Articles tagged with Quantum Measurement
Scientists at University of Bath found a way to bind two photons together, creating photon-photon polaritons with predicted masses 1,000+ times lighter than electrons. This discovery has potential applications in terabit and quantum optical communication schemes and precision measurements.
Researchers have discovered that individual molecules on a metal surface can interact with each other over large distances, potentially revolutionizing the field of computing. This phenomenon has significant implications for the development of new electronic and optoelectronic technologies based on organic molecules and 2D materials.
A researcher at Hiroshima University has proposed a method to test the precision of measurements in quantum systems. By using a qubit as an external probe, he demonstrates that different measurements can accurately determine the same physical property before measurement, even when values change based on the procedure.
Researchers achieved a novel approach to control the interactions between microwave photons and magnons, enabling on-demand tunability of microwave-magnonic devices. This breakthrough has significant implications for electronic devices and quantum signal processing, potentially leading to advances in both fields.
Polaritons interact more than expected due to strong light-matter coupling and huge exciton-photon mass ratio. This challenges common assumptions about these quasiparticles, shedding new light on their interactions and applications in ultra-low energy electronics.
Researchers at JILA create a dense gas of ultracold potassium-rubidium molecules, gaining control over long-distance molecular interactions. The new scheme enables exploration of exotic quantum states in which all molecules interact with each other.
Scientists at the University of Illinois have developed a new way to model hypersonic flow, allowing for a better understanding of thermal protection systems and heat shields. The research uses quantum physics and machine learning to simulate the interactions between molecules and atoms in extreme environments.
Australian researchers have located the 'sweet spot' for positioning qubits in silicon, essential for developing robust interactions between qubits. The team used scanning tunnelling microscope (STM) lithography techniques to precisely place phosphorus atoms and create reproducible, strong and fast interactions.
Researchers from the University of Pittsburgh have created a serpentine path for electrons, changing their properties and giving rise to new behavior. The work uses a nanoscale sketching technique to engineer spin-orbit interactions, which could be useful in future quantum technologies.
The study successfully demonstrated an optimal entanglement collective measurement that reduces quantum backaction to zero in a two-qubit system under strongly coherent evolution. The experiment achieved high fidelity of 98.5% and marks a significant advancement in the field of quantum thermodynamics.
Researchers at Osaka City University have found a way to fine-tune quantum resonance in layered structures of quantum dots, leading to improved charge transport and potential applications in solar cells. The breakthrough involves controlling the distance between quantum dot layers using short ligands and polyelectrolytes.
Researchers from University of Bristol's QET Labs developed a tiny device that measures quantum features of light at record high speeds. This achievement promises novel routes to outperform current state-of-the-art in computing, communication, and measurement.
Researchers at Princeton University create device that excites erbium atoms using laser light, allowing control of multiple atoms without spatial information. This enables study of rich quantum mechanical behavior and entanglement in atoms at tiny distances.
Researchers at a new DOE center are developing cutting-edge quantum sensing devices to unravel the mysteries of quantum materials. The devices will allow scientists to probe materials with pairs of photons or electrons, paving the way for discovering new quantum materials and inventing more sensitive probes.
Researchers aim to demonstrate ideal energy transfer in quantum systems, potentially leading to more efficient engines and quantum computers. The project uses superconducting circuits to design experiments that can be carried out within realistic quantum systems.
Researchers have discovered a method to prepare robust initial states in quantum information systems, minimizing unwanted transitions and preserving quantum information. This breakthrough could enable more complex operations in quantum computing.
Researchers at Kiel University found that neglected magnetic interactions play a key role in stabilizing skyrmions, increasing their lifetime and opening up new material systems. The discovery could enhance the stability of skyrmions, enabling their use in future electronic devices and data storage concepts.
Zhao is developing numerical algorithms to describe superfluidity and magnetic orders in repulsively interacting Fermi gases of ultracold atoms. His work aims to understand complex quantum matter, enabling scientists to design better materials.
A team of scientists has developed a novel method for measuring ultra-cold temperatures using a single, super-cooled atom as a thermometer. This technique allows for the detection of minute changes in temperature, essential for harnessing quantum technologies and reducing noise in quantum experiments.
Researchers have successfully observed the interaction of two time crystals, a major breakthrough that could lead to applications in quantum information processing. The discovery showcases controlled interactions between time crystals, a crucial step towards harnessing their potential.
Scientists have found that quantum particles can carry unlimited information about interacted objects, enabling precise measurements. Researchers developed a new technique using quasi-probabilities to improve metrology, leading to potential breakthroughs in super-precise microscopes and quantum computers.
The new Q-SEnSE center will explore grand challenges in quantum sensing, measurement science, and advancing real-world technologies. Researchers will partner with engineers to turn advancements into practical applications, educating the next generation of quantum workforce.
A new quantum classifier introduces a tailored quantum kernel, outperforming AI technology and enhancing classification tasks with small datasets. The method exploits the quantum advantage in finding non-linear features, leading to significant improvements.
Researchers have created a metal-like quantum gas by exciting electrons in ultracold rubidium atoms, allowing for ultrafast simulation of many-body electron dynamics. The exotic phase has the potential to enhance our understanding of physical properties like superconductivity and magnetism.
Physicists from Martin Luther University Halle-Wittenberg propose a new theory to describe Bose-Einstein condensates, overcoming complex equations and models. The new method simplifies interactions between particles in the condensate, enabling accurate predictions of their behavior.
Researchers at MSU solved the long-standing enigma of the magnesium dimer's high-lying vibrational states using advanced computational methods. The team's findings, published in Science Advances, provide new insights into the molecule's behavior and pave the way for future experimental studies.
Researchers at Heidelberg University have successfully constructed the symmetries of quantum electrodynamics using ultracold atoms. The findings could lead to the development of large-scale quantum devices capable of simulating complex physical phenomena.
Researchers have developed a new approach to speed up trapped ion quantum computing using giant Rydberg ions, increasing computational capacity exponentially. The experimental work confirms that the system can scale up without slowdowns, enabling large-scale quantum computation.
Researchers from ITMO University developed a new statistical analysis method to determine the size of atoms with high accuracy. This approach enables precise data on intermolecular interactions, crucial for assessing drug-protein binding and molecular structure.
Researchers directly observed a Kondo screening cloud, a quantum phenomenon that masks magnetic impurities in materials. The study confirmed theoretical predictions and provided insights into the spatial extension of the cloud, which is universally scaled by the inverse of the Kondo temperature.
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 USTC enhance quantum orienteering using entangling measurements via photonic quantum walks, achieving unprecedented efficiency. The method demonstrates a nonclassical phenomenon due to entanglement in quantum measurements, offering an effective recipe for realizing entangling measurements.
Researchers successfully measured the full quantum geometric tensor in a solid-state spin system using coupled qubits in diamond. The technique enables precise measurement of the tensor's matrix elements, including Berry curvature and Riemannian metric.
Researchers simulate condensate behavior during inflationary period, revealing gravitational disintegration mechanism. The simulation provides new insights into the formation of dark matter and potential predictions for cosmological observables.
Researchers at the University of British Columbia have demonstrated a new way to control electrical currents in materials by leveraging electron spin and orbital rotation. This breakthrough enables metal-insulator transitions, which could lead to new electronic, magnetic, and sensing applications.
Researchers have recorded how electrons interact with atomic vibrations in solids, capturing the processes that cause electrical resistance and superconductivity. The study enables visualization of dynamic properties of quantum materials, shedding light on high-temperature superconductivity and other phenomena.
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 LMU Munich and the Max Planck Institute of Quantum Optics successfully simulated a specific lattice gauge theory using two-component ultracold bosons in optical superlattices. The study provided a controlled view of fundamental physical phenomena, including the interactions between particles mediated by gauge fields.
Researchers at Stevens Institute of Technology have developed a nano-scale chip that facilitates photon interactions with much higher efficiency than any previous system. The breakthrough could enable the creation of powerful quantum computing components such as photonics logic gates and entanglement sources.
Researchers have made substantial progress in engineering quantized gauge fields coupled to ultracold matter, a versatile platform for tackling complex problems in physics. By controlling the Peierls phase, neutral atoms can mimic charged particles moving in magnetic fields.
The NIST team has upgraded their compact atomic gyroscope to enable simultaneous measurement of rotation, rotation angle and acceleration with a single source of atoms. The instrument's sensitivities for the magnitude and direction of the rotation measurements are approaching those achieved by other research groups using larger atom in...
Scientists observe a break in a single quantum system for the first time, potentially revolutionizing our understanding of quantum interactions. By manipulating the symmetry of the system, researchers can control and predict outcomes, opening doors to exotic physics.
Nagoya University researchers have successfully synthesized plumbene, a lead-based 2D material that exhibits the largest spin-orbit interaction among its cousins. The discovery was achieved through epitaxial growth on a palladium substrate, revealing a honeycomb structure with potential applications in topological insulators and quantu...
Researchers have created a sensor that can measure and image magnetic structures at the atomic scale, enabling new directions in atomic-scale research. The sensor uses a single molecule magnet as a scanning magnetometer to detect spin-spin interactions between molecules.
Researchers at the University of Otago successfully interact two individual atoms in a controlled setting, showcasing potential for new quantum technologies. This achievement represents a significant step towards creating robust entanglement technology.
JILA researchers have made a long-lived, record-cold gas of molecules that follow the wave patterns of quantum mechanics. The creation of this gas boosts the odds for advances in fields such as designer chemistry and quantum computing.
Researchers measured hundreds of individual quantum energy levels in the buckyball, revealing its intricate structure and enabling new insights into extreme quantum complexity. The findings have potential applications in quantum computing and astrophysics.
Researchers at USTC successfully observe scattering resonances between atoms and molecules at ultralow temperatures, advancing ultracold polar molecules and chemical physics. The new insights aid in designing high precision clocks, powerful microscopes, and quantum computers.
A team of researchers has successfully created a Bose-Einstein condensate of Dysprosium and Erbium atoms, demonstrating quantum degeneracy of these species. This achievement opens up novel research possibilities for dipolar quantum matter due to the long-range interaction among the two species.
Researchers Nathaniel Gabor and Justin C. W. Song propose a new field of study, electron quantum metamaterials, which involves manipulating electrons in subwavelength structures to exhibit unusual behavior. This field has the potential to produce radically new phenomena, such as superconductivity in twisted bilayer graphene.
Researchers have made a major scientific breakthrough by detecting nuclear magnetism in single atoms on surfaces for the first time. The discovery uses advanced techniques to measure the nuclear spin of individual atoms, enabling identification of different isotopes atom by atom.
Researchers have developed measurement-device-independent quantum communication without encryption, eliminating key security loopholes. This protocol uses Einstein-Podolsky-Rosen pairs to ensure secure communication over long distances and high capacities.
A team of scientists has found evidence of hydrodynamic electron flow in semimetal tungsten diphosphide, a high-purity quantum material. The discovery reveals the strongly interacting nature of electrons in these materials and suggests that the conversion of energy into thermal energy is limited by quantum mechanics.
Researchers at Rice University have discovered the first example of Dicke cooperativity in a matter-matter system, which could lead to faster information processing and lower power consumption. The discovery uses a magnetic field to prompt cooperativity among spins within a crystalline compound made primarily of iron and erbium.
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.
Alessandro Baroni's thesis work using chiral effective field theory has characterized neutrino interactions with nuclei at low energy. His calculations combined theoretical framework and ab initio computational methods, leading to results in agreement with previous phenomenological calculations.
Researchers at Purdue University have discovered a way to manipulate the interaction between paired and lined-up electrons in semiconductors. This finding has potential implications for electronic devices and quantum computing, as it allows for the tuning of electron-electron interactions and the control of phase transitions.
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 ...
Physicists use powerful supercomputers to solve quantum chromodynamics equations, which governs how quarks and gluons interact within neutrons. The new calculation yields the highest-ever precision of nucleon axial coupling, a property that determines the strength of neutron decay into protons.
Researchers have successfully observed the quantum mechanical Einstein-Podolsky-Rosen paradox in a system of several hundred interacting atoms, demonstrating precise predictions of measurement results. This breakthrough has implications for new sensors and imaging methods for electromagnetic fields.