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Casimir Effect
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CCRQHMQ4F4P
Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025
Details
In quantum field theory, the Casimir effect and the Casimir-Polder force are physical forces arising from a quantized field. The typical example is of two uncharged metallic plates in a vacuum, placed a few micrometers apart, without any external electromagnetic field. In a classical description, the lack of an external field also means that there is no field between the plates, and no force would be measured between them. When this field is instead studied using quantum electrodynamics, it is seen that the plates do affect the virtual photons which constitute the field, and generate a net force either an attraction or a repulsion depending on the specific arrangement of the two plates. Although the Casimir effect can be expressed in terms of virtual particles interacting with the objects, it is best described and more easily calculated in terms of the zero-point energy of a quantized field in the intervening space between the objects. This force has been measured, and is a striking example of an effect purely due to second quantization.However, the treatment of boundary conditions in these calculations has led to some controversy.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130616816
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H220mm x B150mm x T10mm
- Jahr 2010
- EAN 9786130616816
- Format Fachbuch
- ISBN 978-613-0-61681-6
- Titel Casimir Effect
- Untertitel Force, Electric charge, Vacuum, Electromagnetic field, Classical electromagnetism, Quantum electrodynamics, Virtual particle, Zero-point energy, Canonical quantization
- Gewicht 255g
- Herausgeber Alphascript Publishing
- Anzahl Seiten 160
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