Quantum Computers News

September 25, 2023

Top Headlines

Researchers Make a Significant Step Towards Reliably Processing Quantum Information

Sep. 11, 2023 — Using laser light, researchers have developed the most robust method currently known to control individual qubits made of the chemical element barium. The ability to reliably control a qubit is an ...

Machine Learning Contributes to Better Quantum Error Correction

Sep. 7, 2023 — Researchers have used machine learning to perform error correction for quantum computers -- a crucial step for making these devices practical -- using an autonomous correction system that despite being approximate, can efficiently determine how best ...

Deriving the Fundamental Limit of Heat Current in Quantum Mechanical Many-Particle Systems

Sep. 5, 2023 — Researchers have mathematically derived the fundamental limit of heat current flowing into a quantum system comprising numerous quantum mechanical particles in relation to the particle count. ...

Atomically-Precise Quantum Antidots Via Vacancy Self-Assembly

Sep. 5, 2023 — Scientists demonstrated a conceptual breakthrough by fabricating atomically precise quantum antidots using self-assembled single vacancies in a two-dimensional transition metal ...

Latest Headlines

updated 4:37pm EDT

A Linear Path to Efficient Quantum Technologies

Sep. 12, 2023 — Researchers have demonstrated that a key ingredient for many quantum computation and communication schemes can be performed with an efficiency that exceeds the commonly assumed upper theoretical ...

Better Cybersecurity With New Material

Sep. 4, 2023 — Digital information exchange can be safer, cheaper and more environmentally friendly with the help of a new type of random number generator for encryption. The researchers behind the study believe ...

Hotter Quantum Systems Can Cool Faster Than Initially Colder Equivalents

Aug. 29, 2023 — The Mpemba effect is originally referred to the non-monotonic initial temperature dependence of the freezing start time, but it has been observed in various systems -- including colloids -- and has ...

Paving the Way for Advanced Quantum Sensors

Aug. 30, 2023 — Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several new studies show that the precision of these quantum sensors can be ...

A Simpler Way to Connect Quantum Computers

Aug. 30, 2023 — Researchers have developed a new approach to building quantum repeaters, devices that can link quantum computers over long distances. The new system transmits low-loss signals over optical fiber ...

Quantum Computer Unveils Atomic Dynamics of Light-Sensitive Molecules

Aug. 28, 2023 — Researchers have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts ...

Making the Invisible, Visible: New Method Makes Mid-Infrared Light Detectable at Room Temperature

Aug. 28, 2023 — Scientists have developed a new method for detecting mid-infrared (MIR) light at room temperature using quantum ...

New Quantum Device Generates Single Photons and Encodes Information

Aug. 24, 2023 — A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication ...

Do Measurements Produce the Reality They Show Us?

Aug. 24, 2023 — The measurement values determined in sufficiently precise measurements of physical systems will vary based on the relation between the past and the future of a system determined by its interactions ...

Scientists Develop Fermionic Quantum Processor

Aug. 23, 2023 — Researchers have designed a new type of quantum computer that uses fermionic atoms to simulate complex physical systems. The processor uses programmable neutral atom arrays and is capable of ...

Earlier Headlines

Summaries
Headlines

Research Group Detects a Quantum Entanglement Wave for the First Time Using Real-Space Measurements

Aug. 23, 2023 — A team has created an artificial quantum magnet featuring a quasiparticle made of entangled electrons, the ...

Quantum Physicists Simulate Super Diffusion on a Quantum Computer

Aug. 17, 2023 — Quantum physicists have successfully simulated super diffusion in a system of interacting quantum particles on a quantum computer. This is the first step in doing highly challenging quantum transport ...

Switching 'Spin' on and Off (and Up and Down) in Quantum Materials at Room Temperature

Aug. 16, 2023 — Researchers have found a way to control the interaction of light and quantum 'spin' in organic semiconductors, that works even at room ...

Carbon-Based Quantum Technology

Aug. 15, 2023 — Graphene nanoribbons have outstanding properties that can be precisely controlled. Researchers have succeeded in attaching electrodes to individual atomically precise nanoribbons, paving the way for ...

Arrays of Quantum Rods Could Enhance TVs or Virtual Reality Devices

Aug. 11, 2023 — Using scaffolds of folded DNA, engineers assembled arrays of quantum rods with desirable photonic properties that could enable them to be used as highly efficient micro-LEDs for televisions or ...

Quantum Material Exhibits 'Non-Local' Behavior That Mimics Brain Function

Aug. 8, 2023 — New research shows that electrical stimuli passed between neighboring electrodes can also affect non-neighboring electrodes. Known as non-locality, this discovery is a crucial milestone toward ...

Current Takes a Surprising Path in Quantum Material

Aug. 3, 2023 — Researchers used magnetic imaging to obtain the first direct visualization of how electrons flow in a special type of insulator, and by doing so they discovered that the transport current moves ...

Sensing and Controlling Microscopic Spin Density in Materials

Aug. 3, 2023 — Researchers found a way to tune the spin density in diamond by applying an external laser or microwave beam. The finding could open new possibilities for advanced quantum ...

Quantum Discovery: Materials Can Host D-Wave Effects With F-Wave Behaviors

Aug. 2, 2023 — In a potential boon for quantum computing, physicists have shown that topologically protected quantum states can be entangled with other, highly manipulable quantum states in some electronic ...

Scientists Create Novel Approach to Control Energy Waves in 4D

July 31, 2023 — Everyday life involves the three dimensions or 3D -- along an X, Y and Z axis, or up and down, left and right, and forward and back. But, in recent years scientists have explored a 'fourth ...

When Electrons Slowly Vanish During Cooling

July 31, 2023 — Many substances change their properties when they are cooled below a certain critical temperature. Such a phase transition occurs, for example, when water freezes. However, in certain metals there ...

A New Type of Quantum Bit in Semiconductor Nanostructures

July 25, 2023 — Researchers have created a quantum superposition state in a semiconductor nanostructure that might serve as a basis for quantum computing. The trick: two optical laser pulses that act as a single ...

Researchers Establish Criterion for Nonlocal Quantum Behavior in Networks

July 13, 2023 — A new theoretical study provides a framework for understanding nonlocality, a feature that quantum networks must possess to perform operations inaccessible to standard communications technology. By ...

New Superconductors Can Be Built Atom by Atom

July 13, 2023 — The future of electronics will be based on novel kinds of materials. Sometimes, however, the naturally occurring topology of atoms makes it difficult for new physical effects to be created. To tackle ...

Controlling Signal Routing in Quantum Information Processing

July 13, 2023 — Routing signals and isolating them against noise and back-reflections are essential in many practical situations in classical communication as well as in quantum processing. In a theory-experimental ...

Physicists Work to Prevent Information Loss in Quantum Computing

July 12, 2023 — Nothing exists in a vacuum, but physicists often wish this weren't the case. If the systems that scientists study could be completely isolated from the outside world, things would be a lot ...

Finding the Flux of Quantum Technology

July 5, 2023 — We interact with bits and bytes everyday -- whether that's through sending a text message or receiving an email. There's also quantum bits, or qubits, that have critical differences from ...

An Easier Way to Learn Quantum Processes

July 5, 2023 — Scientists show that even a few simple examples are enough for a quantum machine-learning model, the 'quantum neural networks', to learn and predict the behavior of quantum systems, ...

Scientists Edge Toward Scalable Quantum Simulations on a Photonic Chip

June 29, 2023 — A system using photonics-based synthetic dimensions could be used to help explain complex natural ...

Research Breakthrough Could Be Significant for Quantum Computing Future

June 28, 2023 — Scientists using one of the world's most powerful quantum microscopes have made a discovery that could have significant consequences for the future of computing. Researchers have discovered a ...

Wednesday, August 23, 2023