| Original Articles |
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New Vacuum State of the Electromagnetic Field-Matter Coupling
System and the Physical Interpretation of Casimir Effect |
| LI Tong-Zhong |
| Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 |
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| Cite this article: |
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LI Tong-Zhong 2004 Chin. Phys. Lett. 21 73-75 |
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Abstract A new concise method is presented for the calculation of the ground-state energy of the electromagnetic field and matter field interacting system. With the assumption of squeezed-like state, a new vacuum state is obtained for the interacting system. The energy of the new vacuum state is lower than that given by the second-order perturbation theory in existing theories. In our theory, the Casimir effect is attributed neither to the quantum fluctuation in the zero-point energy of the genuine electromagnetic field nor to that in the zero-point energy of the genuine matter field, but to that in the vacuum state of the interacting system. Both electromagnetic field and matter field are responsible for the Casimir effect.
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| Keywords:
42.50.ct
42.50.-p
03.65.-w
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Published: 01 January 2004
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| PACS: |
42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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42.50.-p
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(Quantum optics)
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03.65.-w
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(Quantum mechanics)
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