Weak Measurements with Entangled Probes

Abstract

Encoding the imaginary part of a weak value onto an initially entangled probe can modify its entanglement content - provided the probe observable can distinguish between states of different entropies. Apart from fundamental interest, this result illustrates the utility of the imaginary weak value as a calculational tool in certain entanglement concentration protocols.

4 pages, single diagram

References in corpus (4)

• Complex weak values in quantum measurement
• Weak values and the Leggett-Garg inequality in solid-state qubits
• Quantum Averages of Weak Values
• Weak Values and Continuous-Variable Entanglement Concentration