Researchers developed a technique to control and observe individual electrons in nanoscale defects, enabling the creation of quantum-state snapshots. This breakthrough contributes to quantum information processing and could accelerate development of quantum computing devices.
Scientists propose a new quantum computer architecture based on microscopic defects in diamond, which could lead to the development of reliable quantum computers. The architecture has great potential for miniaturization and mass production, similar to how transistors were miniaturized in classical computer science.
Researchers use a superconducting quantum device to record and analyze the paths a quantum system takes between two states, revealing the existence of a quantum equivalent of classical 'least action' path. The findings have implications for controlling biological and chemical systems using lasers.
Researchers have discovered a way to control quantum dot triplets using electrical impulses, which could lead to faster quantum computers. The study shows that changing the coupling of three coherently coupled quantum dots can induce a phase transition between entangled and disentangled electron states.
Physicists Sergei Filippov and Mario Ziman have found a way to preserve quantum entanglement in particles passing through an amplifier and when transmitting signals over long distances. This breakthrough allows for more efficient quantum computing and secure communication channels.
A UNSW Australia-led team found a class of cryptophytes where quantum coherence is switched off due to genetic mutations, allowing them to thrive in low-light conditions. This discovery could lead to technological advances in organic solar cells and quantum-based electronic devices.
A new study from the University of Waterloo's Institute for Quantum Computing reveals that contextuality is a necessary resource for achieving the advantages of quantum computation. Researchers have confirmed theoretically that contextuality is required for building a universal quantum computer.
A new paper reveals that contextuality is key to unlocking quantum computers' exponential computational power. Researchers use contextuality to design better algorithms and build more reliable quantum systems.
Physicists at Rice University have discovered a new class of materials that exhibit quantum criticality, a phenomenon closely related to high-temperature superconductivity. The research provides valuable insights into the behavior of heavy fermion metals, which could lead to a broader understanding of quantum criticality.
Researchers will develop piezoelectric materials and nanometer-scale electromechanical devices to transfer information between quantum states and light using mechanical motion as an intermediary. The goal is to establish a technology that connects individual quantum states and enables the creation of quantum networks.
A new 5-qubit array demonstrates improved reliability in quantum computing, a crucial step towards building a functional quantum computer. The team's findings are based on theoretical work by Austin Fowler and the surface code architecture, which provides a way to control qubits properly.
Scientists at Yale have confirmed a long-held theoretical prediction in physics, improving the energy storage time of a quantum switch. The breakthrough opens new frontiers for quantum information processing and measurement systems.
Recent studies have explored quantum superposition and its potential applications, including quantum computing and optical clocks. Researchers have developed advanced techniques to manipulate individual quantum systems, such as ion traps and microwave cavities, allowing for the investigation of fundamental quantum mechanics.
Researchers have demonstrated a form of quantum cryptography that protects people doing business with others they may not trust. The protocol, known as 1-2 random oblivious transfer (ROT), allows two parties to securely exchange information without revealing their picks, making it ideal for secure identification and online transactions.
A team of scientists from USC developed a strategy to link quantum bits together into voting blocks, significantly boosting accuracy when the D-Wave quantum processor is led astray by noise. This method results in at least a five-fold increase in probability of reaching the correct answer on large problems.
Professor Geoff Pryde from Griffith University's Centre for Quantum Dynamics has been recognized for his pioneering contributions to quantum information science, including the first entangling optical quantum computer logic gate and fundamental experimental studies of quantum entanglement.
Researchers at the University of Rochester have developed a new method called direct measurement that can characterize high-dimensional quantum states in a single experiment with no post-processing. This technique offers an exciting alternative to quantum tomography and could be central in developing high-security quantum communication...
Researchers at NIST and the University of Copenhagen created an experiment where ions were linked to the outside world, resulting in a stable entangled state. This method could lead to new architectures for quantum computing that can tolerate noise and errors.
Researchers from ETH Zürich and University of Calgary demonstrated the sharing of light between two artificial atoms in a one-dimensional system. This effect has significant implications for future applications in advanced quantum devices.
Physicists at the University of Basel have developed a quantum-classical hybrid system to stabilize the wavelength of photons emitted by a semiconductor, removing charge noise and enabling a stable single-photon source. This breakthrough could lead to improvements in semiconductor-based spin qubits and quantum communication.
Researchers have developed a protocol to verify quantum computer results without using additional quantum computer resources. The test involves inserting 'traps' into tasks, which the user knows the result of in advance, allowing for reliable verification of the quantum computer's accuracy.
A UC Santa Barbara research team has demonstrated a nanomechanical transducer that provides strong and coherent coupling between microwave signals and optical photons. This breakthrough enables the translation of electrical quantum states to optical quantum states, paving the way for secure communication and quantum teleportation.
The University of Calgary has launched the Institute for Quantum Science and Technology (IQST), a unit dedicated to research, training, and outreach in quantum science. The IQST will focus on key research themes such as quantum optics, quantum information, and nanotechnology, with a goal of advancing transformative technology.
Researchers at Vienna University of Technology study a large cloud of atoms and find that disorder spreads with a certain velocity, leading to the loss of quantum properties. As the disorder grows, a temperature emerges in the system, mirroring classical behavior.
Researchers in Tokyo and Mainz have successfully teleported photonic qubits with extreme reliability using a hybrid technique. The accuracy of the transfer was 79-82 percent, surpassing previous experiments.
Researchers have created a method to control quantum bits using resonances in artificial atoms, enabling exponential parallel computation and solving complex tasks. The technique combines classical solid-state physics with atomic physics techniques, allowing for controlled electron spin orientation without measurement.
The University of Toronto has awarded Michel Devoret and Robert Schoelkopf the John Stewart Bell Prize for their groundbreaking contributions to quantum mechanics. Their pioneering work in 'circuit quantum electrodynamics' has opened up new avenues for studying fundamental quantum physics.
Physicists at the University of Calgary successfully tested quantum mechanics on a large scale, creating a system in two substantially different states at once. This breakthrough demonstrates the application of quantum superposition principles to everyday macro objects.
The USC-Lockheed Martin Quantum Computing Center has successfully demonstrated the functionality of a large-scale quantum optimization processor, with 128 qubits. The team verified that the device operates as a quantum processor, using quantum mechanics to solve optimization calculations.
A new method for designing quantum memory has been developed, enabling long-term storage of quantum states with low error rates. This breakthrough could revolutionize information processing and solve complex problems in fields like materials science and physics.
Researchers at Vienna University of Technology have demonstrated experimentally that ultra-thin glass fibers can store quantum information long enough to be used for entangling atoms hundreds of kilometers apart. This is a fundamental building block for a global fiber-based quantum communication network.
Theorists have found new methods to determine the likelihood of quantum encryption scheme failure, enabling device-independent cryptography. This allows for the estimation of failure probabilities without relying on assumptions about the reliability of devices.
Researchers at the University of Innsbruck and Complutense University of Madrid use a quantum simulator to study quantum mechanical phase transitions in many-body systems. They observe how competition between two processes takes place, leading to fragile long-range correlations between distant particles.
Researchers Corsin Pfister and Stephanie Wehner discovered a new principle that rules out discrete theories incompatible with quantum physics. The principle assumes that measuring a system yields no information implies the system has not been disturbed.
Researchers from Australia have achieved a breakthrough in detecting the spin state of a single atom using a novel combined optical and electrical approach. This innovation brings closer the prospect of a global quantum internet, which could revolutionize secure communications for various industries.
University of Chicago researchers engineer small molecules that support long-lived quantum coherences, mimicking photosynthetic systems. These findings demonstrate the feasibility of recreating quantum mechanics in man-made compounds.
Researchers at ETH Zurich have developed a new control method for quantum systems, enabling precise steering through Hilbert spaces. This breakthrough has significant implications for the development of practical quantum computers.
Scientists have demonstrated a process where quantum dots can self-assemble at optimal locations in nanowires, improving the efficiency of solar cells, quantum computing, and lighting devices. The breakthrough enables precise positioning of quantum dots relative to the nanowire's center, leading to high optical properties.
Physicists at Georgia Tech studied how quantum information propagates through Bose-Einstein condensates, establishing the top speed for quantum computer communication. The research could address the decoherence problem and enable ultra-fast computing.
Scientists have transmitted a secure quantum code via satellite, promising secure global communication. The experiment uses quantum states of single light quanta, making data transmission virtually un-hackable.
Researchers at Cambridge University have successfully generated high-quality photons identical to lasers from solid-state devices, a major breakthrough towards quantum networking. This achievement brings us closer to realizing a quantum internet, where distributed networks can share highly coherent and programmable photonic interconnects.
Researchers are pursuing a quantum satellite concept to establish a secure global quantum communication network by harnessing the signal's travel time in empty space. The team has emphasized precise alignment between the satellite and ground stations to ensure accurate measurement of photons.
Researchers at the University of Bristol successfully implemented a full quantum circuit to calculate unknown eigenvalues using a quantum algorithm without prior knowledge. This achievement marks an important step towards practical quantum computing, enabling applications in quantum simulations and metrology.
Scientists from NREL and partners successfully demonstrated self-assembling quantum dots in a nanowire system for quantum photonics. The breakthrough could improve solar cell efficiency, quantum computing, and lighting devices due to the precise positioning of quantum dots within the nanowire.
Researchers at the University of Innsbruck successfully reversed a quantum measurement using quantum error correction protocol, which contradicts foundational principles. This experiment demonstrates that information can be reconstructed from entangled states after individual particle measurements.
Canadian Institute for Quantum Computing research focuses on harnessing quantum laws to develop game-changing technologies. Experts hope to engineer benefits of quantum mechanics in sensor technology.
Researchers at the University of Waterloo's Institute for Quantum Computing have proposed a new model for universal computation using multi-particle quantum walks, which could lead to significant quantum speedup and pave the way for scalable future experiments. The model has potential for natural realization in various systems.
A research team at the University of Innsbruck has successfully transferred quantum information from an atom to a single photon, paving the way for the construction of a quantum internet. This breakthrough enables the transfer of quantum information over optical channels between quantum computers.
Researchers have made significant progress in studying quantum entanglement, a phenomenon where electron spins are connected. By calculating the extreme version of entanglement, they found a way to predict this characteristic and expect it to benefit fields like information technology.
Physicists have demonstrated a new type of quantum entanglement using three particles, building on Einstein's original ideas. This experiment may lead to the creation of hybrid quantum systems with multiple unique properties.
Griffith University researchers have developed a device capable of amplifying the information in a single photon without adding noise, preserving quantum information. The breakthrough has far-reaching implications for quantum technologies, including improved quantum cryptography and long-distance communication.
Researchers at the University of Vienna have achieved a world record in entangling twisted light quanta, demonstrating a new method for gyrating photons. This breakthrough could lead to entangling and twisting macroscopic objects in two different directions.
A team from the University of Bristol's Centre for Quantum Photonics has developed a technique to recycle particles in a quantum computer, reducing physical resources required for factoring. This breakthrough enables more efficient calculations, paving the way for larger implementations of quantum algorithms.
A team of scientists corrected a fundamental rule in quantum mechanics by slowing down particles to extremely cold temperatures. They used the University of Florida's Microkelvin lab, which can reach temperatures near absolute zero, to observe and manipulate quantum systems.
A research team created the first working quantum bit based on a single atom in silicon, representing a major advancement towards ultra-powerful quantum computers. The breakthrough enables the manipulation of data on an electron's spin to form a quantum bit, a fundamental unit of data for quantum computing.
Physicists at the University of Vienna successfully transmitted quantum states between two islands in the Canary Islands, overcoming previous distances of just 97 km. The experiment uses active feed-forward protocol to enable reliable quantum teleportation over long distances.
A new study by an international team has identified that quantum discord, a more robust and accessible phenomenon than entanglement, can provide a quantum advantage. Researchers have discovered a direct link between quantum power and quantum discord, which can be tapped with the right quantum tools.
Researchers at the University of Vienna have discovered that non-entangled states can outperform entangled counterparts for remote state preparation under certain conditions. High quantum discord is a key factor in achieving this outcome.
Researchers at Harvard University have successfully created room-temperature quantum bits that can store information for nearly two seconds. This achievement is a significant step towards building a functional quantum computer and opens up new possibilities for various applications such as quantum cash and secure communications.
A new experiment shows that light exhibits both electric and magnetic fields simultaneously, violating classical physics, and demonstrating its quantum mechanical nature. The study's findings have implications for understanding the behavior of other systems and developing quantum computers.