Different Types of Photon Entanglement from a Constantly Driven Quantum Emitter Inside a Cavity

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005267
URN to cite this document: urn:nbn:de:bvb:703-epub-5267-9

Title data

Seidelmann, Tim ; Cosacchi, Michael ; Cygorek, Moritz ; Reiter, Doris E. ; Vagov, Alexei ; Axt, Vollrath Martin:
Different Types of Photon Entanglement from a Constantly Driven Quantum Emitter Inside a Cavity.
In: Advanced Quantum Technologies. Vol. 4 (2020) Issue 1 . - pp. 1-14. - No. 2000108.
ISSN 2511-9044
DOI der Verlagsversion: https://doi.org/10.1002/qute.202000108

	Format: PDF Name: qute.202000108.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
	Download (1MB)

Project information

Project financing:	Alexander von Humboldt-Stiftung Deutsche Forschungsgemeinschaft Russian Science Foundation under the Project 18-12-00429

Abstract

Bell states are the most prominent maximally entangled photon states. In a typical four-level emitter, like a semiconductor quantum dot, the photon states exhibit only one type of Bell state entanglement. By adding an external driving to the emitter system, also other types of Bell state entanglement are reachable without changing the polarization basis. In this work, it is shown under which conditions the different types of entanglement occur and analytical equations are given to explain these findings. Furthermore, special points are identified, where the concurrence, being a measure for the degree of entanglement, drops to zero, while the coherences between the two-photon states stay strong. Results of this work pave the way to achieve a controlled manipulation of the entanglement type in practical devices.

Further data

Item Type:	Article in a journal
Keywords:	entangled quantum states; optical cavities; quantum emitters; quantum entanglement; quantum optics; condensed matter physics (theoretical)
DDC Subjects:	500 Science > 530 Physics
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-5267-9
Date Deposited:	15 Feb 2021 08:08
Last Modified:	15 Feb 2021 08:08
URI:	https://epub.uni-bayreuth.de/id/eprint/5267

Download Statistics

Download Statistics

Download Statistics

Downloads

Downloads per month over past year