Articles tagged with Many Body Physics
Researchers discovered a maximum amount of electrical resistance that can occur due to electron collisions, offering insights into what causes resistivity at the microscopic level. The study found that when interactions between atoms become too strong, the resistivity caused by collisions eventually stops rising and saturates.
A research team has observed chiral switching between collective steady states in a dissipative Rydberg gas, controlled by the direction of parameter change. The phenomenon is underpinned by a unique Liouvillian exceptional structure inherent to non-Hermitian physics, allowing for efficient control over the system's dynamics.
The 56th Annual Meeting of the American Physical Society's Division of Atomic, Molecular and Optical Physics will present new research on quantum computing, lasers, and Bose-Einstein condensates. Over 1,200 physicists from around the world will convene in Portland, Oregon, June 16-20.
Researchers have created a new type of optically connected qubits, a critical advance in developing quantum networks. By storing information in a collective state of nuclear spins, they achieved high fidelity and coherence times, paving the way for practical applications.
Researchers uncover a new type of universality in non-equilibrium dynamics, describing the spin depolarization dynamics with two parameters. This study enables the simulation of complex systems using quantum information technology.
Researchers from the University of Cambridge have created a 2D version of the Bose glass, a novel phase of matter that challenges traditional statistical mechanics. The new phase exhibits non-ergodic behavior, meaning it retains its details, and has potential applications in quantum computing.
A research team led by Professor Monika Aidelsburger and Professor Immanuel Bloch found indications that chaotic many-body systems in the quantum realm can be described using fluctuating hydrodynamics. This approach simplifies the macroscopic description of such systems, obviating the need to engage with microscopic interactions.
Researchers from NUS successfully simulated higher-order topological lattices with unprecedented accuracy, unlocking new potential in quantum computers. The study enables the exploration of high-dimensional topological materials and their unique properties.
Scientists at European XFEL have developed a new method to study warm dense matter, allowing for unprecedented insights into its structure and properties. This breakthrough enables the investigation of plasmons in ambient aluminum with ultra-high-resolution X-ray Thomson scattering.
Scientists have discovered unique periodic structures in manganese germanide that behave like magnetic monopoles and antimonopoles. The researchers studied the collective excitation modes of these structures, revealing a way to experimentally determine their spatial configuration.
Researchers demonstrate novel method of boson sampling using ultracold atoms in a two-dimensional optical lattice, overcoming previous limitations in simulations and photon-based experiments. The achievement showcases the potential of quantum devices for performing non-classical computational tasks.
ICFO researchers observed a light-induced increase and control of conductivity in graphite by manipulating its many-body state, showing signatures of superconductivity. The study uses attosecond soft-X-ray pulses to probe electronic dynamics, providing new insights into material properties and quantum states.
Physicists have directly observed the Kondo effect in a single artificial atom using a scanning tunnelling microscope. The team confirmed a decades-old prediction by validating their experimental data against theoretical models. This breakthrough paves the way for investigating exotic phenomena in magnetic wires.
New experiments with ultra-cold atomic gases show that quantum systems composed of many particles change over time following a sudden energy influx. The findings reveal a universality in the behavior of these systems, shedding light on how they evolve and interact.
The team isolated pairs of atoms within a 3D optical lattice to measure the strength of their mutual interaction. They confirmed a longstanding prediction that the p-wave force between particles reached its maximum theoretical limit.
Researchers have successfully demonstrated large numbers of interacting qubits maintaining coherence for an unprecedentedly long time, in a programmable solid state superconducting processor. This breakthrough could accelerate computing processes and enable applications such as quantum sensing and metrology.
Researchers from HKU and Harvard University have developed a new triangular lattice model and sweeping cluster algorithm to simulate Rydberg arrays. Their simulations reveal highly entangled Z2 quantum spin liquids with large parameter regimes, providing valuable insights for future experiments.
Physicists at Rice University have created a quantum simulator that reveals the behavior of electrons in one-dimensional wires, shedding light on spin-charge separation. The study's findings have implications for quantum computing and electronics with atom-scale wires.
The study uses many-body perturbation theory to predict the optical properties of negatively charged boron vacancies in hBN, showing that phonons are largely responsible for luminescence. The results suggest that this defect can be used as a nanoscale thermometer with high temperature sensitivity.
Researchers proved a conjecture on quantum complexity growth, contradicting the Brown-Susskind intuition that complexity increases linearly for astronomically long times and then remains maximum. Instead, complexity grows linearly with time until it saturates at an exponential point related to system size.
A team at Heidelberg University has successfully demonstrated a programmable control of spin interactions in isolated quantum systems. By adopting methods from nuclear magnetic resonance, the researchers used microwave pulses to modify the atomic spin and stall its reorientation. This breakthrough opens up new possibilities for Quantum...
A joint research team has solved the puzzle of non-Fermi liquid behaviour in interacting electrons systems through quantum many-body computation and analytical calculations. The findings provide a protocol for establishing new paradigms in quantum metals, with potential applications in solving the energy crisis.
Physicists at Heidelberg University have developed a new method to identify effective theories in many-body systems using quantum simulators. The approach allows for the efficient description of complex systems and has been demonstrated experimentally with ultracold rubidium atoms.
A team of researchers has found a way to derive quantum field theoretical descriptions for many-particle systems directly from experimental measurements. This breakthrough could simplify the study of complex quantum systems and provide new insights into fundamental questions in physics.
Physicists at ETH Zurich create unifying platform to explore 'time crystals' in both classical and quantum regimes. They discover emergent dynamics at subharmonic frequencies in weakly-coupled modes, similar to those seen in quantum many-body systems.
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 have shown that digital quantum simulations can be more robust and stable than previously assumed. By considering only relevant system values, a sharp threshold is reached where the Trotter error has limited impact, allowing for longer simulations of larger systems.
The researchers observed an unusual quantum Hall effect in bulk graphite, which is typically only possible in two-dimensional systems. The material behaves differently depending on whether it contains odd or even number of graphene layers, with surprising results persisting for hundreds of layers thick.
Using Nobel Prize-winning methods, researchers developed a mathematical approach to predict human behavior in crowds, predicting distribution and mood based on density fluctuations. The approach could be applied to analyze population flows and provide early warnings for extreme crowding.
Researchers have experimentally observed a new quantum many body state in the Shastry-Sutherland model, where atomic magnets are quantum-entangled in sets of four. This discovery has implications for materials science and quantum information technology, and could lead to the development of new theoretical methods.
Quantum liquids exhibit unique properties in the non-equilibrium regime, contrary to Landau Fermi-liquid theory's predictions. The discovery opens up new avenues for exploring quantum many-body physics through fluctuations.
Researchers used neutron scattering to observe zero-sound oscillations in a fermion liquid, which could be a mechanism for high-temperature superconductivity. The discovery reveals new density waves with atomic wavelength in the helium fluid, differing from previous findings in bulk liquids.