Simulation of Distributed Quantum Computing based on Teleportation
Year: 2026
Type: conference-paper
Abstract: Distributed quantum computing (DQC) uses quantum communication to pool the computational power of multiple quantum processors (QPU). Since qubits in a DQC system are not necessarily co-located, interactions between non-co-located qubits require quantum teleportation, which relies on entanglement to transfer qubit states between distant nodes. As DQC typically requires many teleportations, quantum networks must efficiently generate and distribute high-fidelity entanglement to enable these teleportations. However, since large-scale quantum networks are not yet available, simulations are essential to understand their impact on DQC performance. This paper presents a simulation-based evaluation of teleportation-based DQC under varying real-world network conditions and two distribution schemes. Network parameters such as maximum connection length, entanglement fidelity, and quantum memory coherence time are evaluated using two small-scale Grover circuits to show the impact on computational fidelity and execution delay. The results show that computation fidelity drops sharply below practical thresholds when entanglement fidelity falls below 0.95 or memory coherence is under 1s. Additionally, a runtime analysis shows a 32 times increase in simulation time when both circuit width and circuit depth are increased.
Authors: Benedikt Baier, Leo Sünkel, Wolfgang Kellerer
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7168271110