Generalizing the measurement postulate in quantum mechanics
The measurement postulate is crucial to quantum mechanics. If we measure a quantum system, we can only get one of the eigenvalues of the measured observable, such as position, energy and so on, with a probability. Immediately after the measurement, t.....»»
A maximally entangled quantum state with a fixed spectrum does not exist in the presence of noise, mathematician claims
For more than 20 years, quantum researchers have wondered whether a quantum system can have maximum entanglement in the presence of noise. A mathematician from Spain recently answered the question: No......»»
Researchers observe Floquet states in colloidal nanoplatelets driven by visible pulses
Solution-processed semiconductor nanocrystals are also called colloidal quantum dots (QDs). While the concept of size-dependent quantum effects had long been known to physicists, a sculpture of the theory into real nanodimensional objects remained im.....»»
The closest thing to C-3PO can be yours – if you have $16,000
Unitree G1 is a quantum leap ahead of the company's H1 robot but it will cost you dearly......»»
Ultrathin quantum light sources: Scientists show excitonic interactions boost efficiency of entangled photon generation
Scientists from the National University of Singapore (NUS) have shown that excitonic resonances and transitions between excitons can significantly increase the efficiency of generating entangled photon pairs. This could lead to the development of eff.....»»
The Vacuum of Space Will Decay Sooner Than Expected
One of the quantum fields that fills the universe is special because its default value seems poised to eventually change—changing everything......»»
Quantum breakthrough achieved in the coolest place on the space station
The Cold Atom Lab on the International Space Station has made use of atom interferometry in space to detect environmental changes......»»
Physicists uncover new phenomena in fractional quantum Hall effects
Imagine a two-dimensional flatland, instead of our three-dimensional world, where the rules of physics are turned on their head and particles like electrons defy expectations to reveal new secrets. That's exactly what a team of researchers, including.....»»
Theoretical research holds promise for advancing modular quantum information processing
The operation of a quantum computer relies on encoding and processing information in the form of quantum bits—defined by two states of quantum systems such as electrons and photons. Unlike binary bits used in classical computers, quantum bits can e.....»»
NIST releases finalized post-quantum encryption standards
NIST has finalized its principal set of encryption algorithms designed to withstand cyberattacks from a quantum computer. The announced algorithms are specified in the first completed standards from NIST’s post-quantum cryptography (PQC) standardiz.....»»
NASA demonstrates "ultra-cool" quantum sensor for first time in space
NASA's Cold Atom Lab, a first-of-its-kind facility aboard the International Space Station, has taken another step toward revolutionizing how quantum science can be used in space. Members of the science team measured subtle vibrations of the space sta.....»»
A new approach to fine-tuning quantum materials
Quantum materials—those with electronic properties that are governed by the principles of quantum mechanics, such as correlation and entanglement—can exhibit exotic behaviors under certain conditions, such as the ability to transmit electricity w.....»»
Study unveils limits on the extent to which quantum errors can be "undone" in large systems
Quantum computers have the potential of outperforming conventional computers on some practically relevant information processing problems, possibly even in machine learning and optimization. Yet their large-scale deployment is not yet feasible, large.....»»
Achieving quantum memory in the notoriously difficult X-ray range
Light is an excellent carrier of information used not only for classical communication technologies but also increasingly for quantum applications such as quantum networking and computing. However, processing light signals is far more complex, compar.....»»
Quantum computing: Finding solutions by the people for the people
PEARC24 launched its first Workshop on Broadly Accessible Quantum Computing (QC) as the full conference began, July 22, in Providence, RI. Led by NCSA's Bruno Abreu and QuEra's Tomasso Macri, 30+ participants included quantum chemists, system adminis.....»»
The link between fuzzy images and quantum fields
Mathematical solutions to thorny quantum problems can be found more quickly by exploiting the correspondence between the statistical methods used in deep learning and techniques for implementing quantum simulations, a team led by a RIKEN researcher h.....»»
X-ray imagery of vibrating diamond opens avenues for quantum sensing
When it comes to materials for quantum sensors, diamond is the best game in town, says Cornell University professor Gregory Fuchs. Now he and a team of scientists have upped diamond's game by generating exquisite imagery of diamond undergoing microsc.....»»
After AI, quantum computing eyes its "Sputnik" moment
Quantum computing promises society-changing breakthroughs in drug development and tackling climate change, and on an unassuming English high street, the race to unleash the latest tech revolution is gathering pace......»»
Gulf of Mexico "dead zone" larger than average, scientists find
NOAA-supported scientists have announced that this year's Gulf of Mexico "dead zone"—an area of low to no oxygen that can kill fish and marine life—is approximately 6,705 square miles, the 12th largest zone on record in 38 years of measurement. T.....»»
Can quantum particles mimic gravitational waves?
When two black holes collide, space and time shake and energy spreads out like ripples in a pond. These gravitational waves, predicted by Einstein in 1916, were observed for the first time by the Laser Interferometer Gravitational-Wave Observatory (L.....»»
Experiment uses quantum techniques to stimulate photons, enhancing search for dark matter
Scientists cannot observe dark matter directly, so to "see" it, they look for signals that it has interacted with other matter by creating a visible photon. However, signals from dark matter are incredibly weak. If scientists can make a particle dete.....»»