Jaewoo Joo, 2 Matthew Elliott, Daniel K. L. Oi, Eran Ginossar, and Timothy P. Spiller Quantum Information Science, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K. Advanced Technology Institute and Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom SUPA Department of Physics, University of Strathclyde, Glasgow, G4 0NG, United Kingdom York Ce...

Gang Chen,1,2,3 Ming Gong,1 and Chuanwei Zhang1,* 1Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164 USA 2Department of Physics, Shaoxing University, Shaoxing 312000, People’s Republic of China 3State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, People’s Re...

1Department of Physics, California Institute of Technology, Pasadena, 91125, USA 5 2Department of Physics, and Center for Quantum Information Science & Technology, University of Southern 6 California, Los Angeles, California 90089, USA 7 3Departments of Electrical Engineering, Chemistry and Physics, and Center for Quantum Information Science & 8 Technology, University of Southern California, Lo...

This review explores the relationship between physics and communications over the past 125 years. We find that four eras of major change in communications technology can be traced to the corresponding major discoveries of physics that directly influenced the communications industry. The four major eras of physics we explore are electromagnetism, the electron, quantum mechanics, and quantum optics.

Some contributions of physics towards the understanding of consciousness are described. As recent relevant models, associative memory neural networks are mentioned. It is shown that consciousness and quantum physics share some properties. Two existing quantum models are discussed.