18 citations · 41 across the 7 of their papers we have counts for
8 papers · 1 filter
Universal Improvement of Channel Fidelity via Entanglement Assistance
Xinan Chen, Eric Chitambar
Communication using quantum channels generally requires encoding and decoding on many identical uses of a quantum channel. In practical settings, decoherence may severely limit our…
Entanglement Distillation and Swapping Scheduling in Quantum Repeaters with Noisy Memories
Siddharth Chander, Xinan Chen, Allen Zang
Entanglement distillation and entanglement swapping have been extensively studied assuming perfect quantum memories. However, near-term quantum networks will be fundamentally limit…
Enhancing Entanglement Purification with Shared Randomness
Allen Zang, Bikun Li, Xinan Chen +4
Entanglement purification protocols (EPPs) are essential for improving entanglement fidelity to support fault-tolerant distributed quantum information processing. Practical entangl…
Entanglement Purification in Quantum Networks: Guaranteed Improvement and Optimal Time
Allen Zang, Xin-An Chen, Eric Chitambar +2
While the concept of entanglement purification protocols (EPPs) is straightforward, the integration of EPPs in network architectures requires careful performance evaluations and op…
No-Go Theorems for Universal Entanglement Purification
Allen Zang, Xinan Chen, Eric Chitambar +2
An entanglement purification protocol (EPP) aims to transform multiple noisy entangled states into a single entangled state with higher fidelity. In this work we consider EPPs that…
Entanglement Distribution in Quantum Repeater with Purification and Optimized Buffer Time
Allen Zang, Xinan Chen, Alexander Kolar +4
Quantum repeater networks that allow long-distance entanglement distribution will be the backbone of distributed quantum information processing. In this paper we explore entangleme…
Information Carried by a Single Particle in Quantum Multiple-Access Channels
Xinan Chen, Yujie Zhang, Andreas Winter +2
Non-classical features of quantum systems have the potential to strengthen the way we currently exchange information. In this paper, we explore this enhancement on the most basic l…
Building Multiple Access Channels with a Single Particle
Yujie Zhang, Xinan Chen, Eric Chitambar
A multiple access channel describes a situation in which multiple senders are trying to forward messages to a single receiver using some physical medium. In this paper we consider…