Small entropy changes allow quantum measurements to be nearly reversed
Wednesday, September 30, 2015 - 04:00
in Physics & Chemistry
(Phys.org)—In 1975, Swedish physicist Göran Lindblad developed a theorem that describes the change in entropy that occurs during a quantum measurement. Today, this theorem is a foundational component of quantum information theory, underlying such important concepts as the uncertainty principle, the second law of thermodynamics, and data transmission in quantum communication systems.