Die u:cris Detailansicht:
High-Dimensional Single-Photon Quantum Gates
- Autor(en)
- Amin Babazadeh, Manuel Erhard, Feiran Wang, Mehul Malik, Rahman Nouroozi, Mario Krenn, Anton Zeilinger
- Abstrakt
Transformations on quantum states form a basic building block of every quantum information system. From photonic polarization to two-level atoms, complete sets of quantum gates for a variety of qubit systems are well known. For multilevel quantum systems beyond qubits, the situation is more challenging. The orbital angular momentum modes of photons comprise one such high-dimensional system for which generation and measurement techniques are well studied. However, arbitrary transformations for such quantum states are not known. Here we experimentally demonstrate a four-dimensional generalization of the Pauli
X gate and all of its integer powers on single photons carrying orbital angular momentum. Together with the well-known Zgate, this forms the first complete set of high-dimensional quantum gates implemented experimentally. The concept of the
X gate is based on independent access to quantum states with different parities and can thus be generalized to other photonic degrees of freedom and potentially also to other quantum systems.- Organisation(en)
- Quantenoptik, Quantennanophysik und Quanteninformation
- Externe Organisation(en)
- Österreichische Akademie der Wissenschaften (ÖAW), Institute for Advanced Studies in Basic Sciences, Xi'an Jiaotong University (XJTU)
- Journal
- Physical Review Letters
- Band
- 119
- Anzahl der Seiten
- 6
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.119.180510
- Publikationsdatum
- 11-2017
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103026 Quantenoptik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Allgemeine Physik und Astronomie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/57d2ebfd-3abd-4000-82dc-8ad7b4d5409c