Twisted Radio Waves and Twisted Thermodynamics |
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| Authors: | Laszlo B Kish Robert D Nevels |
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| Institution: | 1. Solid State Electronics, Photonics, and Nanoengineering Division, Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, United States of America.; 2. Electro-Magnetics and Microwaves Division, Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas, United States of America.; National Research & Technology Council, Argentina, |
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| Abstract: | We present and analyze a gedanken experiment and show that the assumption that an antenna operating at a single frequency can transmit more than two independent information channels to the far field violates the Second Law of Thermodynamics. Transmission of a large number of channels, each associated with an angular momenta ‘twisted wave’ mode, to the far field in free space is therefore not possible. |
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