Non-local Skyrmions as topologically resilient quantum entangled states
of light
- URL: http://arxiv.org/abs/2210.04690v2
- Date: Wed, 12 Oct 2022 16:47:57 GMT
- Title: Non-local Skyrmions as topologically resilient quantum entangled states
of light
- Authors: Pedro Ornelas, Isaac Nape, Robert de Mello Koch and Andrew Forbes
- Abstract summary: We report the first non-local quantum entangled state with a non-trivial topology that is skyrmionic in nature.
We reveal a deep connection between entanglement and topology, giving rise to a new mechanism that we coin topological noise rejection.
Our findings hold exciting promise for the creation and preservation of quantum information by topologically structured quantum states.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In the early 1960s, inspired by developing notions of topological structure,
Tony Skyrme suggested that sub-atomic particles be described as natural
excitations of a single quantum field. Although never adopted for its intended
purpose, the notion of a skyrmion as a topologically stable field configuration
has proven highly versatile, finding application in condensed matter physics,
acoustics and more recently optics, but all realised as localised fields and
particles. Here we report the first non-local quantum entangled state with a
non-trivial topology that is skyrmionic in nature. The non-trivial topological
structure does not exist in the properties of the individual photons in the
two-photon entangled state, but rather it emerges from the entanglement between
them. We reveal a deep connection between entanglement and topology, giving
rise to a new mechanism that we coin topological noise rejection, where the
topology of the quantum wavefunction makes such quantum states robust to
entanglement decay, remaining intact until the entanglement itself vanishes.
Our findings hold exciting promise for the creation and preservation of quantum
information by topologically structured quantum states that persist even when
entanglement is fragile.
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