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Quantum entanglement in the double slit experiment with qubit which-path detectors

Kirchner, Johannes LU (2015) FYSK01 20151
Department of Physics
Mathematical Physics
Abstract
After reviewing basic concepts and tools in order to quantify entanglement, a theoretical set up is proposed, which is based on the double slit experiment and the Mach-Zehnder interferometer. A particle, which is in a superposition of two paths, can interfere with a qubit on each path before it is scattered by a beam splitter and measured by two separate detectors. After a detailed investigation, it can be shown that it is possible to induce entanglement to the qubits via post-selection. This means that the measurement does not induce entanglement, but can be used to select the entangled qubits after a number of iterations. A remarkable result is, that this works independently from the probability of interaction between the particle and... (More)
After reviewing basic concepts and tools in order to quantify entanglement, a theoretical set up is proposed, which is based on the double slit experiment and the Mach-Zehnder interferometer. A particle, which is in a superposition of two paths, can interfere with a qubit on each path before it is scattered by a beam splitter and measured by two separate detectors. After a detailed investigation, it can be shown that it is possible to induce entanglement to the qubits via post-selection. This means that the measurement does not induce entanglement, but can be used to select the entangled qubits after a number of iterations. A remarkable result is, that this works independently from the probability of interaction between the particle and the qubits, which could turn out be very beneficial in a possible realization of the set up. (Less)
Please use this url to cite or link to this publication:
author
Kirchner, Johannes LU
supervisor
organization
course
FYSK01 20151
year
type
M2 - Bachelor Degree
subject
language
English
id
7448466
date added to LUP
2015-06-25 10:01:25
date last changed
2015-06-25 10:01:25
@misc{7448466,
  abstract     = {After reviewing basic concepts and tools in order to quantify entanglement, a theoretical set up is proposed, which is based on the double slit experiment and the Mach-Zehnder interferometer. A particle, which is in a superposition of two paths, can interfere with a qubit on each path before it is scattered by a beam splitter and measured by two separate detectors. After a detailed investigation, it can be shown that it is possible to induce entanglement to the qubits via post-selection. This means that the measurement does not induce entanglement, but can be used to select the entangled qubits after a number of iterations. A remarkable result is, that this works independently from the probability of interaction between the particle and the qubits, which could turn out be very beneficial in a possible realization of the set up.},
  author       = {Kirchner, Johannes},
  language     = {eng},
  note         = {Student Paper},
  title        = {Quantum entanglement in the double slit experiment with qubit which-path detectors},
  year         = {2015},
}