Topic
128 stories from Planck Standard. Latest: September 17, 2026.
Quantum jumps were seen in trapped ions in 1986 and in photons in 2007. Sound took another 19 years. The team paired a chip-scale resonator with a superconducting qubit that checked hundreds of times whether one phonon was still there.
The team set three records at once for circular Rydberg atoms, giant atoms that are the leading candidates for neutral-atom quantum computers. The trick was two transparent conductive plates that block the room's own microwave glow, an idea from the 1980s.
Marko Lončar's lab 'dressed' a silicon-vacancy spin with phonons instead of microwave pulses. The technique works inside the phononic cavities that would link nodes of a chip-scale quantum network, letting sound do both jobs at once.
A University of Chicago team laid out the blueprint in PRX Quantum. Helium-3 is a fermion, which means it obeys the rules that keep particles from crowding into the same state, and the group hopes to have single atoms in optical tweezers within a year or two.
The sideways shift depends only on the light's wavelength, not on how tightly the beam is focused. For trapped-ion quantum computers it is either a new source of error or a new way to couple qubits.
'Complement sampling' hands a computer one answer from set A and asks for one from set B. A classical computer can only guess. A trapped-ion processor used a 'swapper' circuit and won, despite the noise.
Instead of coaxing fragile quantum states into existence, physicists sent bright classical light through a random optical network and counted photons one at a time on the way out, exposing hidden multiphoton quantum behavior with 861 measurable components that survives noise and loss.
Bosonic codes store quantum information in microwave fields instead of single qubits, but shaping those states has been painfully slow. A new 'quantum lattice gate' set does it in a single period of the control signal, on hardware that already exists.
Physicists in Shanghai calculated that spin-orbit coupling — long treated as a fixed property of a material's atoms — weakens as temperature rises, closing the band inversion that makes topological states possible.
Okayama University physicists used nuclear magnetic resonance to find three distinct phases in potassium chromium arsenide, evidence that it is a spin-triplet superconductor — the type that could host particles useful for error-free quantum computing.
Photons from neutral atoms spaced micrometers apart were routed into parallel channels of a 32-channel waveguide array with almost no crosstalk, a step toward linking quantum computers together.
The 'arm qubit' design uses a quarton coupler to keep storage and communication apart. In simulation it holds state as long as the best existing designs while operating faster.
A single quantum thermal transistor needs three heat baths; ten of them needed thirty. Two physicists rewrote the wiring using 'thermal links' — and derived Kirchhoff's laws for heat along the way.
Instead of racks of room-temperature electronics feeding signals down cables, HRL Laboratories built a CMOS controller that sits next to the qubits in the cold and executes error correction on its own. Control errors dropped tenfold.
Writing in Nature, researchers report a two-qubit gate that operates in 500 nanoseconds and converts roughly 0.5% of its operations into flagged, detectable errors while leaving hidden errors below 0.1%.
Niobium diselenide is a promising two-dimensional superconductor that starts corroding the instant it meets oxygen. Researchers solved it by growing the crystal inside a gap less than a nanometer wide — under the protective layer instead of beneath it.
A team from IBM and the University of Chicago used 70 error-protected logical qubits to run a sampling problem that leading classical methods cannot practically reproduce, then supplied statistical proof that the machine's output was accurate. Verification has been the missing piece in every prior quantum-advantage claim.
Physicists in China mapped the 167-year-old math problem onto how a quantum system changes over time — and the signal collapsed exactly at the first five zeros of the zeta function.
Using tensor networks to compress the state of hundreds of entangled qubits, researchers cracked a quantum-dynamics calculation on ordinary hardware — matching a quantum computer's results and shaking up claims of 'quantum advantage.'
A gold film thinner than a hair, carved with hundreds of microscopic slits, acts as a statistical filter on quantum states of light — no cryogenic refrigeration required.
By growing a film just two atomic layers of tin telluride thick, researchers realized a long-sought 2D topological crystalline insulator — a milestone on the road to room-temperature quantum devices.
By cooling ultra-pure crystals to a fraction of a degree above absolute zero, a Vienna-led team stretched the lifetime of magnons to 18 microseconds — long enough to turn them into a 'quantum bus' linking hundreds of qubits.
A Los Alamos team built control protocols that can stretch, blur and even reverse the 'arrow of time' in quantum systems, then used the effect to design a 'quantum demon' that pulls energy out of measurement itself.
By cooling ultra-pure crystals to a whisker above absolute zero, a Vienna-led team kept magnons alive for 18 microseconds — long enough, they say, to carry quantum information the way today's best qubits do.
Los Alamos researchers designed control protocols that reshape the 'arrow of time' in quantum systems, then used the trick to pull energy back out of the very act of measurement.
University of Vienna researchers kept magnons alive for 18 microseconds — long enough to carry quantum information — by chilling ultrapure crystals to a whisker above absolute zero.
A Vienna-led team kept the tiny magnetic waves alive for 18 microseconds, showing their fragility was never a law of nature — just a matter of material purity.
A Los Alamos team designed control protocols that make quantum systems appear to run backward, reviving Maxwell’s demon in a modern quantum form.
Researchers led by the University of Vienna kept 'magnons' alive for 18 microseconds — long enough to carry quantum information — and found the only real limit is how pure the crystal is.
By mechanically rotating stacked sheets of hexagonal boron nitride, researchers tuned single-photon emitters across a record range — a step toward practical quantum computers and secure communications.
Oxford physicists demonstrate quantum superposition built from squeezed states rather than classical wave packets, opening possibilities for more resilient quantum computers.
RIKEN scientists develop technique for quantum systems to synchronize in only one direction while remaining stable against manufacturing flaws and environmental noise.
University of Hong Kong engineers turned a single silicon carbide transistor into an artificial neuron that fires reliably at just thousandths of a degree above absolute zero.
A Cal Poly team shows that periodically driving a material with shifting magnetic fields can create quantum phases that have no equivalent in any static material — and may bolster quantum computers.
RIKEN researchers develop technique combining quantum effects to create robust nonreciprocal synchronization for practical quantum technologies.
RIKEN researchers developed a breakthrough method that maintains quantum synchronization despite manufacturing flaws and environmental noise, potentially advancing practical quantum technologies.
RIKEN researchers develop breakthrough technique combining two quantum effects to create stable nonreciprocal synchronization of sound particles, advancing practical quantum technologies.
University of Chicago researchers discovered an elegant way to generate complex entangled quantum states without complicated hardware, potentially advancing quantum computing and sensing technologies.
Using a toric code run over dozens of cycles, the company showed its logical error rate fell as it added qubits — a milestone on the long road to fault-tolerant quantum computing.
University of Chicago researchers have developed a surprisingly straightforward approach to generate complex entangled quantum states using common laboratory equipment.
University of Chicago researchers discover surprisingly straightforward method to generate complex entangled states without sophisticated hardware.
University of Chicago researchers have discovered a surprisingly straightforward way to generate powerful entangled quantum states using small atomic energy modifications, potentially advancing quantum computing and sensing technologies.
University of Chicago researchers discover that small changes to atomic energy levels can generate complex entangled states without complicated hardware.
An international team has created the first chip that can generate, steer and read light-based signals in a single device at room temperature, a milestone for the emerging field of 'valleytronics.'
Monash University scientists create integrated device that can generate, steer, and read quantum light signals using valley degree of freedom, operating at room temperature.
Monash University scientists create compact circuit that generates, directs, and reads quantum light signals, marking major leap toward ultra-fast computing.
Monash University scientists created the first fully integrated device that can generate, steer, and read light-based information using quantum valley properties.
A Cal Poly study in Physical Review B shows that rapidly switching a magnetic field can create quantum phases that don't exist in static materials — and may resist the errors that plague quantum computers.
Scientists create integrated device that generates, steers, and reads light-based information at room temperature, marking major breakthrough for quantum technologies.
The breakthrough device generates, steers, and reads light-based information in a single chip using atomically thin materials and nanoscale structures.
Researchers at the Flatiron Institute and Boston University adapted a 1980s algorithm to simulate the dynamics of hundreds of qubits on classical computers, undercutting a 2025 claim that the feat required a quantum machine.
A new room-temperature quantum device uses twisted light to entangle photons and electrons, overcoming one of the biggest hurdles in quantum technology development.
Stanford researchers develop nanoscale device that creates quantum entanglement without extreme cooling, potentially revolutionizing quantum technology costs and accessibility.
By stacking silver nanoparticles like LEGO bricks, researchers created a mysterious crystal phase never observed before with promising room-temperature quantum properties.
Scientists solved a longstanding materials science puzzle by creating quantum materials that work at room temperature.
The breakthrough device uses twisted light to entangle photons and electrons without extreme cooling, potentially making quantum technology smaller and more affordable.
A technique called Flux-Switching Floquet Engineering produces exotic, noise-resistant quantum phases that could help solve one of quantum computing's biggest problems.
Finnish researchers achieve breakthrough precision that could improve quantum computers and enable detection of elusive dark matter particles from space.
Federal investment marks unprecedented direct ownership in quantum technology firms as competition intensifies with China and other global powers.
Finnish researchers achieve breakthrough detection of energy below one zeptojoule, opening new possibilities for quantum computing and astrophysics research.
Showing the latest 60. More in Physics.