Skip to main content
Article thumbnail
Location of Repository

Topological phase for entangled two-qubit states

By Pérola Milman and Rémy Mosseri


International audienceEntangled states play a crucial role in quantum physics, ranging from fundamental aspects to quantum information processing. We show here that entangled two-qubit states can also be used to characterize unambiguously the subtelty of the $SO(3)$ rotation group topology. The well known two distinct families of path in this group are put in one-to-one correspondance with cyclic evolutions of these entangled states, resulting on a $\pi$ phase difference. We propose a simple quantum opticsinterference experiment to demonstrate this topological phase shift

Topics: quantum mechanics, topological phase, 03.65.Vf, 07.60.Ly, 42.50.Dv, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph]
Publisher: American Physical Society
Year: 2003
OAI identifier: oai:HAL:hal-00000469v1
Provided by: Hal-Diderot
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://hal.archives-ouvertes.... (external link)
  • https://hal.archives-ouvertes.... (external link)
  • https://hal.archives-ouvertes.... (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.