Articles tagged with Quantum Optics
The 56th Annual Meeting of the American Physical Society's Division of Atomic, Molecular and Optical Physics will present new research on quantum computing, lasers, and Bose-Einstein condensates. Over 1,200 physicists from around the world will convene in Portland, Oregon, June 16-20.
Researchers create 3D photonic-crystal cavity to study ultrastrong coupling between light and matter, enabling faster and more energy-efficient quantum computing and communication technologies. The study paves the way for hyperefficient quantum processors, high-speed data transmission and next-generation sensors.
Physicists at Harvard SEAS have created a compact, on-chip mid-infrared pulse generator that can emit short bursts of light without external components. This device has the potential to speed up gas sensor development and create new medical imaging tools.
Researchers have directly observed a superradiant phase transition (SRPT) in a magnetic crystal, overcoming a long-standing limitation in theoretical physics. The phenomenon occurs when two groups of quantum particles fluctuate collectively without external triggers, forming a new state of matter with unique properties.
Researchers at CNR-INO observed capillary instability in an ultradilute quantum gas, creating a new form of matter with potential implications for industrial and biomedical applications. The study, published in Physical Review Letters, involved the use of imaging and optical manipulation techniques to create and analyze quantum droplets.
Harvard researchers have created a photon router that could plug into quantum networks to create robust optical interfaces for noise-sensitive microwave quantum computers. The breakthrough enables control of microwave qubits with optical signals generated many miles away, bridging the energy gap between microwave and optical photons.
A new bilayer metasurface, made of two stacked layers of titanium dioxide nanostructures, has been created by Harvard researchers. This device can precisely control the behavior of light, including polarization, and opens up a new avenue for metasurfaces.
Physicists use a new method to create an artificial crystal lattice by applying an electric voltage, allowing them to study the behavior of electrons in semiconductor materials. The technique enables insights into strong interactions and their effects on material properties.
A new study from the University of Eastern Finland investigates the behavior of photons at boundaries where material properties change rapidly over time. This research uncovers remarkable quantum optical phenomena that may enhance quantum technology and pave the way for an exciting emerging field: four-dimensional quantum optics.
Researchers measured high-precision transition frequencies and isotope mass ratios in ytterbium isotopes to confirm a nonlinearity anomaly. The team established a new limit for the existence of dark forces and gained insights into atomic nucleus deformation, opening doors for collaboration in physics research.
Scientists achieved a quantum imaging breakthrough with an ultra-thin nonlinear metasurface, combining ghost imaging and all-optical scanning methods to reconstruct images with exceptional resolution. This approach eliminates the need for bulky nonlinear crystals and enables compact, highly tunable platforms for quantum imaging.
Researchers at CNR-INO develop device to explore boundary between classical and quantum physics, enabling study of nanosystems in both regimes. The nano-oscillator traps glass spheres with specific frequencies, exhibiting counterintuitive quantum behaviors.
Researchers used quantum squeezing to improve gas sensing performance of optical frequency comb lasers, doubling the speed of detectors. The technique allowed for more precise measurements with fewer errors, enabling faster detection of molecules like hydrogen sulfide.
Researchers have developed a method to create photon pairs that achieves higher performance on a much smaller device using less energy. The new device, measuring just 3.4 micrometers thick, has the potential to enable significant gains in energy efficiency and technical capabilities of quantum devices.
The University of Michigan's QuPID project seeks to develop robust quantum systems for applications like environmental monitoring, GPS navigation and semiconductor chip quality control. The team aims to create design kits for global adaptation and simplify instrumentation needed to manipulate light properties.
The study creates ultra-stable thin-film polariton filters with exceptional angular stability, transmitting up to 98% of light, even at extreme viewing angles. This technology has enormous scientific and economic potential for applications in display technology, sensor technologies, biophotonics, and more.
German physicist Christian Schneider has been awarded a European Research Council Consolidator Grant to study the optical properties of two-dimensional materials. His team plans to develop experimental set-ups to investigate the unique properties of these materials, which could lead to new applications in quantum technologies.
The new issue of Optica Quantum features 10 research articles on quantum information science and technology. New methods for compensating scattering and aberrations in entangled photon systems have been proposed, and ultrafast nonlinear wave mixing spectroscopy schemes employing coherent light pulses and vacuum modes are being explored.
A team of researchers has developed a new way to study disorder in superconductors using terahertz pulses of light. They observed that the disorder in superconducting transport was significantly lower than previously thought, with stability up to 70% of the transition temperature.
Scientists at Chalmers University of Technology have successfully combined nonlinear and high-index nanophotonics in a single nanoobject, creating a disk-like structure with unique optical properties. The discovery has great potential for developing efficient and compact nonlinear optical devices.
A new graduate program at Rice University aims to equip students with skills needed to serve as leaders in quantum technology innovation. The program will provide interdisciplinary training to 30 students, combining expertise from quantum physics, optics, and nanotechnology.
Researchers have successfully achieved spin squeezing in a more accessible way, enabling precise measurements with quantum-enhanced metrology. This breakthrough may lead to new portable sensors for biomedical imaging and atomic clocks.
Researchers discovered that amyloid fibrils can harness quantum superradiant effects to mitigate oxidative stress, potentially transforming dementia treatments and understanding of Alzheimer's disease. This finding raises questions about the conventional view of amyloid's role in the disease.
Researchers at University of Konstanz shape electron matter wave into left- or right-handed coils of mass and charge. This achievement has implications for fundamental physics and potential applications in quantum optics, particle physics, and electron microscopy.
Researchers at Stanford University have developed a chip-scale Titanium-sapphire laser, four orders of magnitude smaller and three orders less expensive than traditional lasers. This breakthrough enables mass production on wafers, potentially thousands of lasers per disc, democratizing access to these powerful tools.
Scientists have demonstrated spontaneous parametric down-conversion in a liquid crystal, creating entangled photon pairs with high efficiency. The discovery enables flexible and electric-field-tunable quantum light sources.
A team of researchers successfully demonstrated the principles of gravity-mediated entanglement in a photonic quantum simulation. This breakthrough provides crucial insights into the nature of gravity and its interaction with quantum mechanics.
Researchers created a topological quantum simulator device that operates at room temperature, allowing for the study of fundamental nature of matter and light. The device has the potential to support the development of more efficient lasers.
Researchers have developed a new device that can determine photon pair properties in a single shot, improving precision and accuracy in quantum technologies. The metasurface-enabled multiport interferometer reduces size, weight, and power while increasing reliability.
New molecular design principles can stop electrons from coupling with atomic vibrations, improving the performance of organic molecules in OLEDs and other applications. This breakthrough opens up new trajectories for industries such as displays, bio-medical imaging, and disease detection.
Scientists create a small drum that stores data sent with light in its sonic vibrations, allowing for secure transmission over long distances. This innovation has the potential to revolutionize quantum computing and enable an internet with quantum speed and security.
Scientists have developed a new method to manipulate light using synthetic dimension dynamics, enabling precise control over light propagation and confinement. This breakthrough has significant implications for applications such as mode lasing, quantum optics, and data transmission.
Researchers at the Max Planck Institute of Quantum Optics have successfully developed a new technique for deciphering the properties of light and matter, enabling precise spectroscopy under low-light conditions. This breakthrough opens up possibilities for novel applications in photon-level diagnostics, precision spectroscopy, and biom...
Researchers at Max Born Institute have successfully implemented high-resolution linear-absorption dual-comb spectroscopy in the ultraviolet spectral range. This breakthrough enables experiments under low-light conditions, paving the way for novel applications in precision spectroscopy and biomedical sensing.
The Institute for Molecular Science (IMS) is accelerating the development of novel quantum computers based on 'cold (neutral) atom' technology, leveraging expertise from 10 industry partners. The partnership aims to launch a start-up company and develop practical applications of quantum computers by end FY2024.
Researchers demonstrate a way to amplify interactions between particles to overcome environmental noise, enabling the study of entanglement in larger systems. This breakthrough holds promise for practical applications in sensor technology and environmental monitoring.
Researchers at Paderborn University have developed a new method for determining the characteristics of optical quantum states using photon detectors, enabling precise knowledge essential for quantum computing and information processing.
Physicists at the University of Southampton successfully detect weak gravitational pull on microscopic particles using a new technique. The experiment, published in Science Advances, could pave the way to finding the elusive quantum gravity theory.
Researchers have discovered a new state of matter characterized by chiral currents, generated by cooperative electron movement. This phenomenon has implications for the development of new electronic devices and technologies, including optoelectronics and quantum technologies.
A team of researchers from the universities of Mainz, Olomouc, and Tokyo has successfully generated a logical qubit from a single light pulse that can correct errors. This breakthrough uses a photon-based approach to overcome the limitations of current quantum computing technology.
A new quantum optics technique has been introduced to explore light-matter interactions in semiconductors. The technique, called photon-cascade correlation spectroscopy, uses spectral filtering and photon-correlation analysis to reveal interactions between semiconductor exciton-polaritons.
Researchers have demonstrated a connection between quantum entanglement and topology, allowing for the preservation of quantum information even when entanglement is fragile. This breakthrough enables a new encoding mechanism that utilizes entanglement to encode quantum information in scenarios with minimal entanglement.
Researchers have successfully fabricated a self-assembling photonic cavity with atomic-scale confinement, bridging the gap between nanoscopic and macroscopic scales. The cavities were created using a novel approach that combines top-down and bottom-up fabrication techniques, enabling unprecedented miniaturization.
Researchers at Rice University have discovered a way to transform a rare-earth crystal into a magnet by using chirality in phonons. Chirality, or the twisting of atoms' motion, breaks time-reversal symmetry and aligns electron spins, creating a magnetic effect.
Theoretical demonstration shows that an optical cavity can change the magnetic order of α-RuCl3 from a zigzag antiferromagnet to a ferromagnet solely by placing it into the cavity. The team's work circumvents practical problems associated with continuous laser driving.
Scientists at the University of Warsaw have developed a device that can convert quantum information between microwave and optical photons, enabling a crucial part of quantum network infrastructure. This breakthrough could lead to advancements in quantum computing, radio-astronomy, and high-speed internet connections.
Researchers create an ultrafast quantum simulator that can simulate large-scale quantum entanglement on a timescale of several hundred picoseconds. By applying their novel ultrafast quantum computer scheme, they overcome the issue of external noise and achieve high speed and accurate controls.
Scientists at the University of Innsbruck improved atomic clock accuracy by using finite-range interactions to create entanglement, reducing measurement errors by roughly half.
A team of researchers at MIT has successfully controlled quantum randomness from the vacuum, a milestone in quantum technologies. By injecting a weak laser bias into an optical parametric oscillator, they have created a controllable source of 'biased' quantum randomness, enabling probabilistic computing and ultra-precise field sensing.
The UW students' achievement enables the implementation of a fractional Fourier Transform in optical pulses, allowing for more precise pulse identification and filtering. This innovation has significant implications for spectroscopy and telecommunications, where precise signal processing is crucial.
A new technique developed by researchers at the University of Warsaw's Faculty of Physics allows for up to a 200-fold change in pulse duration with an efficiency of 25 percent. This enables quantum Internet links to operate up to 50 times faster, contributing to the development of superfast quantum connections.
A team of researchers has achieved unparalleled precision in measuring the time delay between two photons using frequency-resolving sampling measurements. This breakthrough enables faster and more efficient characterisation of nanostructures, including biological samples and nanomaterial surfaces.
The team successfully entangled two qudits with unprecedented performance, enabling faster and more robust quantum computing. This breakthrough could lead to significant advancements in fields like chemistry and physics.
Researchers from ETH Zurich have achieved groundbreaking cooling of a glass nanoparticle along two directions of motion, overcoming the 'Dark Mode Effect'. This breakthrough enables the creation of fragile quantum states and paves the way for ultrasensitive gyroscopes and sensors.
A research team from USTC demonstrated nonreciprocal routing between any two modes with different frequencies using radiation pressure force. They used two optical modes and two mechanical modes to form a closed loop in a microresonator, achieving phonon-phonon, photon-photon, and photon-phonon nonreciprocal conversions.
Researchers from University of the Witwatersrand developed a new approach to studying complex light in complex systems. They found distortion-free forms of structured light that emerge undistorted from noisy channels, unlike other forms of structured light which become unrecognizable. This breakthrough has the potential to pave the wa...
Researchers from Nanjing University have proposed the first scheme to practically generate N-photon states deterministically using a lithium-niobate-on-insulator platform. The scheme involves deterministic parametric down-conversion and demonstrates feasibility for generating multiphoton qubit states.
Scientists develop eigenmodes of structured light that remain undistorted even in turbulent channels, enabling robust transmission through noisy media. This breakthrough paves the way for future work in quantum light communication and imaging through complex systems.
Researchers have devised a new mechanism to generate high-energy 'quantum light', which could reveal new properties of matter at the atomic scale. The theory predicts a way to control the quantum nature of light using correlated emitters with a strong laser.
Researchers at University of Copenhagen and Ruhr University Bochum have made a groundbreaking discovery, solving a long-standing problem in quantum physics. They can now control two quantum light sources, enabling the creation of quantum mechanical entanglement, a phenomenon with sci-fi-like properties.