Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Duer, Wolfgang"'
Entanglement purification and distillation protocols are essential for harnessing the full potential of quantum communication technologies. Multiple strategies have been proposed to approach and optimize such protocols, most however restricted to Cli
Externí odkaz:
http://arxiv.org/abs/2408.00844
Autor:
Riera-Sàbat, Ferran, Dür, Wolfgang
We propose a modular quantum computation architecture based on utilizing multipartite entanglement. Each module consists of a small-scale quantum computer comprising data, memory and interaction qubits. Interaction qubits are used to selectively coup
Externí odkaz:
http://arxiv.org/abs/2406.05735
We consider multi-path routing of entanglement in quantum networks, where a pre-prepared multipartite entangled 2D cluster state serves as a resource to perform different tasks on demand. We show how to achieve parallel connections between multiple,
Externí odkaz:
http://arxiv.org/abs/2404.06578
Entanglement-based quantum networks exhibit a unique flexibility in the choice of entangled resource states that are then locally manipulated by the nodes to fulfill any request in the network. Furthermore, this manipulation is not uniquely defined a
Externí odkaz:
http://arxiv.org/abs/2403.19778
Publikováno v:
Physical Review Research 6, 033101 (2024)
We consider quantum computer architectures where interactions are mediated between hot qubits that are not in their mechanical ground state. Such situations occur, e.g., when not cooling ideally, or when moving ions or atoms around. We introduce quan
Externí odkaz:
http://arxiv.org/abs/2311.06588
Publikováno v:
2024 Quantum Sci. Technol. 9 035005
We consider the task of multiple parameter estimation in the presence of strong correlated noise with a network of distributed sensors. We study how to find and improve noise-insensitive strategies. We show that sequentially probing GHZ states is opt
Externí odkaz:
http://arxiv.org/abs/2306.01077
Publikováno v:
Phys. Rev. Lett. 132, 240601 (2024)
Variational quantum eigensolvers (VQEs) are successful algorithms for studying physical systems on quantum computers. Recently, they were extended to the measurement-based model of quantum computing, bringing resource graph states and their advantage
Externí odkaz:
http://arxiv.org/abs/2305.19200
Autor:
Mor-Ruiz, Maria Flors, Dür, Wolfgang
Publikováno v:
IEEE Journal on Selected Areas in Communications, vol. 42, no. 7, pp. 1793-1807, July 2024
We consider entanglement-based quantum networks, where multipartite entangled resource states are distributed and stored among the nodes and locally manipulated upon request to establish the desired target configuration. Separating the generation pro
Externí odkaz:
http://arxiv.org/abs/2305.03759
Autor:
Miguel-Ramiro, Jorge, Shi, Zheng, Dellantonio, Luca, Chan, Albie, Muschik, Christine A., Dür, Wolfgang
Publikováno v:
Phys. Rev. A 108, 062604 (2023)
Overcoming the influence of noise and imperfections in quantum devices is one of the main challenges for viable quantum applications. In this article, we present different protocols, which we denote as "superposed quantum error mitigation", that enha
Externí odkaz:
http://arxiv.org/abs/2304.08529
Autor:
Miguel-Ramiro, Jorge, Shi, Zheng, Dellantonio, Luca, Chan, Albie, Muschik, Christine A., Dür, Wolfgang
Publikováno v:
Phys. Rev. Lett. 131, 230601 (2023)
Overcoming the influence of noise and imperfections is a major challenge in quantum computing. Here, we present an approach based on applying a desired unitary computation in superposition between the system of interest and some auxiliary states. We
Externí odkaz:
http://arxiv.org/abs/2304.08528