Squeezed light enables advanced quantum applications but faces practical challenges that the authors address through a novel radio-frequency heterodyne detection method with digital unitary transformations, successfully demonstrated over fiber channels for quantum key distribution and sensing networks without requiring complex stabilization systems.
Quantum sensors with unprecedented 4D precision are revolutionizing particle physics by enabling researchers to track individual particles in both space and time, potentially uncovering new fundamental particles and dark matter components that have previously eluded detection in high-energy collider experiments.
NASA’s Jet Propulsion Laboratory is developing the first-ever space-based quantum gravity sensor that uses ultra-cold atoms to detect minute gravitational variations from orbit, potentially revolutionizing how we map Earth’s hidden features and explore distant planets.
Quantum magnetometers leverage quantum particles’ unique properties to detect extremely small magnetic fields, with their ultimate sensitivity limits governed by quantum noise, parameter estimation theory, and energy resolution constraints that help define their true “quantumness.”
Silicon vacancy centers in Silicon Carbide show promise as room-temperature qubits for quantum sensing applications, with researchers demonstrating that simultaneously operating both transitions in the spin-3/2 quartet through a novel duplex qubit scheme doubles the signal contrast and improves sensitivity compared to conventional single-qubit approaches.
Researchers propose a novel quantum sensing protocol that uses in-cavity squeezed states and optimized transient control to mitigate the Rayleigh curse limitation, enabling more sensitive dark matter detection in microwave cavities without requiring non-Gaussian quantum resources that would be incompatible with the strong magnetic fields needed for axion searches.
Using machine learning-optimized quantum locking techniques, scientists have transformed the previously limiting nonlinear Zeeman effect in Earth-field magnetometers into a quantum advantage by stabilizing naturally occurring spin squeezed states, enabling measurements beyond the standard quantum limit.
New Hub focussing on quantum sensing, imaging and timing to be launched as part of £160 million investment.
A quantum sensor based on atom interferometry has been successfully tested in trials on a ship in the North Sea.
A team of researchers successfully developed a scanning probe quantum sensor using a single nitrogen-vacancy center at a diamond tip that can image both AC and DC electric fields at nanoscale resolution under ambient conditions, achieving sensitivities two orders of magnitude better than previous attempts and overcoming electric field screening through mechanical oscillation techniques.
Dr Anna Kowalczyk, Assistant Professor at the University of Birmingham’s Centre for Human Brain Health, is one of 15 researchers awarded funding from the Engineering and Physical Sciences Research Council (EPSRC) to tackle key quantum […]
New highly sensitive quantum sensors for the brain may in the future be able to identify brain diseases such as dementia, ALS and Parkinsons, by spotting a slowing in the speed at which signals travel across the brain.
A wearable brain scanner is being used, for the first time, to investigate the brain activity in elderly people whilst driving a car.
Researchers at the QT Hub are exploiting quantum technology to develop sensors and timing devices.
A team of researchers at Universität Stuttgart, Germany, has developed an ion-optics-based quantum microscope that is capable of creating images of individual atoms.
QSens: Stuttgart-Ulm German cluster for Quantum Sensors
Radars are being installed at the top of an engineering building at the University of Birmingham as part of a demonstration intended to test and prove the precision of quantum-enabled radar detection capabilities.