Tag Archives: collisions

UCLA physicists discover ‘apparent departure from the laws of thermodynamics’

Ions subjected to buffer gas cooling never truly reach the same temperature as the surrounding gas

According to the basic laws of thermodynamics, if you leave a warm apple pie in a winter window eventually the pie would cool down to the same temperature as the surrounding air. (more…)

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A new way to make laser-like beams using 250x less power

ANN ARBOR — With precarious particles called polaritons that straddle the worlds of light and matter, University of Michigan researchers have demonstrated a new, practical and potentially more efficient way to make a coherent laser-like beam.

They have made what’s believed to be the first polariton laser that is fueled by electrical current as opposed to light, and also works at room temperature, rather than way below zero. (more…)

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