Search results for author:(Stuart Mason Dambrot)

Nanophysics Aug 10, 2016

Picoscale precision though ultrathin film piezoelectricity

Piezoelectricity (aka the piezoelectric effect) occurs within certain materials – crystals (notably quartz), some ceramics, bone, DNA, and a number of proteins – when the application of mechanical stress or vibration ...

Quantum Physics Jun 14, 2016

Quantum 1, classical 0: Bell nonlocality universally confirmed in any large communication complexity advantage

(Phys.org)—The relationship between communication complexity problems, Bell nonlocal correlations and the advantage of quantum over classical strategies has long been recognized, but has been confirmed in only two problems. ...

Optics & Photonics Jun 07, 2016

The path to perfection: Quantum dots in electrically-controlled cavities yield bright, nearly identical photons

Optical quantum technologies are based on the interactions of atoms and photons at the single-particle level, and so require sources of single photons that are highly indistinguishable – that is, as identical as possible. ...

General Physics May 26, 2016

Scanning for skyrmions: Scientists directly image skyrmion cluster state transitions in iron-germanium nanodisks

Magnetic skyrmions, or noncoplanar swirling spin textures, are particle-like spin configurations with an integer topological charge that promise faster, denser memory storage. The hurdle to overcome in creating such devices ...

Superconductivity Mar 30, 2016

Cool under pressure: Superconductivity in 3D Dirac semimetal zirconium pentatelluride

(Phys.org)—Due to their electronic and magnetic properties and their association with crystalline and electronic structures under extreme conditions, three-dimensional (3D) Dirac semimetals – that is, materials that possess ...

Materials Science Feb 29, 2016

The cold, hard facts: Scientists redefine the chemical history of interstellar water in the early solar system

For the past 30 years, the significance of the anomalously low ortho-to-para ratios (OPRs) of gaseous water (H2O) in interstellar space has remained unknown. (In ortho hydrogen molecules, both nuclei spin in the same direction, ...

Nanomaterials Feb 26, 2016

Tiny filters, big news: Novel process uses graphene and boron nitride monolayers to separate hydrogen ion isotopes

(Phys.org)—Conventional membranes used for sieving atomic and molecular species cannot scale to the subatomic level, making them unable to separate hydrogen isotope ions (protons, deuterons and tritons). At the same time, ...

General Physics Feb 10, 2016

Materials by design: A radical shift in transforming bulk matter into useful technology

(Phys.org)—Statistical physics – the branch of physics that solves physical problem by using methods of probability theory and statistics (specifically, mathematical tools for large populations, approximations, and other ...

General Physics Aug 25, 2015

Magnon, meet phonon: Magnetoelastic waves can drive magnetic bubbles through photoexcitation

(Phys.org)—Research in spintronics (short for spin transport electronics – the study of the electron's intrinsic spin and associated magnetic moment in solid-state devices) continues to be focused on methods for exercising ...

General Physics Jul 16, 2015

Death by Design? Spatial models show that natural selection favors genetically-limited lifespan as a lineal benefit

(Phys.org)—Standard evolutionary theories of aging and mortality, being based on mean-field assumptions – which analyze the behavior of large and complex stochastic models by studying a simpler model – conclude that ...

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