Quantum fluids and solids are many-body physical systems in which quantum mechanical effects, such as wavefunction coherence, zero-point motion, and quantization of circulation, dominate macroscopic behavior. Quantum fluids include systems like superfluid helium and ultracold atomic Bose–Einstein condensates, characterized by frictionless flow, quantized vortices, and collective excitations described by Bogoliubov theory or hydrodynamic formalisms. Quantum solids, such as solid helium, exhibit significant zero-point motion, tunneling, and in some regimes potential supersolid behavior with simultaneous crystalline order and superfluid-like response. These systems serve as platforms for studying strongly correlated quantum phases, emergent quasiparticles, and quantum phase transitions under controlled thermodynamic conditions.
A collaboration between Stuart Parkin's group at the Max Planck Institute of Microstructure Physics in Halle (Saale) and Claudia Felser's group at the Max Planck Institute for Chemical Physics of Solids in Dresden has realized ...
Condensed Matter
Jan 12, 2026
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Physics is often about recognizing patterns, sometimes repeated across vastly different scales. For instance, moons orbit planets in the same way planets orbit stars, which in turn orbit the center of a galaxy.
Soft Matter
Nov 19, 2025
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Electricity powers our lives, including our cars, phones, computers, and more, through the movement of electrons within a circuit. While we can't see these electrons, electric currents moving through a conductor flow like ...
Condensed Matter
Nov 6, 2025
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A supersolid is a paradoxical state of matter—it is rigid like a crystal but flows without friction like a superfluid. This exotic form of quantum matter has only recently been realized in dipolar quantum gases.
General Physics
Oct 23, 2025
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Researchers from EeroQ, the quantum computing company pioneering electron-on-helium technology, have published a paper, titled "Sensing and Control of Single Trapped Electrons Above 1 Kelvin," in Physical Review X that details ...
Quantum Physics
Oct 9, 2025
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Bloch oscillations are periodic oscillations of quantum particles in a repeating energy "landscape" (e.g., a crystal lattice) that are subjected to a constant force. These particle motions have been the focus of numerous ...
Oxygen, the colorless and odorless gas that is essential to the survival of humans and other living organisms, is estimated to make up around 21% of Earth's atmosphere. While the primary properties of oxygen are now well ...
For several decades, a central puzzle in quantum physics has remained unsolved: Could electrons behave like a perfect, frictionless fluid with electrical properties described by a universal quantum number?
Nanophysics
Sep 1, 2025
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254
In everyday life, all matter exists as either a gas, liquid, or solid. In quantum mechanics, however, it is possible for two distinct states to exist simultaneously. An ultracold quantum system, for instance, can exhibit ...
Soft Matter
Aug 28, 2025
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201
Van Gogh's "The Starry Night" has stirred the souls of art lovers for over a century. Now, its swirling skies may also speak to physicists, as it echoes the patterns of quantum turbulence.
Quantum Physics
Aug 8, 2025
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