Distribution of high-dimensional entanglement via an intra-city free-space link
نویسندگان
چکیده
منابع مشابه
Distribution of high-dimensional entanglement via an intra-city free-space link
Quantum entanglement is a fundamental resource in quantum information processing and its distribution between distant parties is a key challenge in quantum communications. Increasing the dimensionality of entanglement has been shown to improve robustness and channel capacities in secure quantum communications. Here we report on the distribution of genuine high-dimensional entanglement via a 1.2...
متن کاملLong-distance free-space distribution of quantum entanglement.
We demonstrate the distribution of quantum entanglement via optical free-space links to independent receivers separated by 600 m, with no line of sight between each other. A Bell inequality between those receivers is violated by more than four standard deviations, confirming the quality of the entanglement. This outdoor experiment represents a step toward satellite-based distributed quantum ent...
متن کاملHigh-dimensional entanglement certification
Quantum entanglement is the ability of joint quantum systems to possess global properties (correlation among systems) even when subsystems have no definite individual property. Whilst the 2-dimensional (qubit) case is well-understood, currently, tools to characterise entanglement in high dimensions are limited. We experimentally demonstrate a new procedure for entanglement certification that is...
متن کاملQuantum information distribution via entanglement
In the quantum teleportation scheme [1], quantum information of an unknown state of a d-level particle (an “input” particle) is faithfully transmitted from a sender (Alice) to a remote receiver (Bob) via an initially shared pair of maximally entangled particles. The distributed entangled particles shared by Alice and Bob function as a quantum information channel for the faithful transmission. Q...
متن کاملQuantifying Photonic High-Dimensional Entanglement.
High-dimensional entanglement offers promising perspectives in quantum information science. In practice, however, the main challenge is to devise efficient methods to characterize high-dimensional entanglement, based on the available experimental data which is usually rather limited. Here we report the characterization and certification of high-dimensional entanglement in photon pairs, encoded ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Communications
سال: 2017
ISSN: 2041-1723
DOI: 10.1038/ncomms15971