Guha Majumdar, M and Chandrashekar, CM (2022) Polarization-path-frequency entanglement using interferometry and frequency shifters. In: Journal of Physics B: Atomic, Molecular and Optical Physics, 55 (4).
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Abstract
Higher dimensional Hilbert space along with ability to control multiple degrees of freedom of photon and entangle them has enabled new quantum protocols for various quantum information processing applications. Here, we propose a scheme to generate and control polarization-path-frequency entanglement using the operative elements required to implement a polarization-controlled quantum walk in the path (position) space and frequency domain. Hyperentangled states manifests in the controlled dynamics using an interferometric setup where half-wave plates, beam-splitters and frequency shifters such as those based on the electro-optic effect are used to manipulate the polarization, path and frequency degrees of freedom respectively. The emphasis is on utilizing the polarization to influence the movement to a specific value in the frequency and position space. Negativity between the subspaces is calculated to demonstrate the controllability of the entanglement between the three degrees of freedom and the effect of noise on the entanglement is modelled using the depolarizing channel. Progress reported with experimental demonstration of realization of quantum walk using quantum states of light makes quantum walks a practical approach to generate hyperentangled states. © 2022 IOP Publishing Ltd
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Publisher: | IOP Publishing Ltd |
| Additional Information: | The copyright for this article belongs to authors |
| Keywords: | Degrees of freedom (mechanics); Frequency domain analysis; Hilbert spaces; Interferometry; Polarization; Prisms; Quantum optics, Frequency shifters; High-dimensional; Higher-dimensional; Multiple degrees of freedom; Positions space; Processing applications; Quantum information processing; Quantum protocols; Quantum technologies; Quantum walk, Quantum entanglement |
| Department/Centre: | Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics |
| Date Deposited: | 12 May 2022 05:39 |
| Last Modified: | 12 May 2022 05:39 |
| URI: | https://eprints.iisc.ac.in/id/eprint/71626 |
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