title: Polarization-entangled light pulses of 10(5) photons.
abstract: We experimentally demonstrate polarization entanglement for squeezed vacuum pulses containing more than 10(5) photons. We also study photon-number entanglement by calculating the Schmidt number and measuring its operational counterpart. Theoretically, our pulses are the more entangled the brighter they are. This promises important applications in quantum technologies, especially photonic quantum gates and quantum memories.
authors.affiliation: Max Planck Institute for the Science of Light, Erlangen, Germany.
authors.forename: Timur Sh
authors.initials: TSh
authors.lastname: Iskhakov
authors.forename: Ivan N
authors.initials: IN
authors.lastname: Agafonov
authors.forename: Maria V
authors.initials: MV
authors.lastname: Chekhova
authors.forename: Gerd
authors.initials: G
authors.lastname: Leuchs