Basic concepts for quantum optics and quantum technologies

BI Si-wen

Since the author conducted researches on quantum remote sensing (QRS) in March 2000 and on quantum spectral imaging and quantum detection in June 2003, some difficulties occur. What’s the basic theory and how to realize the technical application of QRS passive imaging? What’s the basic theory of quantum spectral theory? How to apply quantum light field entanglement state during long-distance quantum detection into use? These question urged the author to research and reflect the basic theory of light quantum (photon) future technology. Therefore, in 2006, the author began to conduct relevant exploration, and proposed the key concept of lightstring theory. Besides, after referring to some theory in modern optics and physics, namely, the optical frequency comb and the string theory, he put forward to make light quantum concept concrete based on the nature of light in lightstring theory , and on which, he proposed the generation mechanism of string-light effect. The past ten years has witnessed some preliminary progress and there will be more discoveries and progress be made in the future. From the research requirements, the paper firstly elaborates the significance of light quantum future technology, as well as its research history and status with the emphasis on its progress. The main content includes the concept of lightstring, its research method and target. Finally, the future study plan is briefly introduced. The author tries to find a new way to study the light in nature, its generation mechanism and theoretical basis for its future technology.

R. Loudon

Rajarshi Roy

Andrea Bravo Sacoto

Quantum Technology is one of the most promising as well as challenging fields of the twentieth century that takes advantage of Quantum Mechanics properties, specially quantum entanglement and quantum superposition, for running useful applications as quantum computing and quantum cryptography among others. Our Campus, EETAC, has ICFO (Institut de Ciències Fotòniques) on its premises where a broad portfolio of studies is offered. These studies focus on the knowledgement of optical technologies with the objective of giving the students the opportunity to develop their skills. On the other hand, there is a subject called TIQ (Tecnologies d'Informació Quàntica) in the fourth year of Telecommunication Systems Degree where the basic quantum concepts are taught and also their applications. Taking into account the outstanding advantages of this technology this work aims to give an overview on the basics of quantum computing and quantum optics through theoric explanations, definitions and basic mathematical formulas with the objective of carrying out quantum experiments on the undergraduate level that help on the approach of the new generation of students to these new technologies and awake their interest on this field. Pricelists with the necessary elements for performing the experiments are also provided as well as a list of different providers in order to give an estimation on the cost that setting up this quantum optical laboratory would imply.

Hans‐A. Bachor, Timothy C. Ralph

In the third, fully revised and expanded edition of this well established textbook, the authors present new concepts, results, techniques, and the latest experiments in the field of quantum optics. They begin with the basic building blocks and concepts, before moving on to detailed procedures, and novel techniques. The focus is on metrology, communications, and quantum logic, with a special emphasis on single photon technology as well as hybrid detection. A new feature to this edition are the end-of-chapter summaries and full problems sets throughout.