The Decoherence Of Measurement

Sam Vaknin's psychology, philosophy, economics and diplomacy can be said that measurement is the most difficult philosophical problem in quantum mechanics (QM). The generally accepted (aka Copenhagen) QM interpretation shows that our conscious and intelligent observable measurement behavior determines the measurement results in the quantum (micro) domain. The wave function (coexistence of the system, representing the superimposed state) is folded after measurement.

Some of the overlay observation and measurement problems are called decoherence. Attempts to measure or acquire knowledge about quantum superposition (or virtually any type of interaction with its environment, even if there is only one photon) will cause them to aggregate and the superposition effectively destroyed It will be in a single position or state. Destroy the capabilities of the countries that interfere with each other. Decoherence then leads to the collapse of the quantum wave function and the settling of the particles in the observed state of classical physics, from behavior from quantum to classical.

Significant progress has been made in the theoretical understanding of the collapse process over the past few decades. A theoretical framework called quantum decoherence provides an explanation for the lack of post quantum coherence. Decoherence correctly predicts the final eigenstate form and probability distribution and describes the apparent randomness of the final state selection with respect to selection. Let's say that the quantum states are in a superimposed state. It is the eigenstate of the so-called "measurement" operator in front of Von Neumann's second device. In order to perform "measurement", the system described needs to interact with the measuring device described by the quantum state. Then, the full wave function before interacting with the second device. During the interaction of the object and the measuring device, a single evolution should achieve the following transition from the beginning to the end wave function.