Dynamics in one-dimensional spin chains newly elucidated Neutron scattering is considered the method of choice for investigating magnetic structures and excitations in quantum materials. Now, for the first time, the evaluation of measurement data from the 2 …
Neural net computing in water A team of researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an ionic circuit comprising hundreds of ionic transistors and performed a core pro …
Full control of a six-qubit quantum processor in silicon Researchers have engineered a record number of six, silicon-based, spin qubits in a fully interoperable array. Importantly, the qubits can be operated with a low error-rate that is achieved with a new …
Extreme nonlinear wave group dynamics in directional wave states Deep-water wave groups are known to be unstable and become rogue. Such unstable wave groups propagate independently regardless of interference. Results seem to support the concept of an unperturbed no …
New light for shaping electron beams A new technique that combines electron microscopy and laser technology enables programmable, arbitrary shaping of electron beams. It can potentially be used for optimizing electron optics and for adap …
A different kind of chaos Physicists have found an answer to the longstanding physics question: How do interparticle interactions affect dynamical localization?
Traditional computers can solve some quantum problems A new study describes how machine learning tools, run on classical computers, can be used to make predictions about quantum systems and thus help researchers solve some of the trickiest physics and ch …
Upgrading your computer to quantum Researchers have demonstrated how a nanoscale layer of superconducting niobium nitride (NbNx) can be grown directly onto aluminum nitride (AIN). The arrangement of atoms, nitrogen content, and electri …
Ultracold circuits Cooling materials to extremely low temperatures is important for basic physics research as well as for technological applications. By improving a special refrigerator and a low-temperature thermometer …
Key element for a scalable quantum computer Millions of quantum bits are required for quantum computers to prove useful in practical applications. But this is still a long way off. One problem is that the qubits have to be very close to each ot …
Silicon nanopillars for quantum communication Across the world, specialists are working on implementing quantum information technologies. One important path involves light: Looking ahead, single light packages, also known as light quanta or photo …
Researchers create new magnetic quasiparticle A new type of magnetic quasiparticle has been created by coupling light to a stack of ultrathin two-dimensional magnets. This achievement lays the foundation for an emergent strategy to artificially d …
Feeling out of equilibrium in a dual geometric world Researchers have extended the utility of chemical reaction network theory beyond systems in equilibrium using a mathematical dual geometrical representation. This work may shed light on the nonequilib …
Physicists demo method for designing topological metals Physicists have demonstrated a design principle for predicting whether metallic compounds are likely to host topological states that arise from strong electron interactions. The method cross-reference …
Physicists generate new nanoscale spin waves Strong alternating magnetic fields can be used to generate a new type of spin wave that was previously just theoretically predicted. This was achieved by a team of physicists.
Scientist discovers new oxidation state of rhodium Chemists have discovered a new oxidation state of rhodium. This chemical element is one of the most catalytically important platinum-group metals and is used, for example, in catalytic converters for …
Through the quantum looking glass An ultrathin invention could make future computing, sensing and encryption technologies remarkably smaller and more powerful by helping scientists control a strange but useful phenomenon of quantum me …
Light-induced topological states Researchers proposed a scenario of a light-induced topological phase called a Floquet-Weyl semimetal. They find that the motion of the electrons when excited by a laser allows a spin-polarized surface …
Making mini-magnets Researchers demonstrated a topological insulator device that opens the way towards observing the quantum anomalous Hall effect. Because the currents generated are resistant to scattering, but very sen …
Unique ferroelectric microstructure revealed for first time A team of researchers have observed and reported for the first time the unique microstructure of a novel ferroelectric material, enabling the development of lead-free piezoelectric materials for elect …
Novel way to generate a light source made from entangled photons Researchers propose an unconventional way to generate light made from entangled photons. In the graphic above, photons meet the electrons of a helium atom, which then emits two entangled photons.
Scientists see spins in a 2D magnet Research shows that spinning quasiparticles, or magnons, light up when paired with a light-emitting quasiparticle, or exciton, with potential quantum information applications.
Just wait a femtosecond Researchers have significantly increased the rate at which scanning tunneling microscopes can capture ultrafast images. They showed that time-lapse movies can capture even very rapid dynamics of indiv …
Researchers devise tunable conducting edge Physicists have demonstrated a new magnetized state in a monolayer of tungsten ditelluride. This material of one-atom thickness has an insulating interior but a conducting edge, which has important im …
Coupling of electron-hole pairs Physicists have succeeded in coupling different types of electron-hole pairs (excitons) in the van der Waals material molybdenum disulfide. This successful coupling allows them to utilize and control …
Making nanodiamonds out of bottle plastic What goes on inside planets like Neptune and Uranus? To find out, an international team conducted a novel experiment. They fired a laser at a thin film of simple PET plastic and investigated what happ …
Quantum materials: Entanglement of many atoms discovered Be it magnets or superconductors: materials are known for their various properties. However, these properties may change spontaneously under extreme conditions. Researchers have discovered an entirely …
Neural networks predict forces in jammed granular solids Granular matter is all around us. Examples include sand, rice, nuts, coffee and even snow. These materials are made of solid particles that are large enough not to experience thermal fluctuations. Ins …
SU(N) matter is about 3 billion times colder than deep space Physicists have opened an unexplored realm of quantum magnetism by creating the universe's coldest fermions — atoms about 3 billion times colder than interstellar space. The team published a gro …
Signs of saturation emerge from particle collisions at RHIC Nuclear physicists studying particle collisions at the Relativistic Heavy Ion Collider (RHIC) have new evidence that particles called gluons reach a steady 'saturated' state inside the speed …
Entangled photons tailor-made Physicists have managed to entangle more than a dozen photons efficiently and in a defined way. They are thus creating a basis for a new type of quantum computer.
From bits to p-bits: One step closer to probabilistic computing Scientists have developed a mathematical description of what happens within tiny magnets as they fluctuate between states when an electric current and magnetic field are applied. Their findings could …
Quantum heat pump: A new measuring tool for physicists Physicists have built a quantum scale heat pump made from particles of light. This device brings scientists closer to the quantum limit of measuring radio frequency signals, useful in for example the …
Silicon image sensor that computes Researchers have developed the first in-sensor processor that could be integrated into commercial silicon imaging sensor chips — known as complementary metal-oxide-semiconductor (CMOS) image sensors …
New Insights into the Interaction of Topological Insulators Topological insulators are regarded as the key to novel 'spintronic' devices and quantum computers of the future due to their unique electronic properties. Physicists have now been able to u …
Researchers demonstrate error correction in a silicon qubit system Researchers have achieved a major step toward large-scale quantum computing by demonstrating error correction in a three-qubit silicon-based quantum computing system. This work could pave the way towa …