Abstract

Quantitative control of spatial indistinguishability of identical subsystems as a direct quantum resource at distant sites has not yet been experimentally proven. We design a setup capable of tuning remote spatial indistinguishability of two independent photons by individually adjusting their spatial distribution in two distant regions, leading to polarization entanglement from uncorrelated photons. This is achieved by spatially localized operations and classical communication on photons that meet only at the detectors. The amount of entanglement depends uniquely on the degree of spatial indistinguishability, quantified by an entropic measure ${\cal I}$, which enables teleportation with fidelities above the classical threshold. The results open the way to viable indistinguishability-enhanced quantum information processing.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Entangling bosons through particle indistinguishability and spatial overlap

Mariana R. Barros, Seungbeom Chin, Tanumoy Pramanik, Hyang-Tag Lim, Young-Wook Cho, Joonsuk Huh, and Yong-Su Kim
Opt. Express 28(25) 38083-38092 (2020)

Remote-controlled quantum computing by quantum entanglement

Dongyang Wang, Yong Liu, Jiangfang Ding, Xiaogang Qiang, Yingwen Liu, Anqi Huang, Xiang Fu, Ping Xu, Mingtang Deng, Xuejun Yang, and Junjie Wu
Opt. Lett. 45(22) 6298-6301 (2020)

Generation of hyper-entangled photons in a hot atomic vapor

Chengyuan Wang, Chung-Hyun Lee, Yosep Kim, and Yoon-Ho Kim
Opt. Lett. 45(7) 1802-1805 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Supplementary Material (1)

NameDescription
Supplement 1       Details about the adopted formalism and the theoretical backgrounds, experimental preparation and more experimental data supporting the main results, and experimental results for the case of two photons emerging from one single BBO crystal.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics