Tachyon - Video Learning - WizScience.com
Δημοσιεύτηκε στις 29 Σεπ 2015
A
"tachyon" or "tachyonic particle" is a hypothetical particle that
always moves faster than light. The word comes from the pronounced
"tachy ", meaning rapid. It was coined in 1967 by Gerald Feinberg. The
complementary particle types are called luxon and bradyon , which
both exist. The possibility of particles moving faster than light was
first proposed by O. M. P. Bilaniuk, V. K. Deshpande, and E. C. G.
Sudarshan in 1962, although the term they used for it was
"meta-particle".
Most physicists think that faster-than-light
particles cannot exist because they are not consistent with the known
laws of physics. If such particles did exist, they could be used to
build a tachyonic antitelephone and send signals faster than light,
which would lead to violations of causality. Potentially consistent
theories that allow faster-than-light particles include those that break
Lorentz invariance, the symmetry underlying special relativity, so that
the speed of light is not a barrier.
In the 1967 paper that
coined the term, Feinberg proposed that tachyonic particles could be
quanta of a quantum field with negative squared mass. However, it was
soon realized that excitations of such imaginary mass fields do "not" in
fact propagate faster than light, and instead represent an instability
known as tachyon condensation. Nevertheless, negative squared mass
fields are commonly referred to as "tachyons", and in fact have come to
play an important role in modern physics.
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Disclaimer:
This video is for your information only. The author or publisher does
not guarantee the accuracy of the content presented in this video. USE
AT YOUR OWN RISK.
Background Music:
"The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library.
This video uses material/images from https://en.wikipedia.org/wiki/Tachyon, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/b... . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/b... . To reuse/adapt the content in your own work, you must comply with the license terms.
"tachyon" or "tachyonic particle" is a hypothetical particle that
always moves faster than light. The word comes from the pronounced
"tachy ", meaning rapid. It was coined in 1967 by Gerald Feinberg. The
complementary particle types are called luxon and bradyon , which
both exist. The possibility of particles moving faster than light was
first proposed by O. M. P. Bilaniuk, V. K. Deshpande, and E. C. G.
Sudarshan in 1962, although the term they used for it was
"meta-particle".
Most physicists think that faster-than-light
particles cannot exist because they are not consistent with the known
laws of physics. If such particles did exist, they could be used to
build a tachyonic antitelephone and send signals faster than light,
which would lead to violations of causality. Potentially consistent
theories that allow faster-than-light particles include those that break
Lorentz invariance, the symmetry underlying special relativity, so that
the speed of light is not a barrier.
In the 1967 paper that
coined the term, Feinberg proposed that tachyonic particles could be
quanta of a quantum field with negative squared mass. However, it was
soon realized that excitations of such imaginary mass fields do "not" in
fact propagate faster than light, and instead represent an instability
known as tachyon condensation. Nevertheless, negative squared mass
fields are commonly referred to as "tachyons", and in fact have come to
play an important role in modern physics.
Wiz Science™ is "the" learning channel for children and all ages.
SUBSCRIBE TODAY
Disclaimer:
This video is for your information only. The author or publisher does
not guarantee the accuracy of the content presented in this video. USE
AT YOUR OWN RISK.
Background Music:
"The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library.
This video uses material/images from https://en.wikipedia.org/wiki/Tachyon, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/b... . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/b... . To reuse/adapt the content in your own work, you must comply with the license terms.
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