Zobrazeno 1 - 10
of 260
pro vyhledávání: '"Fedrizzi, Alessandro"'
Autor:
Ho, Joseph, Webb, Jonathan W., Brooks, Russell M. J., Grasselli, Federico, Gauger, Erik, Fedrizzi, Alessandro
Quantum networks will provide unconditional security for communication, computation and distributed sensing tasks. We report on an experimental demonstration of private parameter estimation, which allows a global phase to be evaluated without reveali
Externí odkaz:
http://arxiv.org/abs/2410.00970
Autor:
Chiriano, Fabrizio, Morrison, Christopher L., Ho, Joseph, Jaeken, Thomas, Fedrizzi, Alessandro
Quantum networks typically operate in the telecom wavelengths to take advantage of low-loss transmission in optical fibres. However, bright quantum dots (QDs) emitting highly indistinguishable quantum states of light, such as InGaAs QDs, often emit p
Externí odkaz:
http://arxiv.org/abs/2407.08788
Autor:
Ulibarrena, Andrés, Webb, Jonathan W., Pickston, Alexander, Ho, Joseph, Fedrizzi, Alessandro, Pozas-Kerstjens, Alejandro
Quantum networks connect and supply a large number of nodes with multi-party quantum resources for secure communication, networked quantum computing and distributed sensing. As these networks grow in size, certification tools will be required to answ
Externí odkaz:
http://arxiv.org/abs/2403.02376
Autor:
Webb, Jonathan W., Ho, Joseph, Grasselli, Federico, Murta, Gláucia, Pickston, Alexander, Ulibarrena, Andrés, Fedrizzi, Alessandro
Publikováno v:
Optica 11, 872 (2024)
Anonymous quantum conference key agreement (AQCKA) allows a group of users within a network to establish a shared cryptographic key without revealing their participation. Although this can be achieved using bi-partite primitives alone, it is costly i
Externí odkaz:
http://arxiv.org/abs/2311.14158
Autor:
Ulibarrena, Andres, Sopena, Alejandro, Brooks, Russell, Centeno, Daniel, Ho, Joseph, Sierra, German, Fedrizzi, Alessandro
Publikováno v:
Physical Review Research, 6(2), 023248 (2024)
In this paper, we study a faithful translation of a two-player quantum Morra game, which builds on previous work by including the classical game as a special case. We propose a natural deformation of the game in the quantum regime in which Alice has
Externí odkaz:
http://arxiv.org/abs/2311.08495
Autor:
Faleo, Tommaso, Brunner, Eric, Webb, Jonathan W., Pickston, Alexander, Ho, Joseph, Weihs, Gregor, Buchleitner, Andreas, Dittel, Christoph, Dufour, Gabriel, Fedrizzi, Alessandro, Keil, Robert
Entanglement and interference are both hallmark effects of quantum physics. Particularly rich dynamics arise when multiple (at least partially) indistinguishable particles are subjected to either of these phenomena. By combining both entanglement and
Externí odkaz:
http://arxiv.org/abs/2310.08630
Autor:
Chiriano, Fabrizio, Ho, Joseph, Morrison, Christopher L., Webb, Jonathan W., Pickston, Alexander, Graffitti, Francesco, Fedrizzi, Alessandro
Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols by allowing each DOF to perform the task it is optimally suited for. Here we demonstrate the generation of photon pairs hyper-entang
Externí odkaz:
http://arxiv.org/abs/2304.12195
Autor:
Morrison, Christopher L., Pousa, Roberto G., Graffitti, Francesco, Koong, Zhe Xian, Barrow, Peter, Stoltz, Nick G., Bouwmeester, Dirk, Jeffers, John, Oi, Daniel K. L., Gerardot, Brian D., Fedrizzi, Alessandro
Quantum key distribution with solid-state single-photon emitters is gaining traction due to their rapidly improving performance and compatibility with future quantum network architectures. In this work, we perform fibre-based quantum key distribution
Externí odkaz:
http://arxiv.org/abs/2209.03394
Autor:
Pickston, Alexander, Ho, Joseph, Ulibarrena, Andrés, Grasselli, Federico, Proietti, Massimiliano, Morrison, Christopher L., Barrow, Peter, Graffitti, Francesco, Fedrizzi, Alessandro
Publikováno v:
npj Quantum Inf 9, 82 (2023)
Quantum conference key agreement (QCKA) allows multiple users to establish a secure key from a shared multi-partite entangled state. In a quantum network, this protocol can be efficiently implemented using a single copy of a N-qubit Greenberger-Horne
Externí odkaz:
http://arxiv.org/abs/2207.01643
Autor:
Webb, Jonathan W., Puthoor, Ittoop V., Ho, Joseph, Crickmore, Jonathan, Blakely, Emma, Fedrizzi, Alessandro, Andersson, Erika
Publikováno v:
Phys. Rev. Research 5, (2023) 023094
A core principle of quantum theory is that non-orthogonal quantum states cannot be perfectly distinguished with single-shot measurements. However, it is possible to exclude a subset of non-orthogonal states without error in certain circumstances. Her
Externí odkaz:
http://arxiv.org/abs/2207.00019