Quantum-enhanced metrology has been an active area of research for several years now due to its many possible applications, ranging from atomic clocks to biological imaging. Past physics research established that having a non-classical probe, such as squeezed light or an entangled spin state, can have significant benefits compared to classical probes. This idea was explored further in several recent works, some of which also considered the benefits of examining multiple distinct samples with non... PHYS.ORG · 1 month
Quantum memories entangled over 50-kilometer cable  PHYS.ORG · 1 week
A team of researchers affiliated with several institutions in China has succeeded in sending entangled quantum memories over a 50-kilometer coiled fiber cable. In their paper published in the journal Nature, the group describes several experiments... more
Moving precision communication, metrology, quantum applications from lab to chip  SCIENCE DAILY · 1 week
Photonic integration has focused on communications applications traditionally fabricated on silicon chips, because these are less expensive and more easily manufactured, and researchers are exploring promising new waveguide... more
Multidimensional entanglement transport through single-mode fiber  Science Magazine · 4 weeks
The global quantum network requires the distribution of entangled states over long distances, with substantial advances already demonstrated using polarization. While Hilbert spaces with higher dimensionality, e.g., spatial modes of light, allow higher information capacity per... more
A hybrid quantum memory-enabled network at room temperature  Science Magazine · 2 weeks
Quantum memory capable of storage and retrieval of flying photons on demand is crucial for developing quantum information technologies. However, the devices needed for long-distance links are different from those envisioned for... more
Quantum physics: On the way to quantum networks  SCIENCE DAILY · 4 weeks
Physicists have successfully demonstrated the transport of an entangled state between an atom and a photon via an optic fiber over a distance of up to 20 km -- thus setting a... more
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Researchers at EPFL have developed a new, high-precision method for 3-D-printing small, soft objects. The process, which takes less than 30 seconds from start to finish, has potential applications in... more
Cooling of a levitated nanoparticle to the motional quantum ground state  Science Magazine · 3 weeks
Quantum control of complex objects in the regime of large size and mass provides opportunities for sensing applications and tests of fundamental physics. The realization of... more
Researchers' golden touch enhances quantum technology  nanowerk · 4 weeks
Scientists discovered a new platform for quantum technologies by suspending two-dimensional crystals over pores in a slab of gold. This new approach may help develop new materials for secure communication and sensing technologies based on the... more
Quantum logic spectroscopy unlocks potential of highly charged ions  PHYS.ORG · 4 weeks
Scientists from the PTB and the Max Planck Institute for Nuclear Physics (MPIK), both Germany, have carried out pioneering optical measurements of highly charged ions with unprecedented precision. To do... more
Heisenberg limit gets a meaningful update  PHYS.ORG · 3 weeks
One of the cornerstones of quantum theory is a fundamental limit to the precision with which we can know certain pairs of physical quantities, such as position and momentum. For quantum theoretical treatments, this uncertainty principle... more
Researchers' golden touch enhances quantum technology  PHYS.ORG · 4 weeks
Scientists at the U.S. Naval Research Laboratory discovered a new platform for quantum technologies by suspending two-dimensional (2-D) crystals over pores in a slab of gold. This new approach may help develop new materials for secure... more
Correcting the jitters in quantum devices  PHYS.ORG · 5 days
Labs around the world are racing to develop new computing and sensing devices that operate on the principles of quantum mechanics and could offer dramatic advantages over their classical counterparts. But these technologies still face several... more
On the way to quantum networks  PHYS.ORG · 4 weeks
Physicists at LMU, together with colleagues at Saarland University, have successfully demonstrated the transport of an entangled state between an atom and a photon via an optic fiber over a distance of up to 20 km—thus... more
A new twist on quantum communication in fiber  PHYS.ORG · 4 weeks
New research done at the University of the Witwatersrand in Johannesburg, South Africa, and Huazhang University of Science and Technology in Wuhan, China, has exciting implications for secure data transfer across optical... more
Using noise to enhance optical sensing  PHYS.ORG · 1 week
In conventional sensing methods, noise is always a problem, especially in systems that are meant to detect changes in their environment that are hardly bigger or even smaller than the noise in the system. Encountering this... more
Theoretical study points to jade-like materials as quantum spin liquids  nanowerk · 4 weeks
This exotic liquid-like state of matter in which magnetism never freezes could give rise to high-temperature superconductivity and form the basis for quantum computing. more
Coupled quantum dots may offer a new way to store quantum information  nanowerk · 4 weeks
Researchers have for the first time created and imaged a novel pair of quantum dots -- tiny islands of confined electric charge that act... more
AI method determines quantum advantage for advanced computing  PHYS.ORG · 3 weeks
Creating quantum computers is costly and time-consuming, and the resulting devices are not guaranteed to exhibit any quantum advantage—that is, they often do not operate faster than a conventional computer. So researchers... more
SENSE.nano awards seed grants in optoelectronics, interactive manufacturing  MIT · 1 week
The mission of SENSE.nano is to foster the development and use of novel sensors, sensing systems, and sensing solutions. more
Artificial atoms create stable qubits for quantum computing  SCIENCE DAILY · 2 weeks
Quantum computing researchers have made improved qubits by exploiting concepts from high school chemistry. more
Coupled quantum dots may offer a new way to store quantum information  PHYS.ORG · 4 weeks
Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have for the first time created and imaged a novel pair... more
X-ray microscopy shows that nanoparticles can change cells  nanowerk · 2 weeks
Nanoparticles easily enter into cells. New insights about how they are distributed and what they do there are shown for the first time by high-resolution 3D microscopy images. more
Jackiw-Rebbi zero-mode: Realizing non-Abelian braiding in non-Majorana system  PHYS.ORG · 2 weeks
As an important branch of quantum computation, topological quantum computation has been drawing extensive attention for holding great advantages such as fault-tolerance. Topological quantum computation is based on the non-Abelian braiding of... more
Human DNA-PK activates a STING-independent DNA sensing pathway  Science Magazine · 4 weeks
Detection of intracellular DNA by the cGAS-STING pathway activates a type I interferon-mediated innate immune response that protects from virus infection. Whether there are additional DNA sensing pathways, and how such pathways... more
Cathode 'defects' improve battery performance  nanowerk · 3 weeks
A counterintuitive finding revealed by high-precision powder diffraction analyses suggests a new strategy for building better batteries. more
Fastest high-precision 3D printer for metamaterials with sub-micrometer accuracy  nanowerk · 3 weeks
Researchers have developed a system to print highly precise, centimeter-sized objects with submicrometer details at a so far unmatched speed. more
A quantum of solid  SCIENCE DAILY · 3 weeks
Researchers in Austria use lasers to levitate and cool a glass nanoparticle into the quantum regime. Although it is trapped in a room temperature environment, the particle's motion is solely governed by the laws of quantum physics. more
Crystal-stacking process can produce new materials for high-tech devices  PHYS.ORG · 3 weeks
The magnetic, conductive and optical properties of complex oxides make them key to components of next-generation electronics used for data storage, sensing, energy technologies, biomedical devices and many other applications. more
Quantum technologies: New insights into superconducting processes  PHYS.ORG · 2 weeks
The development of a quantum computer that can solve problems, which classical computers can only solve with great effort or not at all—this is the goal currently being pursued by an ever-growing number of... more
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