Quantum for pressure

Pressure-driven Quantum Phase Transition

The zero-temperature quantum phase transition (QPT) is driven by quantum fluctuations, in contrast to the more familiar finite temperature transitions driven by thermal fluctuations. This paper demonstrates our work on two kinds of QPTs in two different materials, respectively. The first work focuses on the pressure-driven antiferromagnetic QPT in pure chromium which is a model system for study...

Quantum Fluctuations of Radiation Pressure

Quantum fluctuations of electromagnetic radiation pressure are discussed. We use an approach based on the quantum stress tensor to calculate the fluctuations in velocity and position of a mirror subjected to electromagnetic radiation. Our approach reveals that radiation pressure fluctuations are due to a cross term between vacuum and state dependent terms in a stress tensor operator product. Th...

Quantum Physics: A Case for Anti-Realism?

Linear and nonlinear optical properties of a modified Gaussian quantum dot: pressure, temperature and impurity effect

In this paper, the effect of pressure, temperature and impurity on the energylevels, binding energy, linear and nonlinear optical properties of a modified Gaussianquantum dot are studied. In this regard, the finite element method is employed to solvethe single electron Schrodinger equation in the effective mass approximation with andwithout impurity at the center of the dot. In addition, the en...

Designing a quantum genetic controller for tracking the path of quantum systems

Based on learning control methods and computational intelligence, control of quantum systems is an attractive field of study in control engineering. What is important is to establish control approach ensuring that the control process converges to achieve a given control objective and at the same time it is simple and clear. In this paper, a learning control method based on genetic quantum contr...