Articles tagged with Quantum Criticality
Researchers have discovered a new quantum state of matter that combines quantum criticality and electronic topology, paving the way for advancements in computing, sensing, and materials science. This hybrid state has potential applications in real-world technologies due to its durable and highly sensitive qualities.
Researchers explore evaluation methods for sensitivity limits of quantum magnetometers, revealing intrinsic connections and relationships between quantum characteristics. The study advances theoretical development in quantum magnetometry and experimental optimization.
Recent study on 2M-WS2 reveals coexistence of striped surface charge order with superconductivity, modifying spatial distribution of Majorana bound states. Experimental results demonstrate that surface charge order does not destroy bulk topology but can modify MBS positions.
A team of physicists at Rice University has made a breakthrough in understanding the behavior of strange metals by leveraging quantum information theory. Electron entanglement peaks at a critical transition point, shedding new light on the exotic properties of these materials.
Researchers propose a new strategy to stabilize quantum networks by rebuilding connections after each use, which leads to an eventual stable network state. The key is finding the optimal number of links to add, determined to be the square root of the number of users.
Researchers at Rice University have uncovered a phenomenon where quasiparticles lose their identity in extreme quantum materials, leading to unique properties. This discovery has broader implications for understanding transitions in other correlated materials and creating advanced superconductors.
Researchers at NCSA have presented a novel post-quantum cryptography network instrument to measure PQC adoption rates and ensure secure data safeguarding. The project's findings indicate that only OpenSSH and Google Chrome have successfully implemented PQC, achieving an initial adoption rate of 0.029%.
Researchers have demonstrated a novel method to increase the density and depth of nitrogen-vacancy centers in type-Ib diamonds through controlled temperature and orientation. This study advances our understanding of diamond materials and opens up new possibilities for cutting-edge scientific and technological applications.
Researchers from the University of Portsmouth unveiled a quantum sensing scheme that enhances superresolution imaging techniques, circumventing traditional limitations like diffraction. The new technique achieves unprecedented levels of precision, paving the way for new high-precision sensing schemes.
Researchers detect weak fluctuations in superconductivity and reveal a quantum critical point where quantum fluctuations are strongest. The discovery sheds light on the origin of an anomalous metallic state in magnetic fields.
Entanglement is crucial for quantum computing, and researchers have proposed a condition to maximize it. The study, published in Physical Review B, uses the Hellmann-Feynman theorem as a reference point to explore finite temperature and quantum critical points.
Rice physicists find that a 'strange metal' quantum material exhibits greatly suppressed shot noise, suggesting unconventional charge transport mechanisms. The study provides direct empirical evidence for the idea that electricity may flow through strange metals in an unusual liquidlike form.
Researchers have found that certain materials can exhibit D-wave effects, entangled with other quantum states, allowing for efficient coupling at higher temperatures. This breakthrough bridges condensed matter physics subfields and could enable practical applications of quantum computing.
A new mathematical theory developed by scientists at Rice University and Oxford University can predict the nature of motions in complex quantum systems. The theory applies to any sufficiently complex quantum system and may give insights into building better quantum computers, designing solar cells, or improving battery performance.
Scientists at Stanford University and SLAC National Accelerator Laboratory have made progress toward building a novel quantum simulator. The device can simulate interactions between two quantum objects, paving the way to study complex systems and answer fundamental questions in physics.
Researchers from Rice University and partners identified three promising candidate materials using a new framework that cross-references information in a database of known materials with theoretical calculations. The method could help explore strongly correlated topological matter, a large and largely uninvestigated landscape.
Researchers created a new ultra-thin material with quantum properties emulating rare earth compounds. The material exhibits the Kondo effect, leading to macroscopically entangled state of matter producing heavy-fermion systems.
Heavy fermion systems like CeRh6Ge4 display a 'strange metal' phase with linear resistivity and logarithmic specific heat coefficient upon pressure application. This behavior is similar to cuprate superconductors, indicating an unconventional quantum critical point.
Scientists have discovered a semimetal, CeRu4Sn6, that is naturally at the quantum critical point without external influences. This finding has significant implications for developing powerful new quantum technologies and discovering new phases of matter.
A team of physicists from Rice University and colleagues discovered that quantum fluctuations may give rise to topological phases of matter. The study used magnetic susceptibility, specific heat, and inelastic neutron scattering measurements to show that the material CeRu4Sn6 is quantum critical without fine-tuning.
Researchers have discovered strong evidence of quantum fluctuations near a quantum critical point in a copper oxide material, which could lead to new understanding of high-temperature superconductivity. The study used RIXS to map out phonon vibrations and observed unexpectedly strong charge order excitations at the QCP.
Physicists observe entanglement among trillions of flowing electrons in a rare quantum phase transition, revealing new insights into quantum criticality. The study sheds light on the behavior of exotic materials and their potential applications in computing and communications.
Physicists observe unusual quantum critical point in a heavy fermion compound, breaking the Kondo effect and exhibiting strange metal behavior. The discovery could lead to the creation of new sustainable materials for quantum information devices and superconductors.
Researchers at Rice University found a way to safeguard quantum bit information by studying the behavior of heavy fermions in extreme cold and magnetic fields. The discovery provides a new approach to minimize decoherence, a major concern in qubit design.
Scientists at Ames Laboratory have discovered a new quantum criticality in a superconducting material, exhibiting a hedgehog spin-vortex crystal antiferromagnetic state without nematic transitions. This finding suggests that spin fluctuations are the primary driver of superconductivity.
Researchers at Bielefeld University have created a molecule with the largest observed spin in a single molecule, equivalent to 120 electrons. The Fe10Gd10 molecule exhibits a quantum phase transition, where ten thousand states become degenerate and exhibit giant entropy values.
Researchers predict creation of 'Weyl-Kondo semimetal,' a quantum material with unique properties, and demonstrate its existence through modeling. The discovery has significant implications for understanding high-temperature superconductivity and strongly correlated materials.
Researchers have made significant progress in understanding quantum critical points, which occur at absolute zero and are responsible for phase transitions. The new findings reveal that quantum fluctuations play a crucial role in these phenomena, even at extremely low temperatures.
Researchers precisely measured the entropy of a cerium copper gold alloy to shed light on high-temperature superconductivity and similar phenomena. The study provides new evidence about the possible causes of these phenomena near a quantum critical point, where electrons fluctuate between two different quantum states.
Researchers developed an experiment to detect quantum events in ultra-thin films, enhancing understanding of basic phenomena in nano-sized systems. The study uses a novel 'nano-trampoline' setup to measure specific heat and demonstrate the existence of quantum criticality.
Physicists have discovered that nuclear effects help bring about superconductivity in YRS, a composite material of ytterbium and rare earth elements. This finding provides further evidence that unconventional superconductivity arises from quantum criticality and exposes the role of nuclear spins in exposing electronic quantum criticality.
A new study by Rice University and international collaborators adds to the growing evidence for a theory that explains high-temperature superconductivity and heavy fermion physics through quantum fluctuations. The research observed a sharp Fermi surface reconstruction, consistent with theoretical predictions of unconventional quantum c...
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 at the University of Chicago experimentally demonstrate quantum criticality in ultracold atoms, a phenomenon that may connect the atomic realm to deep questions of cosmology. This breakthrough could lead to simulations of the early universe by studying systems in states of quantum criticality.
A new study supports a 2006 theory by Qimiao Si to explain the electrical properties of unconventional superconductors. The research provides a global phase diagram for heavy-fermion systems, helping relate the behavior of several materials.
Physicists from Rutgers University and the University of Tokyo unveil a superconducting material with unprecedented properties, reaching quantum criticality in its natural state. The discovery challenges current understanding of materials science and may lead to breakthroughs in future superconductors and computer electronics.
Physicists at Rice University report a simple scaling behavior in electronic excitations of a related material, providing direct evidence of large-scale electronic consequences of quantum critical effects. The study reveals that variables from classical physics cannot explain all observed macroscopic properties at quantum critical points.
Researchers found a direct connection between electrons' conductivity and magnetic properties in iron-based superconductors. The study sheds light on high-temperature superconductivity's fundamental nature.
Researchers discovered a pressure-driven quantum critical regime in chromium, achieving the first direct measurement of a 'naked' quantum singularity in an elemental magnet. This breakthrough paves the way for understanding magnetic quantum criticality in more complex systems.
Researchers propose a theoretical framework to explain the complex quantum behavior of iron pnictides, a class of high-temperature superconductors. The theory predicts specific changes in electron-electron interactions and phase transitions, opening up new avenues for studying quantum criticality.
Scientists have discovered a new phase transition in metal YbRh2Si2 at absolute zero, revealing additional changes to electronic properties. This study extends our understanding of phase transitions and is relevant to complex systems like high-temperature superconductors.
Researchers found telltale signs of a link between quantum effects and thermodynamic properties in YbRh2Si2, shedding light on collective organization of microscopic particles.
Physicists propose a nanoscale magnetic probe to study entanglement at a quantum critical point, potentially leading to breakthroughs in high-temperature superconductivity. The probe could provide controlled and tunable settings for studying quantum effects, including spin waves and electron tunneling.
Researchers from Rice University and international teams found a collapse of Fermi volume in quantum critical matters, leading to new insights into exotic electronic properties. This discovery may provide routes to new classes of material and shed light on high-temperature superconductivity.
Researchers have made significant progress in understanding the behavior of materials at quantum critical points, a stage where materials change phases. The new classification system has shed light on the relationship between quantum criticality and high-temperature superconductivity.