Articles tagged with Quantum Dynamics
A research team at the Duke Quantum Center has observed string-breaking dynamics related to particle-antiparticle formation on a quantum simulator. The experiment emulates a phenomenon where two connected fundamental building blocks of matter stretch apart, creating new particles when the connection snaps.
Researchers found a mathematical solution describing how a spin glass transitions to ultrafast behavior resembling a black hole. The discovery connects ultraslow quantum magnetism to fast, entangled dynamics, with potential applications in quantum technologies.
Mandal is working to develop computer tools for designing quantum materials required for quantum computers and advanced technologies. His research focuses on understanding and designing materials that can protect delicate quantum states.
Researchers at Queen Mary University of London have developed a new method for studying complex quantum systems using quantum computational spectroscopy. This approach allows for the investigation of a wider range of quantum systems, including those affected by their environment or changing over time.
Fractons, exotic quasi-particles, have been detected in a quantum solid-state model, paving the way for experimental verification. Theoretical physicists had predicted their existence in various systems, including quantum spin liquids, using highly generalised gauge field theories.
Researchers have developed an approach to quantify the errors in quantum simulators, allowing for more accurate calculations and enabling the study of complex many-particle systems. The new method was tested on a system of ten ions and then applied to a chain of 51 ions, demonstrating its effectiveness for larger systems.
Researchers developed a theoretical framework explaining unusual conduction behavior in magnetic materials. Quantum fluctuations affect electron transport in chiral magnets, leading to logarithmic temperature dependence at low temperatures.
Physicists at the University of California San Diego discovered that substrates are not inert when subjected to electrical stimulus, instead coupling with thin film. This finding has implications for building brain-inspired computer chips needed for energy-efficient computing.
Researchers have demonstrated that topological insulators can withstand higher measurement currents while maintaining precise Hall resistance values, paving the way for more accurate electrical standards. This breakthrough overcomes significant technical obstacles and enables the development of universal electrical references.
A Tulane University team is using AI to discover new superconductors, which could improve the nation's electrical grid, medical imaging, and quantum computing. The project combines high-fidelity calculations, physics-aware AI, and experimental measurements to accelerate discovery.
Researchers use periodic driving to transform optical lattice into accurate SYK model simulator, reproducing strong quantum chaos and information scrambling. This method opens door to studying complex quantum phenomena in strongly interacting systems.
Researchers at Aalto University have demonstrated the first cyclic quantum heat engine inside a superconducting circuit, enabling technologies needed for high-qubit quantum computers. The study provides a solid proof of concept for superconducting heat engines and could reduce the cost and complexity of large-scale quantum computing.
Researchers at Texas A&M University develop a laser technique called TRIP to directly measure quantum forces shaping proteins, enabling accurate prediction of how pharmaceutical drugs interact with them. This breakthrough could lead to the design of medicines tailored to specific diseases, revolutionizing precision medicine.
Researchers have developed a new theory that enables the description and simulation of non-reciprocal interactions, which are essential for studying complex systems like flocks and swarms. By introducing auxiliary degrees of freedom, physicists can now accurately model these systems using established methods.
A research team at Postech has developed a next-generation laser emission platform capable of precise color control under battery-level low voltage. The technology achieves ultra-high color purity and continuous spectral tunability within a single device, overcoming limitations of conventional display light sources.
A UB-led team has found a way to help chiral semiconductors, electronic materials whose structures are left- or right-handed like many of life's building blocks, absorb visible light. Researchers chemically combined a chiral semiconducting material with a non-chiral molecule that more readily absorbs visible light.
A Würzburg research team has successfully demonstrated the KPZ universality class in two-dimensional systems and interfaces, verifying a powerful framework for modeling growth processes. By controlling non-equilibrium quantum systems, they found that polaritons follow the KPZ model.
The ARLIS initiative aims to apply Zero Trust Architecture principles to quantum systems, evaluating security postures and developing recommendations for future security standards. By aligning emerging quantum technologies with national security standards, ARLIS seeks to enable rapid government adoption of quantum systems.
Researchers at TU Wien have found a simple formula to quantify the effect of measurement disturbance on quantum state correlation. The correlation-disturbance relation shows a basic trade-off between the two, with implications for quantum measurement devices and experimental estimation.
Researchers investigated the role of memory in quantum systems and dynamics, discovering a process can appear memoryless from one view while retaining memory from another. The study clarifies a fundamental aspect of quantum dynamics and highlights the uniquely quantum nature of time evolution.
Giant superatoms combine two quantum-mechanical constructs to suppress decoherence and create entanglement, opening opportunities for scalable and reliable quantum systems. This breakthrough enables quantum information to be protected, controlled, and distributed in new ways.
Duke University researchers have observed statistical localization in a neutral-atom platform, where most configurations of quantum bits remain effectively frozen. This phenomenon has implications for robustly storing information in a quantum system and could be a powerful feature of quantum mechanics.
Physicists have developed a way to accurately measure time in quantum events without using an external clock. The study found that the atomic-scale shape of materials influences how quickly quantum transitions unfold, with lower-symmetry structures leading to longer transition times.
Researchers have identified a new class of one-dimensional particles, dubbed anyons, which exhibit properties between bosons and fermions. The discovery opens up new possibilities for investigating fundamental physics in realistic experimental settings.
A new project aims to develop robust logical quantum bits for scalable and fault-tolerant quantum computing. The snaQCs2025 project combines innovative simulation and integration methods to compensate for error susceptibility of physical qubits, bringing quantum computing closer to practical use.
Theoretical physicists at MIT propose that under certain conditions, magnetic material’s electrons could form quasiparticles called “anyons” that can flow together without friction. If confirmed, it would introduce a new form of superconductivity persisting in the presence of magnetism.
Scientists have created a new quantum state, known as hybrid excitons, at the interface of organic and 2D semiconductors. This unique state enables ultrafast energy transfer, which holds promise for developing next-generation solar cells and optoelectronic components.
Researchers at Paderborn University and TU Dortmund University have developed materials smaller than the wavelength of light and precisely manipulated photons. They created quantum light sources for quantum computing and ultra-fast communication, as well as low-temperature electronics to control quantum experiments.
A team from the University of the Witwatersrand and Huzhou University discovered a vast alphabet of high-dimensional topological signatures, enabling robust quantum information encoding. This breakthrough utilizes orbital angular momentum to reveal hidden topologies in entangled photons.
A NPS doctoral student has been recognized for his groundbreaking research on quantum sensing, aiming to detect minuscule changes in mass from afar. The project involves building an atomic fountain, which will enable sensitivity to gravity nine decimal places of precision.
A team of researchers at the University of Basel has developed a new approach to applying thermodynamics to microscopic quantum systems. They defined what constitutes
Researchers at the Institute of Industrial Science, The University of Tokyo, have precisely detected quantum tunneling of hydrogen atoms in palladium metal. Hydrogen atoms can pass through energy barriers via quantum tunneling due to 'quantum' effects.
Scientists found that a thin layer of germanium-tin sandwiched between silicon-germanium-tin barriers enhances electronic charge mobility. This discovery could advance neuromorphic computing and quantum computers, as well as enable new control knobs for engineering material properties.
A South Korean research team has discovered a molecular-level mechanism to switch the charge polarity of organic polymer semiconductors by adjusting the concentration of a single dopant. This enables polymers to exhibit both p-type and n-type characteristics, eliminating the need for separate materials or complex device architectures.
A new study by MIT researchers evaluates the scale-up potential of over 16,000 quantum materials, finding that those with high quantum fluctuation in electrons tend to be more expensive and environmentally damaging. The team identified promising candidates with an optimal balance between quantum functionality and sustainability for fur...
Researchers at MIT have developed a new method to improve the stability of optical atomic clocks by reducing quantum noise and stabilizing a laser. The approach, known as global phase spectroscopy, doubles the precision of an optical atomic clock, enabling it to discern twice as many ticks per second compared to traditional setups.
Researchers at TU Wien have created a new type of time crystal through the interaction of particles in a two-dimensional lattice held by laser beams. The emergence of this phenomenon challenges previous thought that quantum fluctuations could only hinder the formation of time crystals.
Researchers at Tampere University discovered that quantum scars enhance electron transport in open quantum dots, enabling electrical conduction in nanoscale components. This breakthrough paves the way for developing efficient microchips and potentially new types of qubits for quantum computing.
Researchers at Kobe University investigated how different manufacturing techniques affect the electronic structure of magnetic tunnel junctions. They found that the surface of ferromagnets is different when insulators are transferred to them compared to growing crystals on insulator flakes. This difference influences device behavior, p...
Researchers at Washington University in St. Louis have created quantum sensors that can measure stress and magnetism in materials under pressure exceeding 30,000 times the atmospheric pressure. These breakthrough sensors offer a new frontier for studying high-pressure phenomena in fields like astronomy, geology, and superconductivity.
Researchers at Pohang University of Science & Technology have successfully synthesized Prussian Blue with an octahedral morphology by using a specialized solvent. The new crystal shape enhances electrochemical reactivity and stable performance in sodium-ion hybrid capacitors.
Noncommutative metasurfaces enable diverse path entanglement by exploiting interaction between metasurfaces and entangled photons, expanding quantum information processing capabilities. The research paves the way for high-dimensional information encoding in quantum communications and parallel processing in quantum computing.
Researchers at Rice University have demonstrated a strong form of quantum interference between phonons, revealing record levels of interference. The breakthrough could lead to new technologies in sensing, computing, and molecular detection.
MIT physicists performed an idealized version of the double-slit experiment, confirming light behaves as both a particle and wave. The more information obtained about light's path, the lower the visibility of the interference pattern was.
Researchers successfully confirmed long-standing 'electron tunneling' phenomenon, revealing surprising interactions between electrons and atomic nuclei during tunneling. The study's findings have significant implications for advanced technologies like semiconductors, quantum computers, and ultrafast lasers.
Researchers at Tohoku University developed a new framework for simulating nonlinear quantum dynamics, making it easier to understand and study complex quantum systems. The method uses time-evolution data to extract nonlinear response functions without requiring explicit multipoint correlations.
A new protocol has been developed to enhance quantum metrology by leveraging quantum resonance dynamics in periodically driven spin systems. This approach eliminates the need for highly entangled states and achieves Heisenberg-limited measurement precision. The protocol starts with a robust and easily prepared SU(2) spin coherent state...
A national pilot program led by UTA faculty is helping take the mystery out of quantum physics for students and educators. The program, Quantum for All, provides hands-on curriculum and classroom strategies to equip high school science teachers with the tools they need to teach quantum science.
The latest issue of Optica Quantum features research on cryogenic photonic links for superconducting qubits, spatio-spectral quantum state estimation of photon pairs from optical fiber, and quantum optical reservoir computing powered by boson sampling. These studies demonstrate breakthroughs in measuring and optimizing quantum states, ...
Researchers at Rice University have conducted the first direct search for ultralight dark matter using a magnetically levitated particle. Despite high sensitivity, they did not find evidence of the anticipated signal, ruling out specific interactions between dark matter and ordinary matter.
Researchers have identified a three-dimensional quantum spin liquid in cerium zirconate, exhibiting emergent photons and fractionalization. This discovery could lead to breakthroughs in superconductors and quantum computing.
Researchers developed a machine learning framework that can predict how materials respond to electric fields up to a million atoms, accelerating simulations beyond quantum mechanical methods. This allows for accurate, large-scale simulations of material responses to various external stimuli.
Researchers at TU Wien have measured what happens when quantum physical information is lost, confirming Rolf Landauer's principle that deleting information always results in entropy transfer and energy loss. This study explores the connection between thermodynamics, information theory, and quantum physics.
Researchers have developed a new type of exotic quantum material that can maintain its quantum properties when exposed to external disturbances, paving the way for robust quantum computers. The breakthrough uses magnetism to create stability, making it an important step towards realising practical topological quantum computing.
KAIST and Mainz researchers have predicted a 3D magnon Hall effect, demonstrating the ability of magnons to move freely and complexly in 3D space. This breakthrough could lead to novel functionalities in next-generation computing structures.
Researchers have demonstrated a new quantum sensing technique that surpasses conventional methods by counteracting the limitation of decoherence. The study's coherence-stabilized protocol allows for improved sensitivity and detection of subtle signals, with up to 1.65 times better efficacy per measurement.
Researchers have directly observed a superradiant phase transition (SRPT) in a magnetic crystal, overcoming a long-standing limitation in theoretical physics. The phenomenon occurs when two groups of quantum particles fluctuate collectively without external triggers, forming a new state of matter with unique properties.
Engineered materials mimic quantum behaviors, allowing for the simulation of Schrödinger dynamics in classical systems. This breakthrough enables the study of quantum phenomena in more accessible environments, paving the way for novel technologies.
Researchers found dramatically enhanced heat oscillations in ZrTe₅ under strong magnetic fields and low temperatures, attributed to a novel mechanism involving electron-phonon interactions. This phenomenon is counterintuitive and has significant implications for understanding quantum transport in semimetals.
Physicists at Washington University in St. Louis have created a novel phase of matter called a time quasicrystal, which vibrates at precise frequencies over time. The researchers built the quasicrystals inside a diamond chunk using powerful nitrogen beams and microwave pulses.