“To analyse this concept of entanglement, we utilize a tool from quantum information science named entanglement entropy, which quantifies the degree of entanglement within a system,” Tu explains. In ...

Professor Brian Cox explains the concept of entropy and the arrow of time ... This clip is useful for students of Physics or Chemistry. It can help explain why travelling backwards in time ...

It expresses a fundamental and simple truth about the universe: that disorder, characterised as a quantity known as entropy ... very small scales of quantum physics where few particles are ...