Based on a recently developed notion of physical realizability for quantum linear stochastic systems, we formulate a quantum LQG optimal control problem for quantum linear stochastic systems where the controller itself may also be a quantum system and the plant output signal can be fully quantum. This is distinct from previous works on the quantum LQG problem where measurement is performed on t...

Winning strategies in PQ PENNY FLIP are quantum mechanical in exactly the way quantum algorithms are. 1998 Physics and Astronomy Classi cation Scheme: 03.67.Lx, 03.67.-a, 02.50.Le. American Mathematical Society Subject Classi cation: 81P15, 90D05. Journal of Economic Literature Classi cation System: C72.

Preciously given rules allow conscious systems to be included in quantum mechanical systems. There rules are derived from the empirical experience of an observer who witnesses a quantum mechanical interaction leading to the capture of a single particle. In the present paper it is shown that purely classical changes experienced by an observer are consistent with these rules. Three different inte...

This paper presents a detailed investigation of FeCr-based quaternary Heusler alloys. By using ultrasoft pseudopotential, electronic and magnetic properties the compounds are studied within framework Density Functional Theory (DFT) by Quantum Espresso package. The thermodynamic, mechanical, dynamical stability is established through comprehensive study different mechanical parameters phonon dis...

Quantum algorithms — a new topic in both informatics and physics has become a central theme of one of the most challenging areas of interdisciplinary research of modern science. This seemingly esoteric area of research which has been stimulated by Feynman in 1980 and Benioff, who was the first to suggest quantum-mechanical evolution for computation in 1982, has become a serious challenge after ...