Related Experiment Video
Updated: May 25, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Entanglement witness operator for quantum teleportation
Nirman Ganguly1, Satyabrata Adhikari, A S Majumdar
1Department of Mathematics, Heritage Institute of Technology, Kolkata, West Bengal, India. nirmanganguly@gmail.com
Abstract:
The ability of entangled states to act as a resource for teleportation is linked to a property of the fully entangled fraction. We show that the set of states with their fully entangled fraction bounded by a threshold value required for performing teleportation is both convex and compact. This feature enables the existence of Hermitian witness operators, the measurement of which could distinguish unknown states useful for performing teleportation. We present an example of such a witness operator illustrating it for different classes of states.
Related Concept Videos
The Quantum-Mechanical Model of an Atom
Thomson's e/m Experiment
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...
Actor-Observer Effect
Propagation of Uncertainty from Random Error
Superposition Theorem
Hybridization of Atomic Orbitals I
