Control and readout system for quantum processor
Researchers at Indian Institute of Science create SQ-CARS, a scalable platform for advanced quantum experiments with superconducting transmon qubits, reducing cost and size.
Quantum Processors
Articles tagged with Quantum Processors
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Rice U.’s Songtao Chen wins NSF CAREER Award
Songtao Chen, an assistant professor at Rice University, has won a prestigious NSF CAREER Award to study the interaction between photons and T center qubits. The research aims to address signal-loss during transmission, which is crucial for large-scale implementation of quantum communication.
Understanding the tantalizing benefits of tantalum for improved quantum processors
Researchers used x-ray photoelectron spectroscopy to study the chemical profile of tantalum surface oxides, revealing different kinds of tantalum oxides at the surface. This discovery prompted a new set of questions on modifying interfaces to improve device performance and minimizing loss.
Army funds two quantum-related projects at Pitt
The US Army has awarded over $5.7 million to two quantum computing projects at the University of Pittsburgh, led by Associate Professor Michael Hatridge. The grants aim to overcome roadblocks in modular quantum computing and develop new hardware approaches for superconducting quantum computers.
Google Quantum AI braids non-Abelian anyons for the first time
Researchers at Google Quantum AI have successfully observed non-Abelian anyons, a type of particle predicted to break certain rules in physics. This breakthrough enables the creation of topological quantum computers, which can perform robust operations despite noise and errors.
A quantum leap in computational performance of quantum processors
A team of researchers at Bar-Ilan University has improved the basic computation unit of quantum computers by developing a tunable superconducting flux qubit. This innovation enables quantum computers to operate with hundreds of qubits simultaneously, leading to significant advancements in computational power and potential applications.
Swedish quantum computer applied to chemistry for the first time
Researchers at Chalmers University have successfully used a quantum computer to calculate the intrinsic energy of small molecules, demonstrating a new method called Reference-State Error Mitigation. This breakthrough has the potential to advance the boundaries of chemical calculations and simulate complex chemical processes.
Light meets deep learning: computing fast enough for next-gen AI
Researchers developed a novel design for the chip using a crossbar layout, outperforming state-of-the-art photonic counterparts in terms of scalability and technical versatility. The synergy of powerful photonics with the novel crossbar architecture enables next generation neuromorphic computing engines.
HRL Laboratories silicon encoded spin qubits achieve universality
HRL Laboratories has demonstrated universal control of encoded spin qubits using a novel silicon-based qubit device architecture. The achievement offers a strong pathway toward scalable fault tolerance and computational advantage in quantum computing, with potential applications in materials development, drug discovery, and mitigating ...
Quantum Australia: Hear global insiders map out next phase of the boom
Researchers and industry leaders from around the world will gather in Sydney to discuss key areas of quantum computing, communications, sensing, training, entrepreneurship, and policy. The three-day event is expected to feature insights on cyber security, sustainability, and commercialization, with over 700 attendees.
The 'flip-flop' qubit: Realization of a new quantum bit in silicon controlled by electric signals
Researchers have demonstrated a new type of quantum bit, called 'flip-flop' qubit, which combines the properties of single atoms with easy controllability using electric signals. The qubit is made up of two spins belonging to the same atom and can be programmed by displacing an electron with respect to the nucleus.
Quantum computers: Bar-Ilan University researchers develop superconducting flux qubits with unprecedented reproducibility
Researchers at Bar-Ilan University have successfully developed superconducting flux qubits with unprecedented long and reproducible coherence times, overcoming a significant hurdle in solving scalability problems. This breakthrough enables the potential applications of quantum hybrid circuits and quantum computation.
New quantum computing architecture could be used to connect large-scale devices
Researchers have developed a quantum computing architecture that enables directional photon emission, the first step toward extensible quantum interconnects. This breakthrough enables the creation of larger-scale devices by linking multiple processing modules along a common waveguide.
Quantum computing workshop brings classical control systems into focus
AQT at Berkeley Lab organized a workshop on classical control systems for quantum computing, bringing together industry leaders and researchers to share experimental control advances. The workshop highlighted the need for advanced features in classical control electronic systems to optimize quantum computer performance.
Quantum processor reveals bound states of photons hold strong even in the midst of chaos
Researchers at Google Quantum AI used a quantum processor to create bound states of interacting photons, which survived in a chaotic regime. The discovery challenges previous assumptions and has implications for many-body quantum dynamics and fundamental physics discoveries.
New instrument measures supercurrent flow, data has applications in quantum computing
Researchers have developed a new microscope that can measure supercurrent flow at extremely small scales and high energies. The Cryogenic Magneto-Terahertz Scanning Near-field Optical Microscope (cm-SNOM) instrument is being used to study superconductivity, which has applications in quantum computing and medical imaging.
New quantum computing feat is a modern twist on a 150-year-old thought experiment
A team of quantum engineers at UNSW Sydney has developed a method to reset a quantum computer using a fast digital voltmeter to watch the temperature of an electron, reducing preparation errors from 20% to 1%. This innovation represents a modern twist on Maxwell's demon, a thought experiment that dates back to 1867.
For the longest time: Quantum computing engineers set new standard in silicon chip performance
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.
New NSF grant to advance quantum research, education at UT Dallas
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.
New stable quantum batteries can reliably store energy into electromagnetic fields
Researchers have developed new stable quantum batteries that can reliably store energy into electromagnetic fields. The micromaser system allows for efficient charging with protection against overcharging and preserves the stored energy's purity.
TV series Snowpiercer’s ‘eternal engine’ inspires the next generation of ultraprecise atomic clocks
Researchers at the University of Sussex have created an 'eternal engine' to keep next-generation atomic clocks ticking, enabling portable versions that can replace existing satellite navigation systems. The breakthrough uses microcombs and self-emergence technology to ensure stable operation in various conditions.
Optimizing SWAP networks for quantum computing
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.
OU physicists receive $1 million grant to explore quantum synchronization
Researchers at OU's CQRT are developing quantum synchronization and organization using multiple experimental approaches. They aim to create a quantum network and better understand collective interactions, with potential implications for network synchronization and electrical power systems.
Quantum computer works with more than zero and one
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.
SFU researchers find the missing photonic link to enable an all-silicon quantum internet
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.
Physicists see electron whirlpools for the first time
Researchers at MIT and Weizmann Institute of Science visualize electron vortices in ultraclean tungsten ditelluride, confirming theoretical predictions. The observation could lead to more efficient next-generation electronics by reducing energy dissipation.
Quantum sensor can detect electromagnetic signals of any frequency
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.
UIC joins national quantum computing center
The University of Illinois Chicago has joined the Co-design Center for Quantum Advantage, a US Department of Energy-funded center focused on building scalable quantum computer systems. The partnership will open new opportunities for UIC students in quantum engineering and collaboration with researchers.
Breakthrough paves way for photonic sensing at the ultimate quantum limit
A team of physicists has developed a way to perform high precision measurements without relying on special entangled states of light. The breakthrough uses ring resonators, which can be mass manufactured using standard processes, and enables the creation of chip-scale photonic sensors operating at the quantum limit.
Dutch researchers teleport quantum information across rudimentary quantum network
Researchers at QuTech have demonstrated the first non-adjacent node-to-node teleportation of quantum information in a network, leveraging entangled states and quantum processors. This breakthrough enables future applications like secure data sharing and precise quantum sensors.
Error-free quantum computing gets real
Researchers at the University of Innsbruck have successfully implemented a universal set of gates on encoded logical quantum bits, enabling fault-tolerant quantum computing. The demonstration showcases two essential gates: CNOT and T-gates, which are crucial for programming all algorithms.
Breakthrough in quantum universal gate sets: A high-fidelity iToffoli gate
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.
Thermal insulation for quantum technologies
Scientists at HZB created sintered porous silicon-aluminum nanomaterials with reduced thermal conductivity using a novel process. The resulting materials have tiny pores, crystalline nanoparticles, and domain boundaries that suppress heat conduction.
In balance: Quantum computing needs the right combination of order and disorder
Researchers found that some quantum computer chips are dangerously close to chaos due to improper disorder design. A delicate balance must be struck to safeguard device operation.
Collaborators from Harvard University and QuEra Computing observe quantum speed-up in optimization problems
Researchers from Harvard University and QuEra Computing have demonstrated a breakthrough application of neutral-atom quantum processors to solve practical optimization problems. The team achieved unprecedented quantum hardware power, showcasing a super-linear quantum speed-up compared to classical algorithms.
Neon ice shows promise as new qubit platform
A team of scientists at Argonne National Laboratory has created a new qubit platform using neon gas, freezing it into a solid and trapping a single electron. The system shows great promise as an ideal building block for future quantum computers.
New approach may help clear hurdle to large-scale quantum computing
A Harvard-led team created a new method for processing quantum information that allows for the dynamic change of atoms' layout during computation, expanding capabilities and enabling self-correction of errors. This approach uses entanglement to connect atoms remotely and can process exponentially large amounts of information.
Study points to physical principles that underlie quantum Darwinism
The study investigates the role of physical principles in quantum Darwinism, finding that it relies on non-classical features, specifically entanglement, to emerge via natural selection. The researchers employed generalized probabilistic theories to analyze and compare different physical theories.
New hardware integrates mechanical devices into quantum tech
Researchers have developed a key experimental device for future quantum physics-based technologies by coupling nanomechanical oscillators with qubits. This enables the manipulation of quantum states in mechanical oscillators, generating quantum mechanical effects that could empower advanced computing and precise sensing systems. The de...
The use of photons to create an artificial quantum neuron
Researchers have engineered an optical device with functional characteristics similar to memristors, which can operate on quantum states of light and encode quantum information. This breakthrough enables the creation of a quantum memristor, potentially bridging artificial intelligence and quantum computing.
A mathematical shortcut for determining quantum information lifetimes
Researchers have discovered an elegant equation to approximate the coherence time of materials hosting spin qubits. The team can now estimate coherence times in seconds using just five material properties, facilitating a rapid exploration of new candidate materials.
How a physicist aims to reduce the noise in quantum computing
Behunin's project targets challenges in practical quantum computing by controlling noise and its impact on qubits. By manipulating sound waves, he hopes to quiet the noise that corrupts information stored in quantum computers.
Quantum information theory: Quantum complexity grows linearly for an exponentially long time
Researchers proved a conjecture on quantum complexity growth, contradicting the Brown-Susskind intuition that complexity increases linearly for astronomically long times and then remains maximum. Instead, complexity grows linearly with time until it saturates at an exponential point related to system size.
Tiny magnets could hold the secret to new quantum computers
Scientists have achieved efficient quantum coupling between two distant magnetic devices, which can host magnons and exchange energy and information. This achievement may be useful for creating new quantum information technology devices.
Characterizing super-semi sandwiches for quantum computing
Researchers create a microscopic sandwich of an aluminium superconductor on top of an indium-arsenic semiconductor to probe quantum interactions in super-semi sandwiches. They developed a novel probing technique, paving the way for new applications like topological quantum bits based on Majorana zero modes.
A useful application for a quantum processor: The improvement of spectroscopy measurements
Researchers from the University of Warsaw have developed a quantum processor that can efficiently provide information on matter hidden in light, improving spectroscopy measurements. The device achieves high resolution (15 kHz) using a small amount of light, surpassing classical limits.
University of Oklahoma scientist’s quantum technology work garners international attention
Thirumalai Venkatesan's research aims to create a human-brain like computing system using quantum technology. His team has discovered a wonder molecule that enables molecular devices to mimic the brain's logic and reconfigure physical wiring, leading to enhanced computational power and reduced energy consumption.
NIST researchers resurrect and improve a technique for detecting transistor defects
Researchers at NIST have revived and improved the charge pumping method to detect single defects as small as one-tenth of a billionth of a meter. The new technique can indicate where defects are located in transistors, enabling accurate assessment of their impact on performance.
The power of chaos: a robust and low-cost cryptosystem for the post-quantum era
A team of researchers from Ritsumeikan University developed an unprecedented stream cipher using chaos theory to create highly secure cryptographic systems. The new system is resistant to statistical attacks and eavesdropping, even against quantum computers, making it a promising solution for post-quantum era cryptosystems.
€16 million for photonic quantum processors
A €16 million project, PhotonQ, is developing a photonic quantum processor to process qubits and reduce error rates. The processor will enable rapid scaling to relevant qubit numbers for practical applications.
How Sandia Labs is revealing the inner workings of quantum computers
Researchers at Sandia National Laboratories developed a precision diagnostic to detect and describe problems in quantum computing hardware. Using gate set tomography, they discovered new innovations that improve the reliability and accuracy of quantum processors.
Quantum computing in silicon hits 99% accuracy
Researchers have achieved 99% accuracy in quantum computing using silicon-based devices. The breakthrough enables the creation of large arrays of qubits capable of robust computations, overcoming a significant challenge in building reliable quantum computers.
Seeing inside cells with an integrated nanowire probe
Researchers developed a multifunctional microfiber probe for real-time monitoring of cellular molecules and changes in cell morphology. The nanowire probe enabled sensitive detection of refractive index distribution in single living cells during apoptosis.
Atom by atom: new silicon computer chip technique opens up quantum computing construction possibilities
A team of researchers has developed a new technique to embed single atoms in silicon wafers, mirroring methods used to build conventional devices. The technique creates large-scale patterns of controlled atoms that can be manipulated and read out, enabling the construction of large-scale quantum devices.
Integrated photonics for quantum technologies
Researchers outline potential and challenges of integrated photonic circuits for quantum technologies, highlighting need for investment in education and infrastructure. The paper provides a comprehensive overview of current state and future applications of integrated photonics for quantum technologies.
Snapshots from the quantum world
Researchers develop technique to study singlet/triplet ratio of electron pairs in charge-separated states, which could lead to advancements in organic solar cells and qubits. The 'pump-push-pulse' method allows for snapshots of spin state at different times.
Sensor based on quantum physics could detect SARS-CoV-2 virus
A novel quantum-based sensor has been developed to detect the SARS-CoV-2 virus with high accuracy and speed. The sensor uses nitrogen vacancy centers in diamond to detect minute perturbations in the presence of viral RNA, enabling fast and reliable detection.
Engineering high-dimensional quantum states
A team of researchers demonstrates an adaptive optimization protocol that can engineer arbitrary high-dimensional quantum states, overcoming limitations due to noise and experimental imperfections. The protocol uses measured agreement between produced and target state to tune experimental parameters.
Measuring a quantum computer’s power just got faster and more accurate
Scientists at Sandia National Labs invent a new yardstick for benchmarking performance of quantum computers. The mirror-circuit method is faster and more accurate than conventional tests, revealing the true potential and limitations of quantum processors.
QuTech takes important step in quantum computing with error correction
Researchers at QuTech have successfully integrated high-fidelity operations on encoded quantum data with a scalable scheme for repeated stabilization. They demonstrate that it is possible to compute as well as encode and stabilize qubits, a crucial step towards developing fault-tolerant quantum computers.