Preparation of Cluster States of Atomic Qubits in Cavity QED

We propose an optical scheme to generate cluster states of atomic qubits, with each trapped in separate optical cavity, via atom-cavity-laser interaction. The quantum information of each qubit is encoded on the degenerate ground states of the atom, hence the entanglement between them is relatively stable against spontaneous emission. A single-photon source and two classical fields are employed in the present scheme. By controlling the sequence and time of atom-cavity-laser interaction, we show that the atomic cluster states can be produced deterministically.     

Generation of High-Dimensional Photon Entangled Coherent States in Double Electromagnetically Induced Transparency System

We present an approach to generate high-dimensional entangled coherent states between photons by using a dense atomic system in a double electromagnetically induced transparency state. The system under our consideration involves an atomic configuration with six internal states, two weak quantized probe lasers, and two strong classical coupling lasers. We show how to generate high dimensional entangled coherent states between the two probe lasers.     

双一流背景下研究生高等量子力学优质课程建设和改革探讨——以长沙理工大学为例

高等量子力学是物理学在读硕士研究生必修的专业基础课程之一.该课程具有较抽象、难理解、深奥等特点，学生学习起来相对困难，教学效果不佳，而优质的课程将会大大提高学生的学习效果.以长沙理工大学为例，从教学内容、教学方法、课程优势及特色、课程存在的问题及解决方法等各方面，详细介绍了建设高等量子力学优质课程的一些具体措施和方法.