Search results for author:(Stuart Mason Dambrot)

Quantum Physics Jun 14, 2013

A physicist's best friend: Quantum coherence in diamond augments fluorescence thermometry

(Phys.org) —Thermometry – the measurement of temperature – is critical to a wide range of applications, including many industrial processes, biomedical monitoring, and environmental regulatory systems. However, measuring ...

Quantum Physics Jun 4, 2013

May the force be with us? Precise measurements test quantum electrodynamics, constrain possible fifth fundamental force

(Phys.org) —Quantum electrodynamics (QED) – the relativistic quantum field theory of electrodynamics – describes how light and matter interact – achieves full agreement between quantum mechanics and special relativity. (QED ...

Quantum Physics May 28, 2013

Uncertainty revisited: Novel tradeoffs in quantum measurement

(Phys.org) —There is, so to speak, uncertainty about uncertainty – that is, over the interpretation of how Heisenberg's uncertainty principle describes the extent of disturbance to one observable when measuring another. More ...

General Physics May 27, 2013

Of grains and graphite: Simulating interstellar hydrogen formation

(Phys.org) —The process of molecular hydrogen formation is a key factor in astrophysics – specifically in the physics and chemistry of interstellar clouds. An electrically neutral atom containing a single positively charged ...

Biochemistry Apr 30, 2013

Antibiotics 2.0: The atomic structure and mechanism of mammalian host-defense peptides

(Phys.org) —While the natural world is replete with compounds that form the basis of many disease-fighting pharmaceuticals, it is also the case that humans and other mammals produce their own host-defense peptide-derived ...

Quantum Physics Apr 29, 2013

Gravity's lingua franca: Unifying general relativity and quantum theory through spectral geometry

(Phys.org) —Mathematics is, in essence, an artificial language for precisely articulating theories about the physical world. Unlike natural language, however, translating different classes of mathematics can be difficult ...

Social Sciences Apr 26, 2013

The enemy of my friend: Altruistic punishment in humans called into question

(Phys.org) —That Homo sapiens exhibits both cooperative and competitive behavior is a topic that continues to be the subject of ongoing discussion. In terms of cooperation, altruism (a selfless type of prosocial behavior ...

Evolution Mar 18, 2013

Please Don't Eat the Daisies: The macroevolution of alternate plant defense strategies

(Phys.org) —As is the case in all areas of science, our understanding of evolutionary biology is… well, evolving. Two such areas are macroevolution (any evolutionary change at or above the level of species – that is, on a ...

General Physics Mar 8, 2013

Ex nihilo: Dynamical Casimir effect in metamaterial converts vacuum fluctuations into real photons

(Phys.org) —In the strange world of quantum mechanics, the vacuum state (sometimes referred to as the quantum vacuum, simply as the vacuum) is a quantum system's lowest possible energy state. While not containing physical ...

General Physics Mar 7, 2013

Through a sensor, clearly: Complex systems made observable

(Phys.org) —A complex system can, in principle, be observable – that is, the system's complete internal state can be reconstructed from its outputs, which would ostensibly involve describing in complete quantitative detail ...

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