Articles tagged with Quantum Phase Transitions
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.
The study reveals three superconducting phases in K₂Cr₃As₃, each with distinct spin configurations and topological properties. Phase B breaks time-reversal symmetry and may host Majorana excitations, while Phase A could host Majorana states at its boundaries.
Researchers at The University of Manchester discovered that intense electronic excitation can trigger rapid structural changes in metals, driven by electronic entropy. The study found that almost all elemental metals undergo solid-to-solid phase transitions driven solely by this effect.
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 at the University of Würzburg have directly measured the 'waiting time' in a two-dimensional material, which lasts exactly 24 billionths of a second. This knowledge increases the accuracy of atomic sensors and paves the way for future medical diagnostics.
A team at the University of Vienna has cooled a levitated silica nanorotor to its quantum ground state in two rotational degrees of freedom, reaching the fundamental limit set by quantum uncertainty. This achievement is an important milestone towards rotational matter-wave interferometry and ultra-sensitive quantum torque sensing.
Researchers at Columbia University have observed a superfluid transitioning into an insulating phase, exhibiting properties of both liquid-like and solid-like behavior. The finding suggests that the low-temperature phase may be a highly unusual exciton solid, leaving room for further exploration and potential observation of supersolids.
Physicists used a quantum simulator to study the interaction of electrons in a material with a pseudogap state. They found that subtle magnetic patterns shape this mysterious phase of matter, which appears above the temperature at which it becomes superconducting.
The University of Nebraska-Lincoln has received a $2.5 million grant from the Department of Energy to investigate ferroelectric oxides and control oxide and van der Waals materials in ways previously thought impossible. The research aims to create new, energy-efficient electronic devices and platforms for smartphones.
Researchers at Pohang University of Science & Technology experimentally demonstrated the existence of nanometer-sized liquid clusters in supercritical fluids, overturning the prevailing notion of a single phase. These clusters persisted for up to an hour and have significant implications for industrial processes and natural environments.
Researchers at Rutgers University have discovered a new quantum state, called quantum liquid crystal, at the interface of two exotic materials. This finding offers characteristics that could pave the way for advanced technological applications and new quantum devices.
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.
Physicists at the University of Colorado Boulder have developed a new type of atom interferometer that can measure acceleration in three dimensions. The device, which employs six lasers and artificial intelligence, has the potential to revolutionize navigation technology by providing accurate measurements in complex environments.
Researchers discovered solitonic superfluorescence in hybrid perovskites at room temperature, enabling exotic quantum states such as superconductivity and superfluidity. The study provides a blueprint for designing materials that can function at high temperatures, a crucial step forward for quantum technology development.
Researchers have used machine learning to study the melting of layered materials, discovering a complex two-step process that contradicts prior theories. The team identified changes in topological excitations as the key to understanding the unexpected melting behavior, enabling predictions up to 12 material layers.
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 found a rare form of one-dimensional quantum magnetism in the metallic compound Ti₄MnBi₂, offering evidence into a previously theoretical phase space. The discovery bridges the gap between traditional magnetic insulators and complex electronic systems.
A new study published in Newton uses artificial intelligence to identify complex quantum phases in materials, significantly speeding up research into quantum materials. The breakthrough applies machine-learning techniques to detect clear spectral signals, allowing for a fast and accurate snapshot of phase transitions.
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.
A team of researchers observed first- and second-order dissipative phase transitions in a two-photon driven Kerr resonator, showcasing the transformative power of quantum systems. The study demonstrates the validity of theoretical predictions and opens new possibilities for engineering stable and responsive quantum systems.
Researchers from Osaka University have developed an ultrathin vanadium dioxide film on a flexible substrate, preserving its electrical properties. This breakthrough enables adaptable electronics that can adjust to temperature, pressure, or impact in real-time.
German physicist Christian Schneider has been awarded a European Research Council Consolidator Grant to study the optical properties of two-dimensional materials. His team plans to develop experimental set-ups to investigate the unique properties of these materials, which could lead to new applications in quantum technologies.
Researchers apply computational technique to understand the 'pseudogap', a long-standing puzzle in quantum physics with ties to superconductivity. The discovery helps scientists in their quest for room-temperature superconductivity, enabling lossless power transmission and faster MRI machines.
Researchers have unveiled a new class of quantum critical metal that sheds light on intricate electron interactions. The discovery could lead to the development of electronic devices with extreme sensitivity, driven by unique properties of quantum-critical systems.
Physicists have developed a method to directly measure qubit coherence loss as thermal dissipation in electrical circuits. This breakthrough allows researchers to better understand how their qubits decay and improve quantum computing technology.
A new study published in Physical Review Letters suggests that nanohertz gravitational waves may not originate from supercool first-order phase transitions. Researchers found that such transitions would struggle to complete, shifting the frequency of the waves away from nanohertz frequencies.
Researchers successfully applied atomic pair distribution function (PDF) analysis at X-ray free-electron laser facilities to study ultrafast material transitions. They discovered a new material phase, resolving years-long scientific debate and paving the way for designing novel transitioning materials with commercial applications.
Researchers observe antiferromagnetic phase transition in a large-scale quantum simulator, capturing key findings in the fermionic Hubbard model. The study highlights the advantages of quantum simulation and advances understanding of quantum magnetism.
Researchers at the University of California - Riverside have proposed a chain of quantum magnetic objects called spin centers that can simulate exotic magnetic phases of matter. This breakthrough could lead to more efficient ways of storing and transferring information, as well as the development of room temperature quantum computers.
Scientists at uOttawa have developed Fourier Quantum Process Tomography (FQPT) to validate quantum circuit performance. The technique allows for high-accuracy characterization with minimal measurements, enabling significant advancements in quantum computing.
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 at Rice University and the University of Illinois Urbana-Champaign have found that chemical reactions can scramble quantum information, similar to black holes. This discovery could lead to new methods for controlling molecular behavior and improving the reliability of quantum computers.
Researchers at Princeton University discovered a sudden change in quantum behavior while experimenting with a three-atom-thin insulator. The findings suggest the existence of unique quantum phase transitions that disobey established theories, promising to enhance our understanding of quantum physics and superconductivity.
Researchers developed a new method to estimate gradients and derivatives on quantum computers, enabling faster computations. This technique can be applied to various fields such as cryptography, optimization, and materials science.
Researchers identified a new theoretical framework for oscillating superconductivity, which could revolutionize electricity transfer. The discovery provides insight into an unconventional, high-temperature superconductive state seen in certain materials.
In certain metals, phase transitions occur gradually due to exotic laws of quantum mechanics, allowing new insights into the quantum world. Researchers at the University of Bonn and ETH Zurich have directly observed this effect, enabling a better understanding of critical slowing down in fermions.
Scientists at Northwestern University and Purdue University have discovered that quantum interference can suppress the annihilation of photoexcitations, allowing for more efficient tools like solar cells. By controlling the quantum phases of photoexcitations, researchers hope to create new devices with high-density mobilities.
Researchers have discovered a new phase of matter where a quantum liquid becomes solid when heated. The breakthrough was achieved through a collaboration between experimentalists and theoretical physicists, who developed a model that explains the formation of a quantum crystal at finite temperatures.
Researchers predict that layered electronic 2D semiconductors can host a quantum phase of matter called the supersolid. A solid becomes 'super' when its quantum properties match those of superconductors, simultaneously having two orders: solid and super. The study reports the complete phase diagram of this system at low temperatures.
Researchers developed a platform to study superconducting magnetic detection and phase transitions under high pressure using silicon vacancy defects. They successfully detected pressure-induced magnetic phase transitions in rare-earth magnets and measured the critical temperature-pressure diagram of a superconductor.
Researchers stack ultrathin monolayers of semiconductors to create a moiré lattice that traps individual electrons in tiny slots. This configuration allows for continuous tuning of electron mass and density, leading to the observation of heavy electrons and potential emergence of a 'strange' metal phase.
Scientists at RMIT University and partner organisation confirm electric control of superconductivity and giant anomalous Hall effect in the kagome metal CsV₃Sb₅. Proton intercalation modulates carrier density, allowing for tuning of Fermi surfaces and potentially realizing exotic quantum phase transitions.
Physicists have discovered a new family of quantum matter, the 'bubble phase of composite fermions,' which exhibits a crystalline pattern and allows electricity to flow along its edge. This discovery confirms the existence of a new type of highly correlated topological phase.
Scientists have detailed the atomic structure of superconducting RbV3Sb5 at 103 degrees Kelvin, revealing a unique lattice pattern and charge-density wave. This breakthrough provides a new understanding of exotic states of matter and brings researchers closer to developing higher-temperature superconductors.
A research team from USTC experimentally observed phase transitions between triply degenerate points with different topological charges through highly controllable quantum simulations. The study highlighted the important roles played by spin tensors in these transitions.
Researchers have developed a new imaging method that captures the light-induced phase transition in vanadium oxide (VO2) with high spatial and temporal resolution. The study reveals that pressure plays a larger role in these transitions than previously expected, challenging previous conclusions.
Using machine learning to study water's phase changes, researchers found strong computational evidence in support of liquid-liquid transition. This technique can be applied to real-world systems that use water, informing water's use in industrial processes and climate models.
Researchers clarify key aspects of thermal Hall effect in magnetic insulator, reaching novel conclusions and advancing understanding of topological quantum matter. The study utilizes ruthenium chloride to demonstrate the first example of a magnetic insulator exhibiting the thermal Hall effect from quantum edge modes.
Scientists at Swinburne University of Technology and FLEET collaborators observe and explain signatures of Fermi polaron interactions in atomically-thin WS2 using ultrafast spectroscopy. Repulsive forces arise from phase-space filling, while attractive forces lead to cooperatively bound exciton-exciton-electron states.
Australian researchers have engineered a quantum box for polaritons in a two-dimensional material, achieving large polariton densities and a partially 'coherent' quantum state. The novel technique allows researchers to access striking collective quantum phenomena and enable ultra-energy-efficient technologies.
Researchers at the University of Colorado Boulder have discovered a novel phenomenon in a type of quantum material that can change its electrical properties under specific conditions. The material, known as Mn3Si2Te6, exhibits colossal magnetoresistance when exposed to certain magnetic fields, allowing it to behave like a metal wire.
Researchers at Rice University have discovered a unique arrangement of atoms in iron-germanium crystals that leads to a collective dance of electrons. The phenomenon, known as a charge density wave, occurs when the material is cooled to a critically low temperature and exhibits standing waves of fluid electrons.
Topological insulators exhibit unique quantum properties, with electrons flowing freely along surface edges but not through the interior. Researchers used spiraling laser light to generate harmonics from materials, allowing them to distinguish between superhighway and insulating states. By varying laser polarization and material compos...
A team of researchers used resonant inelastic X-ray scattering to study the behavior of electron spins in iron selenide, a material that exhibits directionally-dependent electronic behavior. They found that high-energy spin excitations are dispersive and undamped, indicating a well-defined energy-versus-momentum relationship.
Researchers at NC State University discovered that built-in thermal shock absorbers in perovskites protect dipoles from thermal interference, enabling room-temperature superfluorescence. The 'Quantum Analog of Vibration Isolation' mechanism creates a filter that allows synchronized emission of photons.
By shaking an optical lattice potential, researchers realized a discontinuous phase transition in a strongly correlated quantum gas, opening the door to quantum simulations of false vacuum decay in the early universe. This work provides a flexible platform for exploring the role of quantum fluctuations in first-order phase transitions.
Scientists from TUM and Google Quantum AI used a highly controllable quantum processor to simulate exotic particles called anyons, which can emerge as collective excitations in two-dimensional systems. The study reveals the properties of these particles through braiding statistics, a key feature of topologically ordered states.
The research team simulated the occurrence of superradiant phase transition (SPT) beyond the no-go theorem by introducing anti-squeezing effects. They achieved this through a nuclear magnetic resonance quantum simulator, demonstrating that SPT can occur even with the A2 term present.
A new analytical technique combines quantum physics and molecular biology to track biomolecule changes in less than a trillionth of a second. By analyzing the collective movement of atoms, researchers were able to reduce 6000 dimensions to four and characterize conical intersections of quantum states in complex molecules.
Researchers have identified a quantum phase transition in ferropericlase, a mineral abundant in the lower mantle. The study, published in Nature Communications, confirms earlier predictions and suggests this phenomenon may increase tectonic events like earthquakes and volcanic eruptions.