We discuss the recently proposed quantum action-its interpretation, its motivation , its mathematical properties and its use in physics: quantum mechanical tunneling, quantum instantons and quantum chaos. 1. Introduction. Modern physics returns to some of its origins dating back to the first part of the last century. Examples are entanglement, according to Schrödinger the most peculiar property...

Some results indicate that quantum information based on quantum physics is more powerful than classical one. In this paper, we propose new tricks based on quantum physics. Our tricks are methods inspired by the strategies of quantum game theory. In these tricks, magicians have the ability of quantum physics, but spectators have only classical one. We propose quantum tricks such that, by manipul...

1 Quantum Field Theory ( QFT ) Why We Need It? 7 1.1 Two Flavors of QFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.2 QFT as a Special Application of Quantum Mechanics . . . . . . . . . . . . . 8 1.3 QFT as a Fundamentally New Physics Relativistic Multiparticle Quantum Physics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3.1 QFT as conven...

This thesis is an exploration in quantum computation and modern physics. Atomic, molecular, and optical (AMO) physics, a centerpiece of modern physics, originated in the 1950’s with the discovery of nuclear magnetic resonance (NMR), a field which has mostly been left behind in physics. However, NMR has recently taken yet another leap: quantum computers of up to seven qubits in size, the largest...

Quantum theory as a basic physical theory has to be part of the physics education at school. At least the most fundamental features and principles of it have to be conveyed to the students. However there is no general consensus and a certain uncertainty about the main focus of teaching. One striking difference between classical and quantum physics is represented by the nature of physical object...