Nondisturbing measurements with the purpose of detecting an action experienced bу the test body are different from what is required where one wants to measure the observaЫes of а free body. For detection, it is sufficient that the observed body-sensor system remain undisturbed during the measurement, but the value measured does not need to coincide with the value of the observable in а free body. The study demonstrates the impossibility of controlling, i.e. registering continuously with an arbitrarily small error, the velocity, the energy, and the components of а complex amplitude.
Department of Molecular Physics and Physical Measurements
Science News of the Faculty of Physics, Lomonosov Moscow State University
This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.