Coherence, Path-Predictability and I-Concurrence: A Triality
- URL: http://arxiv.org/abs/2111.06068v2
- Date: Sun, 27 Feb 2022 17:52:40 GMT
- Title: Coherence, Path-Predictability and I-Concurrence: A Triality
- Authors: Abhinash Kumar Roy, Neha Pathania, Nitish Kumar Chandra, Prasanta K.
Panigrahi, Tabish Qureshi
- Abstract summary: fringe contrast is not a good quantifier of the wave nature of a quanton in multipath interference.
A new interference visibility, based on the Hilbert-Schmidt coherence is introduced.
It quantifies the essential role that entanglement plays in multipath quantum complementarity, for the first time.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: It is well known that fringe contrast is not a good quantifier of the wave
nature of a quanton in multipath interference. A new interference visibility,
based on the Hilbert-Schmidt coherence is introduced. It is demonstrated that
this visibility is a good quantifier of wave nature, and can be experimentally
measured. A generalized path predictability is introduced, which reduces to the
predictability of Greenberger and Yasin, for the case of two paths. In a
multipath, which-way interference experiment, the new visibility, the
predictability and the I-concurrence (quantifying the entanglement between the
quanton and the path-detector), are shown to follow a tight triality relation.
It quantifies the essential role that entanglement plays in multipath quantum
complementarity, for the first time.
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