Articles tagged with Quantum Superposition
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Researchers successfully transferred entangled qubit states through a communication cable, paving the way for future quantum networks. The team achieved entanglement amplification via the cable, using superconducting qubits, and demonstrated a system that can send entangled quantum states with minimal loss of information.
Researchers developed a new quantum theory that resolves the Gibbs paradox, a 150-year-old thermodynamic thought experiment. The study shows that even an 'ignorant' experimenter can extract work from a mixing process in a quantum system.
Researchers at TU Wien have produced well-defined beams of entangled atoms using ultracold atom clouds in electromagnetic traps. The creation of controlled twin pairs has been demonstrated, allowing for new quantum experiments to be carried out with these atom pairs.
Scientists have successfully demonstrated a quantum computer demonstrator using Rydberg atoms, which can perform computing operations with high precision and scalability. The research uses sophisticated laser systems to control and entangle qubits, paving the way for the development of a functional quantum computer.
Researchers from UMass Amherst have successfully demonstrated spontaneous quantum error correction, a significant breakthrough in the development of powerful fault-tolerant quantum computers. This achievement paves the way for potential advances in fields like new materials discovery, artificial intelligence, and biochemical engineering.
Researchers at the University of Vienna demonstrated a new approach to reduce noise in quantum communication schemes by sending particles along multiple paths simultaneously. This method, which utilizes quantum superposition, offers improved noise reduction and has been experimentally confirmed.
A team from Osaka City University developed a quantum algorithm that can accurately calculate energy differences between the electronic ground and excited spin states of open-shell molecular systems. This breakthrough enables efficient calculations for complex molecules, potentially revolutionizing chemical and industrial applications.
Researchers at Goethe University and the University of Oklahoma have successfully filmed a quantum wave in a helium dimer. The study uses an extremely powerful laser flash to twist the bond between two helium atoms, allowing them to observe and record the atom flying away as a wave.
A new time dilation phenomenon, known as quantum time dilation, has been predicted by researchers combining quantum mechanics and Einstein's theory of relativity. This effect can impact high-precision atomic clocks, leading to corrections in their accuracy.
The researchers found that even in ideal conditions, quantum superposition leads to rare events with higher heat dissipation than the Landauer limit, which challenges traditional understanding of information erasure. This finding has significant implications for future quantum chips and thermodynamics.
Researchers at Caltech demonstrate a molecular approach to quantum computing that leads to fewer errors, using molecules instead of atoms. The method involves rotating molecules in superposition, allowing for simultaneous correction of orientation and angular momentum shifts, which are prone to causing errors.
Researchers at UQ and Griffith University use quantum superposition of order to successfully transmit information through two noisy channels. The technique, which can nullify the effect of one noisy medium on another, has potential applications in satellite communication and secret sharing.
A group of physicists has proposed a 'table-top' device that could measure gravity waves and determine if gravity is a quantum phenomenon. The device uses a tiny diamond in quantum superposition to detect gravitational waves and create an interference pattern.
Yale physicists have developed an error-correcting cat, a quantum device that encodes information in a single physical system to suppress phase flips. The device uses a clever way to encode information, allowing it to prevent errors and correct them on command.
Researchers from UCL and international collaborators propose a detector using nano-scale diamond crystals to measure mid-frequency gravitational waves. The device would be 4000 times smaller than current detectors, enabling the study of black hole collisions and exploring nonclassical gravity.
Researchers have developed a novel error-correction scheme that takes advantage of bosonic symmetry to encode information efficiently. This approach could reduce the number of physical qubits required, enabling the scaling up of experimental quantum computers.
A team at Tokyo Medical and Dental University demonstrates a new method to increase the lifetime of qubits, enabling faster cycle times and reduced noise. This could lead to practical quantum computing applications in fields like finance and chemistry.
Researchers at ETH Zurich create a five-metre long microwave quantum link, demonstrating the feasibility of quantum local networks. The breakthrough could enable the development of powerful quantum computers by connecting smaller devices in a cluster.
Low-energy and high energy states in a layered superconducting material are found to be correlated. The study uses multidimensional spectroscopy to probe quantum coherence, producing coherent excitations lasting up to 500 femtoseconds.
Researchers created a 'film' of a single atom's measurement process, showing that the state changes gradually over time. This study provides new insights into the inner workings of nature and sheds light on the predictions of modern quantum physics.
Researchers at Stanford University have found a way to identify and control colorful defects in hexagonal boron nitride, a material that can emit bright light as a single photon. This breakthrough has the potential to create predictable sources of quantum light, a crucial component for future quantum technologies.
Researchers directly observe a dynamical topological order parameter to probe coherent quantum time evolution in quantum walks. This allows for the classification and study of quantum walks using a novel approach.
Researchers at Tel Aviv University have demonstrated the backflow of optical light propagating forward, a phenomenon predicted over 50 years ago. This discovery could aid in probing the atmosphere by emitting laser beams and detecting signals moving backward toward the source.
A recent proposal aims to test Einstein's twin paradox using quantum particles in a 'superposition' state. The goal is to measure time passing at different speeds for objects moving at high velocities or near massive objects.
Scientists from Hiroshima University and Indian Institute of Technology Bombay have found a way to determine the state of a quantum system by analyzing data from outside the system. By carefully reading the quantum data, they can restore the initial superposition of possible outcomes.
Researchers at the University of Vienna and University of Basel successfully create a quantum superposition in hot, complex molecules composed of nearly 2,000 atoms. The experiment sets new constraints on alternative theories to quantum mechanics, demonstrating the robustness of quantum mechanics on a macroscopic scale.
Researchers have developed a new tool to detect non-Gaussian noise affecting qubits, which can cause decoherence and destroy their fragile quantum state. By analyzing the noise patterns, scientists hope to gain insights into microscopic mechanisms and develop more effective methods to protect qubits from specific types of noise.
Researchers at the University of Queensland have discovered a new way of understanding time in the quantum world, where events can be in multiple states simultaneously. This 'quantum time order' challenges our classical notion of cause and effect.
Researchers have discovered that particles and even time itself can exist in a state of superposition, blurring the lines between cause and effect. This phenomenon has significant implications for quantum computing, potentially leading to breakthroughs in operations performance.
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.
Scientists have created a new record by entangling 20 quantum bits in a 'Schrödinger's cat' state, exceeding the previous limit of 14 qubits. The team used a programmable quantum simulator to control and manipulate the qubits, demonstrating the potential for quantum technologies.
Physicists at NIST developed a method to control ion motion and display exact quantities of quantum-level motion, up to 100 packets of energy. The technique enabled the creation of superpositions, allowing for more precise measurements and characterizing frequency.
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.
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 from Nanyang Technological University and Griffith University have developed a prototype quantum device that can examine all possible futures by placing them in a quantum superposition. This allows for the simulation of statistical futures and could enable more efficient learning in artificial intelligence algorithms.
Researchers at Penn State have developed a new method for measuring the quantum states of atomic qubits with unprecedented accuracy, achieving a fidelity of 0.9994. This breakthrough enables the development of more reliable and efficient quantum computers.
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.
Scientists at Institute for Basic Science achieved a breakthrough in shielding quantum properties by packing two atoms together, protecting fragile states 20 times longer than one atom. This development enables the exploration of single atoms as quantum bits for future information processing.
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.
A team of physicists has identified a way to create quantum bits in silicon carbide crystals, emitting photons at wavelengths near those used in data transmission. This breakthrough enables the potential for quantum communication through standard optical fibers, paving the way for superior computing powers and unbreakable cryptography.
Physicists have been debating whether Einstein's equivalence principle extends to the quantum world. A University of Queensland researcher and her team found that it does, with implications for our understanding of gravity and mass in quantum physics.
A new uncertainty relation has been discovered, linking the precision of temperature measurements to quantum mechanics. This discovery establishes a connection between quantum uncertainty and the accuracy of nanoscale thermometers.
Researchers have discovered that using information to extract work on a quantum scale is possible, but it comes with a catch: some information may be lost in the process. Quantum backaction allows researchers to measure particles without fully collapsing their superposition states, resulting in negative information.
Researchers have found quantum effects in photosynthetic systems at low temperatures, challenging the idea that these effects are unique to non-biological systems. The study also reveals that regular vibrations, not superposition, were responsible for earlier reported observations.
A team of researchers has successfully created a microscopic drum that can simultaneously vibrate and stand still, a phenomenon known as quantum superposition. This breakthrough is expected to enable the development of ultra-precise sensors and new types of transducers.
Researchers at NIST developed a quantum method to generate random numbers guaranteed by quantum mechanics. The new technique surpasses previous methods and enhances security in cryptographic systems. By analyzing correlations between distant photons, the researchers certified and quantified randomness available in the data.
Researchers propose storing time in a quantum superposition to reduce memory requirements for classical computer simulations. This allows for more efficient modeling of processes like traffic flow and neural firing without sacrificing predictive accuracy.
Researchers demonstrate partial quantum cloning of linearly dependent states using a new approximate cloning method. This breakthrough allows for enhanced performance in quantum computing and improves the security of quantum cryptography.
Scientists at the Institute for Basic Science have made a major breakthrough in controlling the quantum properties of individual atoms. They used advanced methods to image and measure individual iron atoms, finding that nearby electrons destroy their quantum behavior.
Scientists at KIT successfully implemented Grover's quantum algorithm using a molecular magnet to quickly find specific elements in unsorted data. The technology quadratically accelerates search and can be integrated into current electronic devices.
Researchers from Washington University in St. Louis and University of Rochester use quantum mechanics to measure frequency with unprecedented accuracy, reducing uncertainty by a factor of 100. This breakthrough has potential applications in various fields, including MRI medical imaging, navigation, and astronomy.
A team of Caltech engineers has developed the world's smallest optical quantum memory chip, capable of storing information in individual photons. The device stores data more efficiently and securely than traditional computer memory, with 97% accuracy rate.
Researchers at University of Sydney and Microsoft Station Q have confirmed the existence of Majorana fermions, a quasiparticle at the heart of topological quantum computing. This finding is essential for building practical quantum computers and will also be useful in spintronic systems.
The article presents a series of grid-based computational technologies for in silico virtual screening and molecular design of new drugs. The technologies use original CoMIn software to analyze molecular structure in terms of intermolecular interactions potentials and quantum functions.
Researchers at the University of Vienna developed a quantum ruler for biomolecules using a novel arrangement of nanogratings and laser beams. The technique allows for precise measurement of molecular electronic properties, such as those of vitamins A, E, and K1, with high accuracy.
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 applied novel method to test 'Einstein's equivalence principle' using rubidium atoms in quantum superposition states, confirming its validity with high precision. The study has potential applications in navigation, time measurements, and searching for mineral deposits.
Scientists demonstrate novel protocol using crystals to emit and store quantum light for extended distances, paving the way for a future quantum repeater. This breakthrough enables secure communication over longer ranges by harnessing the properties of quantum superposition.
Researchers at CIFAR have successfully bred Schrödinger cat states in optics, amplifying classical states of light beyond microscopic limits. This breakthrough could lead to applications in quantum communication, teleportation, and cryptography.
Physicists use a new measurement technique to observe Alice winning and losing a quantum race simultaneously, verifying superposition. This breakthrough opens up new areas for study in quantum mechanics, including the role of causal relations.