Search results for mesoscopic

Quantum Physics Feb 25, 2019

Near ground-state cooling of 2-D trapped ion crystals

Researchers have been trying to cool macroscopic mechanical oscillators down to their ground state for several decades. Nonetheless, past studies have merely attained the cooling of a few selected vibrational modes of such ...

General Physics Feb 6, 2019

Theoretical model may help solve molecular mystery

Spintronics is promising for future low-power electronic devices. Spin is a quantum-mechanical property of electrons that can best be imagined as electrons spinning around their own axes, causing them to behave like small ...

General Physics Jan 16, 2019

Experiments detect entropy production in mesoscopic quantum systems

The production of entropy, which means increasing the degree of disorder in a system, is an inexorable tendency in the macroscopic world owing to the second law of thermodynamics. This makes the processes described by classical ...

Materials Science Dec 6, 2018

3-D printing eliminates undesirable trait in conventional superalloys

An undesirable trait found in traditionally processed superalloys does not exist in a 3-D-printed, nickel-based superalloy, according to a team of materials scientists who think this could lead to new manufacturing techniques ...

Quantum Physics Aug 16, 2018

Scientists create anti-laser for a condensate of ultracold atoms

An international team of scientists developed the world's first anti-laser for a nonlinear Bose-Einstein condensate of ultracold atoms. For the first time, scientists have demonstrated that it is possible to absorb the selected ...

General Physics Jun 7, 2018

When inertial frames of reference collide

In an inertial frame of reference, a body with zero net force acting on it does not accelerate. When scientists speak of inertial frames of reference, they're invoking a coordinate system with no external influences, and ...

Nanophysics May 22, 2018

Leveraging imperfections to create better-behaved quantum dots

Potentially paving the way toward advanced computers, lasers or optical devices, University of Wisconsin-Madison researchers have revealed new effects in tiny electronic devices called quantum dots.

Quantum Physics Apr 23, 2018

Physicists control transitions between different states of matter

An international group of physicists managed for the first time to experimentally observe the transition between two states of matter, propagating polariton-solitons and a Bose-Einstein condensate. Furthermore, physicists ...

Quantum Physics Apr 3, 2018

Easing uncertainty

Heisenberg's uncertainty principle, the fundamental impossibility of simultaneously measuring properties such as position and momentum, is at the heart of quantum theory. Physicists at ETH Zurich have now demonstrated an ...

Quantum Physics Apr 2, 2018

A novel test bed for non-equilibrium many-body physics

The behavior of electrons in a material is typically difficult to predict. Novel insight comes now from experiments and simulations performed by a team led by ETH physicists who have studied electronic transport properties ...

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