Articles tagged with Qubits
Scientists at the University of Sussex have developed a method to reduce disruptive environmental effects on trapped ion quantum computers. The breakthrough enables the creation of large-scale quantum computers capable of solving complex problems, with potential applications in fields such as medicine, finance, and agriculture.
An Australian research team has experimentally realised a crucial combination of two fundamental quantum techniques on a silicon chip, confirming the promise of silicon for quantum computing. The integrated design combines single-spin addressability and a qubit read-out process vital for quantum error correction.
A team of physicists at the University of Konstanz has developed a theoretical concept to shield electric and magnetic noise, extending the coherence time of spin qubits. This enables thousands of computer operations to be carried out in fractions of a second, paving the way for more efficient quantum computing.
Researchers use artificial intelligence to develop a quantum error correction system that can learn from experience, outperforming traditional methods. The approach enables quantum computers to solve complex tasks by correcting errors in qubit states.
The University of Delaware is leading the charge in quantum technology research with a $1 million NSF grant. The team aims to develop quantum electronics that can process information faster and with greater accuracy, enabling next-generation technologies for communication, computing, and sensing.
Researchers have created a new method for measuring the state of qubits, a crucial step towards building powerful quantum computers. This breakthrough could lead to significant advancements in fields like pharmaceutical development and cryptography.
Researchers at University of Turku and University of Science and Technology of China have successfully controlled the flow of quantum information into the environment, preventing its disappearance. This breakthrough has significant implications for basic research and the development of quantum technologies.
Yale researchers successfully teleported a quantum gate between logical qubits, enabling deterministic inter-module operations and advancing modular quantum computing. This breakthrough is crucial for building large-scale, error-correctable quantum computers.
Scientists at the Weizmann Institute of Science have successfully demonstrated a logic gate that enables the exchange of information between photons and atoms, a breakthrough necessary for scaling up quantum computers. This achievement paves the way for the development of more powerful quantum computing systems.
A University of Queensland researcher led an international study to develop a programmable machine that can accomplish various tasks using reprogrammed settings, resulting in exponential changes.
A team of researchers at the University of Bristol has developed a silicon chip that can guide single photons to encode qubits, demonstrating a fully functional quantum processor. This breakthrough device shows promise for scalable and low-cost production of quantum computers.
A Rice University scientist has developed a new method to diagnose quantum computers, reducing the need for expensive measurements. This approach uses compressed sensing to minimize data while ensuring accurate results, making it possible to validate even large-scale systems.
Researchers at Yokohama National University have demonstrated fault-tolerant universal holonomic quantum gates, paving the way for fast and reliable quantum computing. The team achieved this breakthrough by manipulating a geometric spin qubit in an NV center, enabling precise control over long-lived quantum memories.
A team of scientists at ETH Zurich have found a way to avoid disturbances in qubit operations by coupling a microwave photon to a spin qubit. The researchers created a 'spin trio' consisting of three quantum dots and demonstrated strong coupling between the spin qubits and a microwave photon.
Scientists have successfully implemented an atomic engineering strategy to individually address closely spaced spin qubits in silicon, achieving dramatically different control frequencies. This breakthrough enables selective addressing of qubits, reducing errors and advancing the development of a silicon-based quantum computer.
The study demonstrates an interaction between a qubit and surface acoustic waves in the quantum regime, enabling an alternative approach to quantum computer design. This allows for smaller, more stable, and compact quantum computers without the limitations of microwave radiation.
A team from Aalto University creates a miniature 'heat valve' in a quantum system, enabling the controlled exchange of energy with external surroundings. This breakthrough aims to improve the efficiency of quantum heat engines and refrigerators.
Researchers have developed a refined magnetic sense using algorithms and hardware from quantum computation, achieving six times higher sensitivity than classical methods. The transmon qubit-based magnetometer uses adaptive phase-estimation schemes to measure the strength of external magnetic fields.
The researchers achieved a significant breakthrough in quantum computing by simulating a 64-qubit circuit using a novel partitioning scheme. This method reduces the computational complexity of quantum algorithms, enabling faster simulations and paving the way for future advancements in quantum machine learning and unsupervised learning.
Researchers at ETH Zurich have developed a method to transmit quantum states deterministically over short distances, paving the way for more efficient and secure quantum computing and cryptography. The transmission rate reaches 80% fidelity, enabling entanglement creation between qubits up to 50,000 times per second.
Researchers from Purdue University and the Technological University of Delft have discovered enhanced spin-orbit interaction in silicon, allowing for easier manipulation of qubits using electric fields. This enables the creation of silicon quantum computer chips with millions of qubits, leading to high-speed information processing and ...
Scientists at Oak Ridge National Laboratory successfully simulated an atomic nucleus using a quantum computer, demonstrating the ability of quantum systems to compute nuclear physics problems. The team extracted the deuteron's binding energy with high accuracy, despite challenges posed by inherent noise on the chip.
Researchers at Oregon State University have developed a new inorganic compound that adopts a crystal structure capable of sustaining a quantum spin liquid state. This discovery is a key step toward the creation of next-generation supercomputers, which will solve complex problems efficiently and consume less energy.
Researchers demonstrate a new algorithm to simulate quantum channels using IBM's cloud quantum computer, enabling efficient open system quantum simulation and exploring its applications in quantum communication. The method reduces gate complexity compared to Stinespring dilation, making it scalable for higher dimensions.
Yale researchers have achieved a major milestone in quantum computing by transmitting quantum data between two separate points using a new 'pitch-and-catch' technology. This innovation allows qubits to be interfaced with each other, enabling more complex algorithms and potentially faster computation speeds than classical computers.
Scientists have created a universal qubit design that can be used to build a quantum computer. The new superconductor qubit is based on a continuous superconducting nano-wire and has proven to be no worse than traditional designs in initial experiments.
Researchers in UCSB/Google group aim to demonstrate quantum supremacy with superconducting qubits, overcoming challenges of decoherence and error correction. Their goal is to build a qubit system capable of exploring complex states efficiently, enabling applications in condensed matter physics, chemistry, and materials.
Researchers from Kazan Federal University and Kazan Quantum Center have developed a multiresonator broadband quantum memory-interface with a record-breaking 16.3% efficiency at room temperature. The innovation has the potential to create universal memory solutions for quantum computers on superconducting qubits.
Researchers at Delft University of Technology provide definite proof for Majorana particle existence, showcasing perfect quantization of zero-bias peak. This achievement enables exploration of Majorana quantum computing, with potential applications in topological quantum computing.
Researchers at UNSW Sydney have successfully observed controllable interactions between two atom qubits made of phosphorus atoms in a silicon chip. The discovery is a significant milestone for building a quantum computer, as it demonstrates the ability to manipulate the spin correlations of electrons in these tiny devices.
A team of researchers has demonstrated a proof-of-principle experimental demonstration on simulating molecular vibronic spectra using a 3D circuit quantum electrodynamics system. The simulator can model different molecules and obtain temporal correlation functions, electronic-vibronic coupling strength, and spectra of both equilibrium ...
For the first time, a Toffoli gate was experimentally demonstrated in a semiconductor three-qubit system. This achievement marks an important progress in scaling up semiconductor quantum dot-based qubits and motivates further research on larger-scale semiconductor quantum processors.
Researchers developed a novel verification method to prove large-scale entanglement with only a single measurement run, significantly reducing time and resources required. This breakthrough enables the reliable benchmarking of future quantum devices with unprecedented efficiency.
Researchers at Princeton University have successfully linked silicon spin qubits using light, enabling long-distance communication and opening the door to more complex systems. This breakthrough increases flexibility in device design and could lead to the creation of quantum computing devices from silicon.
Engineers at Rigetti Computing have developed a technique to reduce qubit interference, allowing for the creation of larger practical quantum processors. This breakthrough enables the retention of logical operations independent of the state of a large quantum register.
Researchers at the University of Sydney have discovered a 'quantum hack' that improves quantum error correction by up to 400 percent, allowing for more efficient computations. This breakthrough could lead to fewer physical qubits required for basic calculations, making practical quantum computers a reality.
Researchers have successfully coupled a single electron spin and a single photon on a silicon chip, enabling the transfer of quantum information between them. This breakthrough paves the way for scaling up quantum bits on silicon chips, a crucial step towards creating more powerful quantum computers.
A Singapore-Japan research team developed a new scheme to verify quantum computations after they're completed, allowing customers to check results and protect companies from dishonest users. The 'post-hoc verification' method can be done with or without specialized hardware.
Researchers have developed a quantum metamaterial composed of twin qubits, which can be used as a control element in superconducting electronic devices. The material exhibits unique properties that disappear when separated into its components, making it a promising candidate for future applications.
The new chip design enables millions of qubits to be integrated and processed simultaneously, solving complex problems exponentially faster than conventional computers. The UNSW-led team's innovative approach incorporates error-correcting codes and sophisticated protocols to control the vast array of quantum bits.
Researchers at Princeton University have created a key piece of silicon hardware that controls quantum behavior between two electrons with extremely high precision. The demonstration of this nearly error-free gate opens the door to larger scale experiments and has the potential to scale to more qubits with even lower error rates.
Rice University physicists have successfully created a previously unseen state of matter, the excitonic insulator, which could be used to form component of topological quantum computer. The device uses braided qubits and has inherent topological signatures that could enable fault-tolerant qubits.
A team of researchers has successfully recreated Hofstadter's butterfly using quantum simulators, enabling the simulation of exotic electronic conduction properties. This breakthrough could lead to the development of new materials with unique properties.
Researchers at Google and UC Santa Barbara developed a new process for creating fully superconducting interconnects, compatible with existing qubit technology. This breakthrough aims to enable larger-scale quantum computers with millions of qubits.
Scientists have developed quantum simulators that can control over 50 interacting atomic qubits, mimicking magnetic quantum matter. The new record surpasses previous demonstrations and enables simulations of complex quantum matter, previously unreachable by modern supercomputers.
Physicists at MIT and Harvard University have developed a new technique to manipulate quantum bits by trapping and arranging individual atoms. This breakthrough enables the simulation of complex systems like materials and optimization problems, such as the traveling salesman problem, exponentially faster than classical computers.
The Swedish government is investing SEK 1 billion in a research program to develop a superconducting quantum computer with greater computing power than current supercomputers. The goal is to create a functioning quantum computer with at least 100 qubits, enabling it to solve complex problems in fields like optimization, machine learnin...
Researchers at IST Austria have developed micrometer-scale, nonmagnetic devices that route microwave photons and shield qubits from harmful noise. The compact devices are a significant improvement over traditional predecessors and could revolutionize the development of quantum computers.
Researchers mixed electromagnetic waves on a superconducting qubit, enabling the detection of quantum wave mixing. The study could aid in developing new quantum electronics.
Researchers at Johannes Gutenberg University Mainz successfully demonstrated the operation of a four-qubit register comprised of atomic ions trapped in microchip traps. The achievement marks a decisive milestone for scaling up quantum computers, showcasing the potential for entangled states to be created with long-lived multipartite en...
Researchers at EPFL and University of Cambridge create device harnessing microscopic drum motion to convert signals between two circuits. The system enables dynamic reconfiguration of the isolator's direction, promising a new platform for building microwave devices without magnetic fields.
Researchers at The Australian National University have developed a groundbreaking material that enables a global quantum internet by storing quantum information in an erbium-doped crystal for more than a second, significantly longer than previous attempts. This breakthrough aims to unlock the full potential of future quantum computers.
Engineers at University of New South Wales invent radical new architecture for quantum computing based on novel 'flip-flop qubits'. The design allows for silicon quantum processor that can be scaled up without precise placement of atoms, enabling easier fabrication and placement of thousands or millions of qubits.
Researchers at MIT have successfully created a platform to store and process quantum information using ultracold molecules, which can retain their information for hundreds of times longer than previously achieved. The breakthrough could enable thousands of quantum computations in sequence within a second of coherence.
A new technique allows users to hide both data and program from the quantum computer, even with classical communication. The scheme uses entangled qubits and measurement-based computing to create ambiguity, making it difficult for the computer to determine the true calculation.
The University of Southern California has been selected to lead a consortium to build 100-qubit quantum machines that can solve complex optimization problems. The $45 million contract aims to develop computational frameworks and design quantum annealers for enhanced quantum optimization.
Researchers developed a technique called entanglement distillation to enhance quantum entanglement, confirming its effectiveness across two meters. The approach accounts for interactions between particles and environment, enhancing the connection by iterating on raw states.
Researchers from MIT, Harvard University, and Sandia National Laboratories report a new technique for creating targeted defects in diamond materials, which can function as qubits in quantum computing. The defects produced by the technique were found to be within 50 nanometers of their ideal locations.
Graphene-based quantum capacitor offers advantages in fabrication and resistance to electromagnetic interference. The device has the potential to produce stable qubits and can be used for high-frequency circuits or other electro-optic applications.
Researchers are developing phononic computers that can process vast amounts of information, rivaling quantum computers' capabilities. These 'phi-bits' store data in a superposition state, reducing sensitivity to environmental conditions.