23 citations · 92 across the 21 of their papers we have counts for
20 papers · 1 filter
Trajectree - A quantum trajectory-based quantum circuit simulator
Ansh Singal, Allen Zang, Jordan Thomas +5
We introduce Trajectree, a quantum trajectory-based quantum circuit simulator that uses a novel, state-saving partial execution of the quantum circuits to simulate broad and deep n…
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…
Magic Gate Teleportation: Structure, Useful Resource States, and Simpler Feedforward
Yunzhe Zheng, Allen Zang, Aleksander Kubica
Quantum gate teleportation is a key technique in fault-tolerant quantum computation that uses resource states to implement logical gates. Here, we develop a theory of magic gate te…
Realistic Simulation of Quantum Repeater with Encoding and Classical Error Correction
Sagar Patange, Caitao Zhan, Bikun Li +4
Quantum repeaters are essential for scalable long-distance quantum networking. As quantum information processing moves toward fault-tolerant and error-corrected operations, it beco…
Optimal scheme for distributed quantum metrology
Zhiyao Hu, Allen Zang, Jianwei Wang +4
Optimal strategies for local quantum metrology -- including the preparation of optimal probe states, implementation of optimal control and measurement strategies, are well establis…
PhotonIDs: ML-Powered Photon Identification System for Dark Count Elimination
Karl C. Linne, Sho Uemura, Yue Ji +6
Reliable single photon detection is the foundation for practical quantum communication and networking. However, today's superconducting nanowire single photon detector(SNSPD) inher…
SQuaD: Smart Quantum Detection for Photon Recognition and Dark Count Elimination
Karl C. Linne, Sho Uemura, Yue Ji +5
Quantum detectors of single photons are an essential component for quantum information processing across computing, communication and networking. Today's quantum detection system,…
Enhancing Noisy Quantum Sensing by GHZ State Partitioning
Allen Zang, Tian-Xing Zheng, Peter C. Maurer +3
Presence of harmful noise is inevitable in entanglement-enhanced sensing systems, requiring careful allocation of resources to optimize sensing performance in practical scenarios.…
Quantum secret sharing in a triangular superconducting quantum network
Haoxiong Yan, Allen Zang, Joel Grebel +11
We present a three-node quantum communication testbed with a triangular topology, each side of the triangle formed by a 1.3-meter-long transmission line. We demonstrate state trans…
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…
Cross-Validating Quantum Network Simulators
Joaquin Chung, Michal Hajdušek, Naphan Benchasattabuse +7
We present a first cross-validation of two open-source quantum network simulators, QuISP and SeQUeNCe, focusing on basic networking tasks to ensure consistency and accuracy in simu…
Hardware-Software Co-design for Distributed Quantum Computing
Ji Liu, Allen Zang, Martin Suchara +2
Distributed quantum computing (DQC) offers a pathway for scaling up quantum computing architectures beyond the confines of a single chip. Entanglement is a crucial resource for imp…
Quantum Advantage in Distributed Sensing with Noisy Quantum Networks
Allen Zang, Alexander Kolar, Alvin Gonzales +5
We show that quantum advantage in distributed sensing can be achieved with noisy quantum networks which only distribute noisy entangled states. We derive a closed-form expression o…
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…
Analytical Performance Estimations for Quantum Repeater Network Scenarios
Allen Zang, Joaquin Chung, Rajkumar Kettimuthu +2
Quantum repeater chains will form the backbone of future quantum networks that distribute entanglement between network nodes. Therefore, it is important to understand the entanglem…
Provable Optimality of the Square-Tooth Atomic Frequency Comb Quantum Memory
Allen Zang, Martin Suchara, Tian Zhong
Atomic frequency comb (AFC) quantum memories are a promising technology for quantum repeater networks because they enable multi-mode, long-time, and high-fidelity storage of photon…
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…
Simulation of Entanglement Generation between Absorptive Quantum Memories
Allen Zang, Alexander Kolar, Joaquin Chung +3
Quantum entanglement is an essential resource for quantum networks. However, the generation of entanglement between physical devices at remote network nodes is a challenging task t…
Adaptive, Continuous Entanglement Generation for Quantum Networks
Alexander Kolar, Allen Zang, Joaquin Chung +2
Quantum networks, which enable the transfer of quantum information across long distances, promise to provide exciting benefits and new possibilities in many areas including communi…