In physics, the Planck time, (tP), is the unit of time in the system of natural units known as Planck units. It is the time required for light to travel, in a vacuum, a distance of 1 Planck length. The unit is named after Max Planck, who was the first to propose it.
The Planck time is defined as:
where:
The two digits between parentheses denote the standard error of the estimated value.
According to quantum theory, 1 Planck time should be the sma...
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In physics, the Planck time, (tP), is the unit of time in the system of natural units known as Planck units. It is the time required for light to travel, in a vacuum, a distance of 1 Planck length. The unit is named after Max Planck, who was the first to propose it.
The Planck time is defined as:
where:
The two digits between parentheses denote the standard error of the estimated value.
According to quantum theory, 1 Planck time should be the smallest unit of time physics can reason about in a meaningful way. As of 2006, the smallest unit of time that was directly measured was on the order of 1 attosecond (10 s), or about 10 Planck times.
Analyses of Hubble Space Telescope Deep Field images in 2003 led to a debate about the physical implications of the Planck time as a physical minimum time interval. According to Lieu and Hillman, speculative theories of quantum gravity "foam" where there are space-time fluctuations on the Planck scale predict that images of extremely distant objects...
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