Researchers have successfully described what happens when a massive object is placed in a quantum superposition state near clocks, defying classical descriptions. This discovery reveals that quantum time order can arise, leading to new physical effects and potential applications for quantum technologies.
Los Alamos National Laboratory scientists have developed a new quantum computing algorithm to investigate the quantum-to-classical transition in systems like biological proteins. The algorithm allows for the search for classicality in quantum systems, providing insights into how quantum mechanics applies to large-scale objects.
Researchers successfully transferred and verified angular momentum basis of quantum information from laser light to an electron trapped on a quantum dot. This achievement marks a significant step towards realizing a quantum internet with secure and rapid quantum information transmission.
Scientists have successfully imaged an exotic quantum particle called a Majorana fermion, which can be used as a building block for future qubits and the realization of quantum computers. This achievement brings researchers closer to developing robust qubits and ultimately building quantum computers.
Scientists have developed a quantum algorithm that can process large sets of data faster and more accurately than standard methods. The Kravchuk transform, a quantum counterpart of the Fast Fourier Transform (FFT), enables efficient processing of digital images, sound, and radio signals.
Researchers employed machine learning to analyze images of quantum systems and identify the most predictive theory. The study used artificial neural networks to distinguish between competing theories, selecting the one that best described observed phenomena in high-temperature superconductors.
Hybrid algorithms employ classical and quantum capabilities to address limitations of near-term quantum hardware. The approach can tackle optimization problems like graph partitioning and clustering, enabling researchers to use existing quantum hardware for practical applications.
Researchers at US Naval Research Laboratory developed a new technique that enables precise control over quantum dot wavelengths, paving the way for breakthroughs in quantum information technologies and brain-inspired computing. This achievement could lead to new technologies that harness the strange properties of quantum physics for co...
Researchers at Osaka City University develop a quantum algorithm to determine spin quantum numbers on quantum computers, enabling accurate wave function calculations. This breakthrough solves complex issues in chemistry and physics, accelerating the development of practical quantum computers.
Scientists from the University of Bristol have developed a new platform for quantum simulators, enabling the creation of large-scale photonic circuits. The team demonstrated that small-scale silicon photonic circuits can generate and process unprecedented numbers of photons, paving the way for quantum machines to surpass classical supe...
Researchers developed a new computational method using neural networks to simulate open quantum systems, predicting properties of large-scale quantum systems. This approach addresses the challenges of simulating intrinsically complex tasks with exponentially growing computational power.
Researchers have successfully demonstrated a new method for verifying quantum entanglement in six-photon systems, achieving high confidence levels with low experimental runs. This breakthrough could move the field of quantum technologies forward by making large-scale quantum systems more feasible.
Researchers have successfully prepared a remote quantum state in the microwave regime, enabling secure communication. This breakthrough has the potential to transform the field of quantum cryptography and ultra-accurate quantum metrology.
Researchers at Yale University have discovered a way to catch and save Schrödinger's cat by predicting its quantum jumps. This breakthrough overturns cornerstone dogma in quantum physics and enables early warning systems for imminent jumps of artificial atoms containing quantum information.
Researchers at NIST have demonstrated the teleportation of a complete quantum logic operation using ions, a crucial step towards building large-scale quantum computers. The experiment involved transmitting data from one ion to another over a distance of over 340 micrometers without physical interaction.
Researchers have developed a new method to create thin films that emit single photons at precise locations, enabling the scalability of quantum materials. This breakthrough paves the way for beyond-lab-scale quantum information technologies, including all-optical quantum computing and quantum key distribution.
Researchers at IQOQI have developed a new method for quantum simulation that uses a programmable ion trap quantum computer with 20 quantum bits. This allows for complex simulations to be performed efficiently and accurately.
Researchers developed an all-fiber device to generate quantum states necessary for quantum key distribution, switching polarization 1 billion times a second. The device is self-compensating and stable, making it suitable for a global quantum network that could protect sensitive data.
A team of researchers led by Prof. DU Shengwang from HKUST achieved a breakthrough in photonic quantum memories, boosting efficiency to over 85% and fidelity to over 99%. This finding brings the dream of an 'universal' quantum computer closer to reality.
University of Copenhagen researchers create a nanomechanical router that emits quantum information carried by light particles, enabling the scaling up of quantum technology. The component's tiny size makes it promising for future applications, potentially achieving 'quantum supremacy' with tens of photons simultaneously.
A new method for characterizing complex quantum states has been developed, enabling quantum simulations on larger systems. This method is based on the repeated measurement of randomly selected transformations of individual particles and provides information about the degree of entanglement.
A team of Sydney researchers has achieved a world-record result in reducing errors in semiconductor electron 'spin qubits', a crucial step towards building useful quantum computers. The result, published in Nature Electronics, demonstrates error rates as low as 0.043 percent.
Researchers at University of Innsbruck discover that digital quantum simulation can retain controlled Trotter errors for local observables, reducing the number of required gate operations. This breakthrough makes digital quantum simulation more accessible to current day quantum devices.
Scientists from Michigan Technological University have successfully created 2D gold quantum dots that can be customized at the atomic level on boron nitride nanotubes. This breakthrough enables the creation of tunable semiconducting materials with potential applications in future electronics and quantum computing.
D-Wave's quantum annealing algorithm and quantum computer have been shown to break RSA codes with unprecedented efficiency, outperforming universal quantum computers like Shor's algorithm. This breakthrough highlights the potential of D-Wave for cryptanalysis and code-cracking.
A new computer program can identify unwanted states in quantum computers, allowing users to check reliability without technical expertise. Researchers used the IBM Q Experience and dimension witnessing technique to demonstrate the method's accuracy.
Scientists have developed a method to swap electron spins between distant quantum dots, enabling fast interaction and space for pulsed gate electrodes. This breakthrough brings us closer to future applications of quantum information and potential quantum computers.
A study published in Physical Review Letters demonstrates that algorithms based on deep neural networks can better understand quantum physics phenomena. Researchers found a way to harness AI to enhance understanding of quantum behavior, potentially revolutionizing various aspects of life.
Researchers at Delft University of Technology have created a quantum circuit that enables the detection of weak radio signals, which could revolutionize fields like radio astronomy and medicine. The breakthrough opens up possibilities for experiments that explore the interplay between quantum mechanics and gravity.
Researchers at Joint Quantum Institute demonstrate a new way to distinguish between quantum scrambling and true information loss using a small quantum computer. They achieved an accuracy of 80% in correctly diagnosing scrambling with seven atomic ions.
A new measurement technique called COSPLI enables researchers to map and measure large-scale photonic quantum correlation with single-photon sensitivity, a critical step towards making photon-based quantum computing practical. The method uses CCD cameras and suppresses noise to detect signals from individual photons.
The discovery represents a powerful mechanism for quantum computing and cryptography. Researchers developed an exponential-SWAP gate that can link encoded particles on demand, mitigating the limitation of previous designs and enabling flexible operations.
Researchers at the University of Sydney have demonstrated an order of magnitude improvement in reducing infidelity, or error rates, in quantum logic gates by using codes to detect and discard errors. This achievement opens a path to further improvements in quantum computers.
A team of Cambridge researchers controlled the sea of nuclei in semiconductor quantum dots, enabling them to operate as a quantum memory device. This achievement harnesses the interaction between electrons and nuclear spins, proving the nuclei can exchange information with an electron qubit.
Quantum computing aims to break cryptography and speed up database search, but scaling is a significant challenge. Researcher Debbie Leung discusses the ingredients required for accurate quantum computing operations and recent progress with error-correcting codes.
Researchers have developed a new technique to recover lost information in quantum systems by repeating experiments with slightly different noise characteristics. This method effectively reduces quantum noise without the need for additional hardware.
A group of researchers proved that whether an object exhibits quantum features depends on the reference frame. The physical laws, however, are still independent of it. This insight might play a role at the interplay of quantum mechanics and gravity.
Researchers have demonstrated proof-of-principle for an all-photonic quantum repeater, a critical step in long-distance quantum communication. This technology could enable faster and more secure global quantum Internet applications.
A team of scientists successfully simulated an arbitrary quantum channel for a superconducting qubit, allowing for controlled evolution in various physical environments. This breakthrough demonstrates the potential for this technology in future applications, including quantum computation and simulation.
Researchers from Osaka City University have developed a novel quantum algorithm to perform full configuration interaction calculations suitable for predicting chemical reactions, overcoming the exponential/combinatorial explosion of traditional methods. This breakthrough enables practical applications of quantum chemistry on quantum co...
Researchers from Osaka City University have developed a quantum algorithm capable of performing full configuration interaction calculations for any open shell molecules in polynomial time, overcoming the exponential explosion challenge. This breakthrough enables practical applications of quantum computers in chemistry and physics.
Researchers at Kazan Federal University developed cryptographic algorithms for quantum networks, which can facilitate fast and secure information transfer. The algorithms, known as quantum hash functions, can protect against mistakes and be used for authentication in various areas.
The researchers successfully demonstrated a new level of control over photons encoded with quantum information, performing distinct operations on two qubits in parallel. This breakthrough enables universal quantum computing and improves energy efficiency, stability, and control.
A team from INRS has successfully generated high-dimensional cluster states and implemented novel quantum operations, paving the way for one-way quantum computing. This breakthrough uses photons as a data medium, leveraging their unique properties to increase information storage capacity and boost computational power.
Researchers at the University of Bristol have discovered fundamental limits on the postselection technique used to test quantum mechanics. They found that as complex quantum systems are built, fewer and fewer entangled states can be reached using postselection alone.
Physicists at the University of Warwick have developed a new test to spot quantum coherence in nature, which could lead to breakthroughs in quantum technologies like computers and sensors. The test clarifies the conditions under which biological systems may exploit quantum mechanics.
Researchers at UPV/EHU designed a model of quantum artificial life that encodes quantum behaviors similar to living systems. The model, executed on an IBM ibmqx4 cloud quantum computer, simulates birth, self-replication, interaction between individuals and the environment.
Bell nonlocality and EPR steering are characterized using strict definitions, establishing a foundation for defining metric functions of Bell locality and EPR steering. The study generalizes previous results and provides sufficient conditions for determining the quantum state's EPR steerability.
The Q.Link.X project funds a quantum repeater development to overcome transmission link limitations in optical fiber-based quantum communication, aiming for distances of up to ten or 100 kilometers.
Researchers at UAlberta developed a new technique for storing quantum information in ultracold rubidium atoms, enabling efficient quantum communication and scalable technologies. The novel method uses clouds of atoms to store pulses of light, with significantly reduced technical requirements.
ETH Zurich researchers have demonstrated a novel quantum error correction technique that can monitor and correct errors in real-time. The technique, which uses trapped ions to encode quantum information, has been successfully tested with repeated measurements on the same system, exceeding previous experimental limits.
Researchers create integrated quantum transceiver capable of sending and receiving quantum information over various waveforms, enabling fast, robust and photon-efficient quantum communications. The team aims to develop a single-chip system that can be used for both free space and optical fiber communication.
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.
A world-first criterion for quantum supremacy has been established using the Tianhe-2 supercomputer, demonstrating a significant advantage over classical computing in boson sampling tasks. The research sets the stage for future quantum computing advancements and paves the way for experimental implementation of quantum devices.
The Quantum Flagship program will consolidate Europe's best quantum physics research and transfer technology to the market. Aalto University is involved in three projects: QMiCS, macQsimal, and S2QUIP, focusing on quantum communication, ultra-sensitive magnetic sensors, and photon-emitting quantum chips.
Researchers at UC Berkeley have developed a practical proposal known as random circuit sampling (RCS) to prove quantum supremacy in quantum computers. This technique uses complex mathematical constructs to demonstrate the 'quantum accent' of a device, making it difficult for classical computers to replicate.
Rare earth ions exhibit potential for storing quantum states and interacting with each other, enhancing computation capacity. Researchers aim to establish scalable quantum technologies using these elements.
A new quantum network is being developed in the Chicago area to test unhackable communications, using principles of quantum physics to send information. The project aims to create a secure network with wide-ranging impact on communications and national security.
Researchers at QuTech have developed a comprehensive guide towards a world-wide quantum internet, describing six phases of network development from simple qubit networks to fully quantum-connected computers. This will enable secure quantum communications and applications such as precise clock synchronization and virtual telescopes.
Scientists have developed a quantum circuit that demonstrates the advantage of quantum computers over classical systems. The new design exploits quantum physics' non-locality to solve complex problems efficiently. This breakthrough brings us closer to realizing near-term experimental realizations of quantum algorithms.