Articles tagged with Quantum Computing
The book delves into the concept of emergence in two domains: condensed matter physics and quantum gravity. It reveals surprising connections between seemingly disparate areas of physics, shedding light on how mysterious materials work and the origins of space and time.
Researchers have designed a transparent window coating that can lower building temperatures without using energy. The coating blocks UV and near-infrared light while transmitting visible light, potentially reducing cooling energy consumption by 31% in hot cities.
The Arizona State University's Quantum Collaborative is a major initiative promoting understanding of advanced quantum technology and forging partnerships to advance it. The collaborative aims to develop a robust talent pipeline for a quantum-enabled economy through certifications, upskilling opportunities, and modified degree programs.
Researchers at MIT have developed a new approach to identify topological materials using machine learning and X-ray absorption spectroscopy. The method is over 90% accurate in identifying known topological materials and can predict properties of unknown compounds.
Researchers at Penn State have created a two-dimensional heterostructure by combining a topological insulator with a monolayer superconductor, demonstrating topological superconductivity and Ising-type superconductivity. The hybrid structure could pave the way for more stable quantum computers and explore Majorana fermions.
A University of Central Florida researcher is leading a $1.25 million project to map and manipulate materials at the nanoscale. The research aims to unlock new capabilities of materials at the nanoscale, potentially leading to new catalysts and compounds applicable in quantum science, renewable energy, life sciences and sustainability.
Researchers aim to use quantum computer-based AI to accelerate drug discovery, cutting costs and time by exponentially increasing processing power for complex problems. Quantum AI models have higher capability to approximate desired functionality compared to classical neural networks.
Researchers at the University of Tokyo have identified possible solutions to limitations of qubits for quantum computing. They successfully controlled temperature and movement of trapped electrons in a vacuum using hybrid quantum systems, paving the way for potential applications in quantum technology.
Researchers at Trinity College Dublin discovered that quantum computation may be used by the human brain, correlating with short-term memory performance and conscious awareness. This finding could enhance our understanding of brain functions and potentially lead to innovative technologies.
Researchers from Huazhong University of Science and Technology developed a scalable metalens array for optical addressing, enabling compact focusing of individual addressing beams onto quantum particles. The design features a periodical metalens molecule with a 'Z' shape, allowing for arbitrary focused spot arrays and low crosstalk.
A team of researchers at UNSW Sydney has broken new ground by proving that 'spin qubits' can hold information for up to two milliseconds, a significant improvement over previous benchmarks. By extending the coherence time, they enable more efficient quantum operations and better maintain information during calculations.
Physicists at Forschungszentrum Jülich and RWTH Aachen University have successfully transferred electrons over several micrometres on a quantum chip, paving the way for a scalable quantum computer architecture that can support millions of qubits. The 'quantum bus' approach enables the coupling of qubits without the need for extensive c...
The University of Texas at Dallas is receiving a $5 million NSF grant to advance quantum research and education. The grant aims to train the workforce needed for neutral-atom-based quantum information processing, which has immense potential to speed up computation.
Researchers at Toshiba Corporation achieved a breakthrough in quantum computer architecture with the development of a double-transmon coupler. This technology enables high-speed quantum computations with strong coupling and completely turns off residual coupling, improving accuracy and processing time.
Researchers at Rice University have discovered a unique arrangement of atoms in iron-germanium crystals that leads to a collective dance of electrons. The phenomenon, known as a charge density wave, occurs when the material is cooled to a critically low temperature and exhibits standing waves of fluid electrons.
Scientists have developed a magnetized state in monolayer tungsten ditelluride, allowing for controlled electron flow and potential applications in non-volatile memory chips. The discovery enables the creation of smaller, more energy-efficient devices that consume less power and dissipate less energy.
Researchers at NICT have developed a new systematic method to identify the optimal quantum operation sequence, enabling efficient task execution and contributing to improving quantum computer performance and reducing environmental impact. The method uses GRAPE algorithm to analyze all possible sequences of elementary quantum operations.
Researchers at Princeton University have discovered a new method to correct errors in quantum computers, potentially clearing a major obstacle. The technique increases the acceptable error rate four-fold, making it practical for current quantum systems.
Xiu Yang, a 2022 NSF CAREER award recipient, is working on an algorithmic approach to model and overcome hardware errors in quantum computing. He aims to enable the technology to achieve its promise of unparalleled speed in solving complex problems.
Researchers at the Max Planck Institute have successfully generated up to 14 entangled photons using a single atom, enabling efficient creation of quantum computer building blocks. This breakthrough could facilitate scalable measurement-based quantum computing and enable secure data transmission over greater distances.
Researchers discovered that a naturally insulating material, lanthanide-doped upconversion nanoparticle (UCNP), emits bursts of superfluorescence at room temperature and regular intervals. This property is valuable for quantum optical applications, such as faster microchips or neurosensors.
Researchers at Forschungszentrum Jülich have discovered how the topological properties of multilayer WTe2 systems can be changed by studying them under a scanning tunneling microscope. The study found that twisting the layers creates a moiré lattice that modulates electrical conductivity.
Researchers at RIKEN have achieved error correction in a three-qubit silicon-based system, a major step toward large-scale quantum computing. This accomplishment demonstrates control of one of the largest qubit systems in silicon, providing a prototype for quantum error correction.
An international research team led by the University of Göttingen has discovered unexpected quantum effects in naturally occurring double-layer graphene. The study reveals a variety of complex quantum phases emerging at temperatures near absolute zero, including magnetic behavior without external influence.
Researchers at ICFO successfully simulated a topological gauge theory using ultracold potassium atoms dressed with laser light, moving beyond previous electromagnetism simulations. This breakthrough allows for better understanding of exotic quantum behavior in materials and error correction codes for future quantum computers.
Scientists have successfully implemented the world's fastest two-qubit gate in a quantum computer, achieving an impressive speed of 6.5 nanoseconds using cold atoms cooled to near absolute zero and optical tweezers. This breakthrough has significant implications for the development of ultrafast quantum computing hardware.
Researchers optimized the ZZ SWAP network protocol, introducing a new technique to improve quantum error mitigation. This enables more efficient execution of quantum algorithms like QAOA, which can solve combinatorial optimization problems.
A research group from Osaka Metropolitan University investigates Adiabatic State Preparation (ASP) for efficient electron correlation effects in molecules. They find four key points relevant to ASP's computational conditions, making the method more practical.
A new review paper assesses recent progress in controlling quantum systems and applies it to emerging technologies, highlighting the need for a unified theoretical framework. The authors identify roadblocks that must be overcome to manifest a future quantum technological landscape.
Researchers have found a way to precisely control qubits without previous limitations, enabling large-scale quantum processors and quantum memories. The new method combines optical methods with microwaves to overcome wiring issues, paving the way for quantum computing advancement.
A team led by Dr SeyedAbdolreza Sadjadi and Professor Quentin Parker from HKU's Laboratory for Space Research identified highly ionised species of C60 fullerene as plausible carriers of some prominent UIE bands. Theoretical mid-infrared signatures of these ionised forms match well with astronomical UIE features, providing a promising d...
Researchers from NUS and LMU Munich successfully demonstrated device-independent QKD, a new form of quantum key distribution that is secure even if users are not privy to the underlying hardware. The experiment used a new protocol with an extra set of key-generating measurements to make it more tolerant to noise and loss.
Researchers at the University of Innsbruck developed a quantum computer that can perform arbitrary calculations using quantum digits (qudits), exceeding classical computers' efficiency. This innovation unlocks more computational power with fewer quantum particles.
Scientists at Simon Fraser University have made a breakthrough in developing quantum technology by observing over 150,000 silicon 'T centre' photon-spin qubits. This discovery enables the creation of massively scalable quantum computers and quantum internet that can connect them.
Researchers developed topological membrane metadevices for on-chip terahertz wave manipulations, showcasing robust single-mode manipulation and valley-locked edge states. This breakthrough enables the development of a robust platform for terahertz on-chip communication, sensing, and multiplexing systems.
Researchers at Indiana University and the University of Tennessee have developed a one-dimensional helium model system, which enables the creation of smaller and faster microchips. The new system is designed to explore the behavior of particles in a confined space, allowing for the study of previously unexplored physics.
Physicists at HZDR and CASUS improved the density functional theory method to accurately describe quantum many-body systems, breaking a significant simplification. This enables studies of non-linear phenomena in complex materials with unprecedented temporal and spatial resolution.
Researchers investigate the search for Majorana fermions in iron-based superconductors, which could enable topological quantum computing and ultra-low energy electronics. The existence of Majorana zero-energy modes in topological superconductors makes them a promising candidate material for realizing these technologies.
Scientists have created a new technology that can manipulate light in non-reciprocal ways, allowing for more advanced applications in quantum computing. The innovation uses nanostructured surfaces to convert infrared light into visible light, enabling the creation of specific photon conditions.
Researchers at MIT have developed a method to enable quantum sensors to detect any arbitrary frequency without losing nanoscale spatial resolution. The new system, called a quantum mixer, injects a second frequency into the detector using microwaves, enabling detection of signals with desired frequencies.
Researchers at the University of Colorado Boulder and NIST have successfully demonstrated reading out signals from superconducting qubits using laser light, preserving the qubit's information. This breakthrough could enable the creation of a quantum internet, allowing for secure communication over long distances.
Researchers observe formation of ordered and tunable MZM lattice in naturally strained LiFeAs, characterized by strain-induced CDW stripes. The lattice density and geometry can be tuned using external magnetic fields, providing a promising platform for manipulating MZMs.
Rice University engineers have developed a novel approach to manipulating the magnetic and electronic properties of 2D materials by stressing them with contoured substrates. The technique, inspired by recent discoveries in twisted 2D materials, allows for unprecedented control over quantum effects.
Researchers at Colorado State University have developed a cobalt-based molecule that can detect extremely subtle temperature shifts inside the body, opening up new possibilities for medical imaging and therapy. The noninvasive probe uses radiofrequency waves to read out temperature signals from the body.
Scientists at Aalto University and Oak Ridge National Laboratory develop new method to detect Cooper pairs in unconventional superconductors, enabling unique understanding of quantum materials. This breakthrough represents a major step forward in developing quantum technologies.
Researchers successfully created a two-body time-crystal system in an experiment that challenges our understanding of physics. They also found that time crystals can be used to build useful devices at room temperature, opening up new possibilities for quantum computing.
Researchers at TU Darmstadt have developed a scalable quantum network that enables secure key exchange and protection of sensitive information. The system uses entanglement-based time-bin coding to distribute photons to users, ensuring robust security against eavesdropping attacks.
The Berkeley Lab team has demonstrated a three-qubit native quantum gate, the iToffoli gate, with high fidelity of 98.26%. This breakthrough enables universal quantum computing and reduces circuit running times.
A team of scientists used a quantum simulator to study the behavior of a complex quantum system, finding that it exhibits characteristics similar to fluid dynamics. The research also showed that this phenomenon can be observed in the flights of bees, as well as in unusual stock market movements.
Researchers propose using quantum repeaters to regenerate signals and prevent data loss in ground-based quantum networks. Another approach involves taking quantum networks into the air via drones or satellites, enabling longer-distance transmission and greater flexibility.
Researchers at Argonne National Laboratory have created a new qubit platform using solid neon, which offers a robust environment for electrons and demonstrates competitive coherence times. This breakthrough could lead to the development of future quantum computers with improved performance.
The project explores symmetries underlying fundamental questions in computer science, statistics, and quantum information. Researchers aim to develop efficient numerical algorithms and new structural insights using a novel optimisation paradigm.
Researchers at the University of Copenhagen have developed a new position-based quantum encryption method that uses a person's geographical location to guarantee secure communication. This method makes it difficult for hackers to impersonate users and exploit online communications.
Scientists at Delft University of Technology have discovered one-way superconductivity using 2D quantum materials, enabling superconducting computing and reducing energy loss. This breakthrough could lead to faster electronics, greener IT systems, and significant energy savings.
A research team from Yokohama National University demonstrates quantum error correction in spin quantum memories in diamond under a zero magnetic field. This achievement makes the quantum memory resilient against operational or environmental errors without the need for magnetic fields.
The discovery could lead to more compact computer memories and efficient technical components. Researchers used ultrafast laser pulses to create magnetic skyrmions, a type of swirling magnetism.
Researchers discovered that light can trigger magnetism in normally nonmagnetic materials by aligning electron spins. This breakthrough could enable the development of quantum bits for quantum computing and other applications.
Researchers at Dartmouth have built the world's first superfluid circuit using pairs of ultracold electron-like atoms, allowing for controlled exploration of exotic materials like superconductors. The circuit enables analysis of electron movement in highly controllable settings.
Researchers at Forschungszentrum Jülich successfully integrated a topological insulator into a conventional superconducting qubit, demonstrating a novel hybrid qubit. This breakthrough could lead to more robust and fast quantum computing systems.
Researchers at Princeton University have achieved an unprecedented level of fidelity in two-qubit silicon devices, paving the way for the use of silicon technology in quantum computing. The study's findings suggest that silicon spin qubits have advantages over other qubit types, including scalability and size limitations.