Error-correcting entanglement swapping using a practical logical photon encoding
arXiv:2101.11082 · doi:10.1103/PhysRevA.104.052623
Abstract
Several emerging quantum technologies, including quantum networks, modular and fusion-based quantum computing, rely crucially on the ability to perform photonic Bell state measurements. Therefore, photon losses and the 50\% success probablity upper bound of Bell state measurements pose a critical limitation to photonic quantum technologies. Here, we develop protocols that overcome these two key challenges through logical encoding of photonic qubits. Our approach uses a tree graph state logical encoding, which can be produced deterministically with a few quantum emitters, and achieves near-deterministic logical photonic Bell state measurements while also protecting against errors including photon losses, with a record loss-tolerance threshold.
13 pages, 5 figures
References in corpus (12)
- Multi-party entanglement in graph states
- Deterministic Generation of a Cluster State of Entangled Photons
- A photonic cluster state machine gun
- Distributed Quantum Computation Based-on Small Quantum Registers
- Complete and Deterministic discrimination of polarization Bell state assisted by momentum entanglement
- 3/4-efficient Bell measurement with passive linear optics and unentangled ancillae
- Experimental demonstration of a graph state quantum error-correction code
- Fusion-based quantum computation
- Ultrafast Fault-Tolerant Long-Distance Quantum Communication with Static Linear Optics
- Loss Tolerant Linear Optical Quantum Memory By Measurement Based Quantum Computing
- Efficiencies of logical Bell measurements on CSS codes with static linear optics
- Freely Scalable Quantum Technologies using Cells of 5-to-50 Qubits with Very Lossy and Noisy Photonic Links
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