A double slit and a position-momentum EPR correlation
نویسنده
چکیده
In this paper we discuss a relation between an EPR correlation and an interference fringe by a double slit. In the double slit experiment if we detect which slit a particle choose an interference fringe of the double slit disappeared. On the other hand in EPR correlation a pair of particles has correlated positions. So if we detect one particle’s position the other’s interference fringe of the double slit disappeared. But if we destroy an information of a position of one particle the other’s interference fringe of the double slit will appear.
منابع مشابه
Momentum Kicks Due to Quantum Localization
The momentum changes caused by position measurements are a central feature of wave-particle duality. Here we investigate two cases-localization by a single slit, and which-way detection in the double-slit interference experiment-and examine in detail the associated momentum changes. Particular attention is given to the transfer of momentum between particle and detector, and the recoil of the me...
متن کاملDirectly observing momentum transfer in twin-slit "which-way" experiments
Making a position measurement to determine through which slit a particle has passed necessarily destroys the twin-slit interference pattern (see Fig. 1). This is the canonical example of Bohr’s complementarity principle [1, 2]. To defend this principle against Einstein’s recoiling slit gedankenexperiment, Bohr relied upon the recently (in 1927) derived Heisenberg uncertainty relation [3] to sho...
متن کاملA Delayed Choice Quantum Eraser
Complementarity, perhaps the most basic principle of quantum mechanics, distinguishes the world of quantum phenomena from the realm of classical physics. Quantum mechanically, one can never expect to measure both precise position and momentum of a quantum at the same time. It is prohibited. We say that the quantum observables “position” and “momentum” are “complementary” because the precise kno...
متن کاملMeasurement of the orbital-angular-momentum spectrum of fields with partial angular coherence using double-angular-slit interference
We implement an interferometric method using two angular slits to measure the orbital-angular-momentum (OAM) mode spectrum of a field with partial angular coherence. As the angular separation of the slits changes, an interference pattern for a particular OAM mode is obtained. The visibility of this interference pattern as a function of angular separation is equivalent to the angular correlation...
متن کاملRealism in the Realized Popper’s Experiment
The realization of Karl Popper’s EPR-like experiment by Shih and Kim (published 1999) produced the result that Popper hoped for: no “action at a distance” on one photon of an entangled pair when a measurement is made on the other photon. This experimental result is interpretable in local realistic terms: each photon has a definite position and transverse momentum most of the time; the position ...
متن کامل