Results 51 to 60 of about 24,488 (193)

Continuous variable quantum teleportation of a thermal state in a thermal environment

Results in Physics, 2022
The analytical formula for the fidelity of teleportation from Alice to Bob of a thermal state used as an input state is derived using the characteristic function approach. As a resource state it is used a continuous-variable two-mode bosonic state shared
Alexei Zubarev, Marina Cuzminschi, Aurelian Isar   +2 more
doaj   +1 more source

Simulating Quantum State Transfer Between Distributed Devices Using Noisy Interconnects

Advanced Quantum Technologies, EarlyView.
Noisy connections challenge future networked quantum computers. This work presents a practical method to address this by simulating an ideal state transfer over noisy interconnects. The approach reduces the high sampling cost of previous methods, an advantage that improves as interconnect quality gets better.
Marvin Bechtold, Johanna Barzen, Frank Leymann, Alexander Mandl   +3 more
wiley   +1 more source

CP Measurement in Quantum Teleportation of Neutral Mesons

, 2008
Quantum teleportation using neutral pseudoscalar mesons shows novel connections between particle physics and quantum information. The projection basis, which is crucial in the teleportation process, is determined by the conservation laws of particle ...
A. Apostolakis, A. Bramon, A. Bramon, A. Go, A. Go, F. Ambrosino, W.F. Palmer, Y. Shi, Yu Shi, Yue-Liang Wu   +9 more
core   +1 more source

Probabilistic teleportation and entanglement matching [PDF]

, 1999
Teleportation may be taken as sending and extracting quantum information through quantum channels. In this report, it is shown that to get the maximal probability of exact teleportation through partially entangled quantum channels, the sender (Alice ...
A. Peres, C. H. Bennett, C. H. Bennett, C. H. Bennett, Chuan-Feng Li, D. Bouwmeester, Guang-Can Guo, L. Vaidman, N. Linden, N. Lǔtkenhaus, R. F. Werner, Wan-Li Li   +11 more
core   +2 more sources

Entanglement Swapping for Partially Entangled Qudits and the Role of Quantum Complementarity

Advanced Quantum Technologies, EarlyView.
The entanglement swapping protocol is extended to partially entangled qudit states and analyzed through complete complementarity relations. Analytical bounds on the average distributed entanglement are established, showing how the initial local predictability and entanglement constrain the operational distribution.
Diego S. Starke, Marcos L. W. Basso, Lucas C. Céleri, Jonas Maziero   +3 more
wiley   +1 more source

Memory-built-in quantum teleportation with photonic and atomic qubits

, 2008
The combination of quantum teleportation and quantum memory of photonic qubits is essential for future implementations of large-scale quantum communication and measurement-based quantum computation.
A Furusawa, AE Kozhekin, B Zhao, Bo Zhao, C-Z Peng, C-Z Peng, CH Bennett, Chih-Sung Chuu, D Bouwmeester, D Gottesman, DM Harber, DN Matsukevich, DN Matsukevich, E Knill, H-J Briegel, J-W Pan, JF Sherson, Jian-Wei Pan, Jörg Schmiedmayer, K Hammerer, K Mattle, L Jiang, L-M Duan, M Aspelmeyer, M Riebe, MD Barrett, MD Eisaman, S Chen, Shuai Chen, T Chanelière, T Schmitt-Manderbach, Yu-Ao Chen, Z Zhao, Z-B Chen, Z-S Yuan, Zhen-Sheng Yuan   +35 more
core   +1 more source

A simple proof of the unconditional security of quantum key distribution [PDF]

, 1999
Quantum key distribution is the most well-known application of quantum cryptography. Previous proposed proofs of security of quantum key distribution contain various technical subtleties.
Ben-Or M, Bennett C H, Biham E, Biham E, Dür W, Gisin N, Gottesman D, Gottesman D, Hoi-Kwong Lo, Lo H-K, Mayers D, Mayers D, Wootters W K   +12 more
core   +3 more sources

Digital Twin Simulations Toolbox of the Nitrogen‐Vacancy Center in Diamond

Advanced Quantum Technologies, EarlyView.
The Nitrogen‐vacancy (NV) center in diamond is a key platform within quantum technologies. This work introduces a Python based digital‐twin of the NV, where the spin dynamics of the system is simulated without relying on commonly used approximations, such as the adoption of rotating frame. The digital‐twin is validated through three different examples,
Lucas Tsunaki, Anmol Singh, Sergei Trofimov, Boris Naydenov   +3 more
wiley   +1 more source

Would the fidelity of quantum teleportation be increased by a local filtering operation near a dilaton black hole under decoherence?

European Physical Journal C: Particles and Fields
Previous studies have shown that the effects of black holes and environmental decoherence generally negatively influence quantum correlations and the fidelity of quantum teleportation in curved spacetime.
Chun-yao Liu, Zheng-wen Long, Qi-liang He   +2 more
doaj   +1 more source

Teleportation Systems Toward a Quantum Internet

PRX Quantum, 2020
Quantum teleportation is essential for many quantum information technologies, including long-distance quantum networks. Using fiber-coupled devices, including state-of-the-art low-noise superconducting nanowire single-photon detectors and off-the-shelf ...
Raju Valivarthi, Samantha I. Davis, Cristián Peña, Si Xie, Nikolai Lauk, Lautaro Narváez, Jason P. Allmaras, Andrew D. Beyer, Yewon Gim, Meraj Hussein, George Iskander, Hyunseong Linus Kim, Boris Korzh, Andrew Mueller, Mandy Rominsky, Matthew Shaw, Dawn Tang, Emma E. Wollman, Christoph Simon, Panagiotis Spentzouris, Daniel Oblak, Neil Sinclair, Maria Spiropulu   +22 more
doaj   +1 more source