Quantum Maxwell’s Demon
1. Classical Background: Who is Maxwell’s Demon? In 1867, physicist James Clerk Maxwell proposed a thought experiment that became famous in thermodynamics and information theory. He imagined a tiny, intelligent….
Tag: quantum feedback control
Weak Measurements
In standard quantum mechanics, measurements are usually described as strong or projective measurements. This means that when you measure a quantum system—say, the spin of an electron or the polarization….
Quantum Feedback Control
Feedback control is a universal concept in both classical and quantum systems. It refers to a process where a system’s current behavior is measured, and those results are used to….