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High-precision laser system enables record flux of quantum gas mixtures

Researchers have successfully generated atomic quantum gas mixtures with unprecedented particle flux using a highly sophisticated and compact optical system. The miniaturized laser system developed by Mainz physicists enables precise control of atoms under microgravity conditions, opening doors for future space missions.

SourceJohannes Gutenberg Universitaet Mainz·JournalNature Communications·TypeExperimental study·DateAug 5, 2026
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Ultracold atoms climbing a quantum staircase

Scientists have successfully observed Shapiro steps in ultracold atoms, a quantum effect where atoms cross an extremely thin barrier without energy loss. The study provides unprecedented control over the atoms, allowing for direct probing of microscopic mechanisms and understanding how quantum behavior gives rise to macroscopic phenomena.

SourceCNR-INO·JournalScience·TypeExperimental study·DateDec 23, 2025

Journey to the Center of a Quantized vortex

Researchers use ultracold atomic gases to precisely control vortices in a strongly interacting fermionic superfluid, uncovering the fundamental mechanisms that govern their behavior. The study reveals the role of quasiparticles trapped within vortex cores and opens new perspectives for understanding vortex dynamics in superfluids and s...

SourceCNR-INO·JournalNature Communications·TypeExperimental study·DateDec 23, 2025

A quantum gas that refuses to heat

Researchers observe 'many-body dynamical localization' where a quantum system resists thermalization despite continuous driving. The phenomenon is crucial for building better quantum devices and simulators.

SourceUniversity of Innsbruck·JournalScience·TypeExperimental study·DateAug 14, 2025
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Gold clusters show promise as scalable options for quantum computers, sensors

Researchers at Penn State have demonstrated how gold nanoclusters can mimic the spin properties of trapped atomic ions, allowing for scalability in quantum applications. The clusters can be easily synthesized in large quantities and exhibit unique Rydberg-like spin-polarized states that mimic superpositions.

SourcePenn State·JournalACS Central Science·TypeImaging analysis·DateJul 22, 2025

Quantum vortices confirm superfluidity in supersolid

A team of physicists has observed mini-tornadoes in a supersolid quantum gas, confirming the existence of quantized vortices as a hallmark of superfluidity. The discovery is significant for understanding the behavior of supersolids and their potential applications in fields like condensed matter physics.

SourceUniversity of Innsbruck·JournalNature·TypeExperimental study·DateNov 6, 2024
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Unlocking neutron star rotation anomalies: Insights from quantum simulation

Scientists have successfully simulated neutron star glitches using ultracold supersolids, revealing a link between quantum mechanics and astrophysics. The study sheds light on the internal structure and dynamics of neutron stars, providing valuable insights into extreme conditions.

SourceUniversity of Innsbruck·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateDec 5, 2023

Interacting polarons

Scientists generate multiple quasiparticles simultaneously in a quantum gas and observe their complex interactions, including attractive and repulsive behavior. Quantum statistics plays a crucial role in these interactions, which are essential for understanding fundamental mechanisms of nature.

SourceUniversity of Innsbruck·JournalNature Physics·TypeExperimental study·DateOct 26, 2023

Quantum vortices of strongly interacting photons

Researchers at Weizmann Institute of Science have discovered quantum vortices in strongly interacting photons. These vortices exhibit unique properties that can be used to study the behavior of photons and their interactions with matter.

SourceWeizmann Institute of Science·JournalScience·DateJul 13, 2023

Quantum matter breakthrough: Tuning density waves

Researchers have made a quantum matter breakthrough by tuning density waves in a unitary Fermi gas, creating a new type of matter with extreme interactions. This discovery could lead to a better understanding of complex materials and potentially improve the development of quantum-based technologies.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature·DateMay 24, 2023
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Uncovering universal physics in the dynamics of a quantum system

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.

SourcePenn State·JournalNature·TypeExperimental study·DateMay 17, 2023

Quantum liquid becomes solid when heated

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.

SourceUniversity of Innsbruck·JournalNature Communications·TypeExperimental study·DateApr 18, 2023

Breakthrough in the understanding of quantum turbulence

Researchers at Lancaster University have discovered how energy disappears in quantum turbulence, a crucial step towards mastering this phenomenon and its applications. The study reveals the role of Kelvin waves in transferring energy from macroscopic to microscopic length scales.

SourceLancaster University·JournalNature Physics·TypeExperimental study·DateMar 16, 2023
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Testing universality of Feynman-Tan relation in interacting Bose gases using high-order Bragg spectra

The study demonstrates the universality of the Feynman-Tan relation for describing elementary excitation spectra of strongly interacting Bose gases, including those with large mass imbalances. High-order Bragg spectra are used to measure the resonance frequency shift in moderate interaction regions.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateMar 1, 2023

Magnetic matchmaking under the microscope

A team of researchers observed magnetically mediated hole pairing in a synthetic crystal, confirming theories that magnetic fluctuations give rise to pairing. The experiments suggest significant mobility of bound hole pairs, which could be efficient carriers of currents.

SourceETH Zurich Department of Physics·JournalNature·TypeExperimental study·DateJan 20, 2023

Ultra-cold mini twisters

Scientists at the University of Innsbruck have developed a new method to observe and study ultra-cold mini twisters, quantized vortices that form in dipolar quantum gases. These vortices are a strong indication of superfluidity, a frictionless flow characteristic of certain quantum gases.

SourceUniversity of Innsbruck·JournalNature Physics·TypeExperimental study·DateOct 31, 2022

A drop in the sea of electrons

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.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalNature Communications·TypeExperimental study·DateOct 19, 2022

A quantum pump without the crank

Researchers demonstrate the creation of a self-oscillating pump in a topological dissipative atom-cavity system, transporting atoms without external periodic driving. This discovery combines quantum many-body physics and open quantum systems, offering insights into exotic states of matter.

SourceETH Zurich Department of Physics·JournalNature·TypeExperimental study·DateAug 22, 2022
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Rice lab’s quantum simulator delivers new insight

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.

SourceRice University·JournalScience·TypeExperimental study·DateJun 16, 2022

Quantum systems and the flight of the bee

A team of scientists used a quantum simulator to study the behavior of a complex quantum system, finding that it exhibits characteristics similar to fluid dynamics. The research also showed that this phenomenon can be observed in the flights of bees, as well as in unusual stock market movements.

SourceUniversity of Innsbruck·JournalScience·TypeExperimental study·DateMay 12, 2022

The quest for an ideal quantum bit

A team of scientists at Argonne National Laboratory has developed a new qubit platform formed by freezing neon gas into a solid and trapping an electron there. The platform shows great promise in achieving ideal building blocks for future quantum computers, with promising coherence times competitive with state-of-the-art qubits.

SourceDOE/Argonne National Laboratory·JournalNature·DateMay 4, 2022

Physicists create extremely compressible "gas of light"

Researchers at the University of Bonn have created a gas of light particles that can be extremely compressed under certain conditions. This effect is due to the 'fuzziness' of light particles, which allows them to overlap and form a quantum degenerate gas.

SourceUniversity of Bonn·JournalScience·TypeExperimental study·DateMar 24, 2022
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Physicists watch as ultracold atoms form a crystal of quantum tornadoes

Researchers at MIT have directly observed the interplay of interactions and quantum mechanics in a rotating fluid of ultracold atoms. The team created a spinning cloud of sodium atoms, which formed a needle-like structure before breaking into a crystalline pattern resembling miniature quantum tornadoes.

SourceMassachusetts Institute of Technology·JournalNature·DateJan 5, 2022

Energizer atoms: JILA researchers find new way to keep atoms excited

Researchers at JILA have developed a technique to extend the excited-state lifetime of atoms in a Fermi sea, allowing for improved quantum communication networks and atomic clocks. By manipulating the Pauli exclusion principle, they achieved a significant delay in spontaneous decay.

SourceNational Institute of Standards and Technology (NIST)·JournalScience·TypeExperimental study·DateNov 18, 2021

How monitoring quantum Otto engine affects its performance

A new monitoring protocol preserves coherence in quantum Otto engines, leading to improved power output and reliability. The 'repeated contacts scheme' avoids measurement-induced quantum effects, making the engine more capable and dependable.

SourceInstitute for Basic Science·JournalPRX Quantum·TypeExperimental study·DateNov 9, 2021

Switching on a superfluid

A new Australian study examines systems transitioning from a normal fluid to a quantum state known as a superfluid, which can flow with zero friction. The research provides new insights into the formation of these remarkable states, revealing different timescales and correlations involved.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalPhysical Review Letters·TypeExperimental study·DateSep 22, 2021
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Supersolid in a new dimension

Researchers at the University of Innsbruck have successfully generated a two-dimensional supersolid quantum gas, a phenomenon previously observed only in one dimension. This breakthrough enables the study of vortices forming in the hole between droplets, furthering our understanding of superfluidity and its properties.

SourceUniversity of Innsbruck·JournalNature·TypeExperimental study·DateAug 18, 2021

Physicist Jean Dalibard awarded the 2021 CNRS gold medal

Physicist Jean Dalibard is recognized for his exceptional contributions to the dynamism and influence of French research, particularly in quantum technologies. He has made major contributions to the emergence of quantum technologies by developing sources for atoms cooled and trapped by light,.

SourceCNRS·DateJun 24, 2021

New state of matter in one-dimensional quantum gas

Researchers at Stanford University have developed a quantum Archimedes' screw that hails fragile gas atoms to higher energy states without collapsing. The discovery reveals the existence of scar states, rare trajectories in chaotic quantum systems offering protected refuge for information encoded in quantum systems.

SourceStanford University·JournalScience·DateJan 14, 2021

New JILA tools 'turn on' quantum gases of ultracold molecules

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.

SourceNational Institute of Standards and Technology (NIST)·JournalNature·DateDec 9, 2020
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Temperature evolution of impurities in a quantum gas

Researchers have made a groundbreaking discovery about the role of heat in quantum impurity studies, extending our understanding of thermodynamics. The study reveals that two distinct experimental protocols probe the same information, providing new insights into quantum correlations.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalPhysical Review Letters·DateOct 13, 2020

A quantum thermometer for measuring ultra-cold temperatures

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.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalPhysical Review Letters·DateSep 16, 2020

A quantum of solid

Scientists have isolated and cooled a nanoparticle in a solid, achieving macroscopic quantum control for the first time. By removing thermal energy and isolating the particle from its environment, researchers successfully cooled the glass bead to ultra-cold temperatures near absolute zero.

SourceUniversity of Vienna·JournalScience·DateJan 30, 2020

Researchers watch quantum knots untie

Researchers at Aalto University have studied the dynamics of quantum knots, finding that they untie themselves within a short period before forming a vortex. This discovery opens up new avenues for experimental research and suggests that quantum knots may be more unstable than previously thought.

SourceAalto University·JournalPhysical Review Letters·DateOct 21, 2019

Quantum gas turns supersolid

Researchers have observed hallmarks of supersolidity in ultracold atomic gases, featuring a self-determined crystalline structure while sharing the same macroscopic wavefunction. The dysprosium quantum gas realization shows unprecedented stability, paving the way for probing its excitation spectrum and superfluid behavior.

SourceUniversity of Innsbruck·JournalPhysical Review X·DateApr 23, 2019
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JILA researchers make coldest quantum gas of molecules

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.

SourceNational Institute of Standards and Technology (NIST)·JournalScience·DateFeb 21, 2019

Breaching the horizons: Universal spreading laws confirmed

Researchers at IBS confirmed wave spreading mechanisms in a cloud of quantum particles, extending computational horizons from one day to 60 years. They used novel toolbox and Discrete Time Quantum Walks for fast simulations, revealing subdiffusive cloud spreading up to record timescales.

SourceInstitute for Basic Science·JournalPhysical Review Letters·DateFeb 1, 2019

Understanding insulators with conducting edges

Scientists have discovered a way to create artificial edge states in topological insulators using ultracold quantum gases in optical lattices. This breakthrough could lead to increased stability and energy efficiency in mobile devices, as well as the development of more efficient lasers.

SourceGoethe University Frankfurt·JournalPhysical Review Letters·DateJan 17, 2019

Quantum science turns social

Researchers developed a remote gaming interface that allowed external experts and citizen scientists to optimize a quantum gas experiment in real-time. The team found that collective search behavior of humans balances innovative attempts and refines existing solutions, making human problem-solving unique.

SourceAarhus University·JournalProceedings of the National Academy of Sciences·DateNov 14, 2018

Quantum anomaly -- breaking a classical symmetry with ultracold atoms

A study of ultracold atomic gases reveals the breaking of classical symmetries, leading to new phenomena and insights into dissipationless transport. The findings have significant implications for the development of future low-energy electronics.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalPhysical Review Letters·DateSep 18, 2018
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Mastering metastable matter

Researchers created metastable states in an artificial quantum many-body system, observing the switching dynamics between two states. They found that thousands of atoms move through quantum tunnelling during the process.

SourceETH Zurich Department of Physics·JournalProceedings of the National Academy of Sciences·DateMar 9, 2018

Roton quasiparticles observed in quantum gas

Researchers at the University of Innsbruck have successfully detected roton excitations in a dipolar quantum gas for the first time. The discovery paves the way for further research into superfluidity and supersolid states, which exhibit both solid-like and fluid-like properties.

SourceUniversity of Innsbruck·JournalNature Physics·DateMar 5, 2018

JILA's 3-D quantum gas atomic clock offers new dimensions in measurement

JILA physicists have created an entirely new design for an atomic clock, packing strontium atoms into a tiny 3-D cube at 1,000 times the density of previous clocks. This approach enables a globally interacting collection of atoms to constrain collisions and improve measurements, leading to higher precision.

SourceNational Institute of Standards and Technology (NIST)·JournalScience·DateOct 5, 2017

Breaking Newton's Law

A quantum particle oscillates back and forth when interacting with a gas of Cesium atoms at extremely low temperatures. This behavior challenges Newton's laws of motion, as the particle's motion is restricted to the direction of the tubes.

SourceUniversity of Innsbruck·JournalScience·DateJun 1, 2017
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Observing the birth of quasiparticles in real time

Scientists at the University of Innsbruck have successfully observed quasiparticles forming in real-time using ultracold quantum gases. This achievement provides new insights into the dynamics of these particles, which are crucial for understanding various physical phenomena in solid-state materials and exotic states of matter.

SourceUniversity of Innsbruck·JournalScience·DateOct 6, 2016

New method helps stabilize materials with elusive magnetism

Researchers introduce two approaches to stabilize itinerant ferromagnetic state in quantum gases, allowing for experimental detection and study of this elusive physical state. By imposing moderate optical lattices or studying cloud evolution, the methods reduce three-body recombination rates, enabling longer-lived ferromagnetic domains.

SourceSpringer·JournalThe European Physical Journal B·DateAug 10, 2016

MAINZ Graduate School of Excellence awards Visiting Professorships 2015

The MAINZ Graduate School of Excellence has awarded Visiting Professorships to Dieter Jaksch, a renowned theoretical physicist, and Thierry Valet, a leading industry-based physicist in spintronics. The recipients will spend up to twelve months at the graduate school, sharing their expertise with doctoral candidates.

SourceJohannes Gutenberg Universitaet Mainz·DateOct 15, 2015

World's quietest gas lets physicists hear faint quantum effects

Researchers at UC Berkeley cooled a gas to record-low entropy and temperature, allowing them to model high-temperature superconductors. This achievement could lead to the discovery of new materials with superconducting properties without requiring cooling.

SourceUniversity of California - Berkeley·JournalNature Physics·DateAug 4, 2015
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New insights into the world of quantum materials

Researchers have discovered a deformation of the Fermi surface in ultracold quantum gases due to anisotropic particle interactions. This deformation leads to an ellipsoidal shape, which is not spherical as predicted for isotropic interactions.

SourceUniversity of Innsbruck·JournalScience·DateSep 18, 2014

Quantum trimer -- from a distance

Researchers confirm existence of Efimov state, a bound state of three particles, at vast distances between particles. The state was previously elusive to prove experimentally.

SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateMay 13, 2014

Beyond quantum simulation: JILA physicists create 'crystal' of spin-swapping ultracold molecules

Researchers created a crystal-like arrangement of ultracold gas molecules that can swap quantum spin properties, potentially simulating or inventing exotic materials. The novel structure was achieved by manipulating the molecules' spins with microwave pulses, creating a 'superposition' of two opposite spins.

SourceNational Institute of Standards and Technology (NIST)·JournalNature·DateSep 18, 2013

Observation of second sound in a quantum gas

In a groundbreaking experiment, scientists detected the second sound wave in an ultracold quantum gas, validating a fundamental theory of superfluidity developed by Lev Landau. The observation was made possible by controlling and manipulating individual atoms using lasers.

SourceUniversity of Innsbruck·JournalNature·DateMay 15, 2013
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Elusive quasiparticles realized

Researchers have successfully realized and analyzed repulsive polarons, a new type of quasiparticle with modified properties. By controlling particle interactions, they found that these quasiparticles can exist for an almost ten times longer lifetime than previously thought.

SourceUniversity of Innsbruck·JournalNature·DateMay 23, 2012

An icy gaze into the Big Bang

Researchers at the University of Innsbruck have successfully produced controlled strong interactions between two fermionic elements, exhibiting analogies to the Big Bang's primordial substance. The experiment opens new avenues for investigating cosmic phenomena and novel states of matter in solid-state physics.

SourceUniversity of Innsbruck·JournalPhysical Review Letters·DateMar 18, 2011

Quantum gas in free fall

Scientists from the Max Planck Institute and University of Hanover generate a Bose-Einstein condensate in zero gravity, extending measurement time by over tenfold. The experiment uses an atom chip to study the effects of gravitational fields on quantum gases.

SourceMax-Planck-Gesellschaft·JournalScience·DateJun 22, 2010