Skip to Content.
Sympa Menu

fizinfo - [Fizinfo] Szemináriumok - Seminars: Trényi Róbert

fizinfo AT


List archive

[Fizinfo] Szemináriumok - Seminars: Trényi Róbert

Chronological Thread 
  • From: Szeminárium koordinátor <sem-admin AT>
  • To: SZFI User <szfkiuser AT>,Fizinfo <fizinfo AT>
  • Cc: Fizinfo <fizinfo AT>
  • Subject: [Fizinfo] Szemináriumok - Seminars: Trényi Róbert
  • Date: Thu, 27 Apr 2023 06:00:01 +0200 (CEST)
  • Authentication-results: (amavisd-new); dkim=pass (1024-bit key) reason="pass (just generated, assumed good)"

SZFI SeminarTrényi RóbertUniversity of the Basque Country, Wigner FK
SZFIActivation of metrologically useful genuine multipartite
entanglementTuesday, 2 May 2023, 10:00, KFKI Campus, Bldg. 1, 2nd floor,
Conference RoomWe consider quantum metrology with several copies of bipartite
and multipartite quantum states. We characterize the metrological usefulness
by determining how much the state outperforms separable states. We identify a
large class of entangled states that become maximally useful for metrology in
the limit of a large number of copies, even if the state is weakly entangled
and not even more useful than separable states. This way, we activate
metrologically useful genuine multipartite entanglement. Remarkably, not only
that the maximally achievable metrological usefulness is attained
exponentially fast in the number of copies, but it can be achieved by the
measurement of a few simple correlation observables. We also make general
statements about the usefulness of a single copy of pure entangled states. We
surprisingly find that the multiqubit states presented in Hyllus et al.
[Phys. Rev. A 82, 012337 (2010)], which are not useful, become useful if we
embed the qubits locally in qutrits.&nbsp;Minden érdeklődőt szívesen látunk!
- Everyone is welcome to attend.Attila Nagysem-admin AT

  • [Fizinfo] Szemináriumok - Seminars: Trényi Róbert, Szeminárium koordinátor, 04/27/2023

Archive powered by MHonArc 2.6.19+.

Top of Page