Telecommunications industry.
We present a passive RF to optical data transfer without local oscillator using an atomic “Rydberg” receiver. demonstrate the ability detect 5G frequency carrier wave (3.5 GHz) and decode digital from use of modulation signal. The encoding decoding are achieved intermediate (IF). rubidium vapor detects changes in wave's amplitude, which comes mixing IF onto carrier. then upconverts into domain for detection. Using this technique extraction, we achieve rates up 238 kbps with variety schemes.
Abstract We realize an experimental facility for cooling and trapping strontium (Sr) atoms measure the Landé g factor of 3 D 1 88 Sr. Thanks to a novel repumping scheme with P 2 → S 0 combination permanent magnets based self-assembled Zeeman slower, peak atom number in continuously repumped blue magneto-optical trap is enhanced by 15 respect non-repumping case, reaches ∼1 billion. Furthermore, using resolved-sideband spectroscopy, measured be 0.4995(88) showing good agreement theoretical...
Abstract The security of data communications is one the crucial challenges that our society facing today. Quantum Key Distribution (QKD) most prominent methods for guaranteeing ultimate based on laws quantum physics. In this work, results obtained during Italian Industry 4.0 Testbed (II4QuTe) project are reported where authors realised a QKD testbed securely connecting Competence Manufacturing (CIM4.0) located in Torino and TIM edge node 10 km away from testbed. accommodates server providing...
Significant progress has been made in recent years demonstrating an all-optical high sensitivity Radio Frequency (RF) sensor exploiting the Electromagnetically Induced Transparency (EIT) effect atomic vapor. Rydberg RF sensors have previously shown to exhibit excellent lab-based performance measuring electric field properties. As a commercial network operator we wish exploit these capabilities produce rugged high-sensitivity receiver for 5G signals, so seek simple planning rules applicable...
In this work, we explore a new approach for the fine-adjustment feedback loop in free-space quantum key distribution (QKD) system. particular, propose based on artificial intelligence (AI) to correct turbulence effects induced by propagation channel. The proof of concept proposed paper demonstrates feasibility method and paves way toward large deployment links intracity scenarios.
We demonstrate how the 5G network slicing model can be extended to address data security requirements. In this work we two different slice configurations, with encryption requirements, representing diverse use-cases for networking: namely, an enterprise application hosted at a metro site, and content delivery network. create modified software-defined networking (SDN) orchestrator which calculates provisions slices according including backed by quantum key distribution (QKD), or other...
In this work, we implement a proof-of-concept underwater free-space Quantum Key Distribution (QKD) system and analyze its performance in controlled laboratory test environment. We BB84 protocol with time-bin encoding operating at 520 nm. The quantum channel was composed of five-meter-long tank equipped the possibility actively controlling water turbulence. Finally, measure Bit Error Rate (QBER) various scenarios report results together those relating to parameters considered channel.
There is mounting evidence that a second quantum revolution based on the technological capabilities to detect and manipulate single particles (e.g., electrons, photons, ions, etc), feat not achieved during first revolution, progressing fast. It expected in less than 10 years, this shall have significant impact over numerous industries, including finance, medicine, energy, transportation, etc. Quantum computers threaten status quo of cybersecurity, due known algorithms can break asymmetric...
We report on progress in the development of subsystem-level devices which serve as building blocks for next generation portable atomic clocks. Specifically, we discuss engineering small, low-power, low-temperature strontium vapour dispensers and a compact optical resonator useful stabilisation multiple lasers.
In this work we study the underwater optical channel, making a feasibility analysis on development of high-speed communication system with security guaranteed by Quantum Key Distribution (QKD) protocol. particular, introduce new model for attenuation medium which includes effect turbulence within marine environment.We report performance focusing most important figures merit, such as secret key rate quantum channel and bit classical at physical layer function total link range. We carried out...
Optical lattice atomic clocks have reached a frequency accuracy of few parts in 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−18</sup> , creating potential revolution on time-frequency transfer techniques. The higher levels and stability achievable with this technology opens wide area to applications demanding ultra-stable timing requirements.