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Reading a quantum clock costs more energy than running it, study finds

A study led by the University of Oxford has identified a surprising source of entropy in quantum timekeeping—the act of measurement itself. In a study published in Physical Review Letters, scientists ...

What costs more energy — running a quantum clock or observing it?

The study shows that in quantum devices, reading a clock consumes far more energy than running it. This insight will help ...
AOL

Reading a quantum clock takes more energy than operating it

The steady tick of a clock usually feels simple and dependable. Something swings or vibrates in a controlled rhythm and marks the passing of each moment. What you rarely notice is the hidden cost ...

Reading time before clocks

Today, checking the time is effortless. A quick glance at a wristwatch, a wall clock, or even a mobile phone instantly tells ...
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Reading a quantum clock costs more energy than running it, study finds

Graphic illustrating the difference in energy between running a quantum clock (left: a single electron hopping between two nanoscale regions) and reading the ticks of the clock (right). The energy ...