Photonic Networking of Quantum Memories in High-Dimensions

Fuente: arXiv
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Bibliographic Details
Main Authors: Shalaev, Mikhail, Saha, Sagnik, Toh, George, Goetting, Isabella, Kalakuntla, Ashish, Shi, Harriet Bufan, O'Reilly, Jameson, Yu, Yichao, Monroe, Christopher
Format: Preprint
Published: 2025
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author Shalaev, Mikhail
Saha, Sagnik
Toh, George
Goetting, Isabella
Kalakuntla, Ashish
Shi, Harriet Bufan
O'Reilly, Jameson
Yu, Yichao
Monroe, Christopher
author_facet Shalaev, Mikhail
Saha, Sagnik
Toh, George
Goetting, Isabella
Kalakuntla, Ashish
Shi, Harriet Bufan
O'Reilly, Jameson
Yu, Yichao
Monroe, Christopher
contents Quantum networking enables the exchange of quantum information between physically separated quantum systems, which has applications ranging from quantum computing to unconditionally secure communication. Such quantum information is generally represented by two-level quantum systems or qubits. Here, we demonstrate a quantum network of high-dimensional (HD) quantum memories or ``qudits" stored in individual atoms. The interference and detection of HD time-bin encoded single photons emitted from atomic qudit memories heralds maximally-entangled Bell states across pairs of atomic qudit levels. This approach expands the quantum information capacity of a quantum network while improving the entanglement success fraction beyond the standard 50\% limit of qubit-based measurement protocols.
format Preprint
id arxiv_https___arxiv_org_abs_2505_11704
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Photonic Networking of Quantum Memories in High-Dimensions
Shalaev, Mikhail
Saha, Sagnik
Toh, George
Goetting, Isabella
Kalakuntla, Ashish
Shi, Harriet Bufan
O'Reilly, Jameson
Yu, Yichao
Monroe, Christopher
Quantum Physics
Atomic Physics
Quantum networking enables the exchange of quantum information between physically separated quantum systems, which has applications ranging from quantum computing to unconditionally secure communication. Such quantum information is generally represented by two-level quantum systems or qubits. Here, we demonstrate a quantum network of high-dimensional (HD) quantum memories or ``qudits" stored in individual atoms. The interference and detection of HD time-bin encoded single photons emitted from atomic qudit memories heralds maximally-entangled Bell states across pairs of atomic qudit levels. This approach expands the quantum information capacity of a quantum network while improving the entanglement success fraction beyond the standard 50\% limit of qubit-based measurement protocols.
title Photonic Networking of Quantum Memories in High-Dimensions
topic Quantum Physics
Atomic Physics
url https://arxiv.org/abs/2505.11704