Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Fitzsimons, Joseph F."'
Publikováno v:
Phys. Rev. A 100, 062309 (2019)
We present a verifiable and blind protocol for assisted universal quantum computing on continuous-variable (CV) platforms. This protocol is highly experimentally-friendly to the client, as it only requires Gaussian-operation capabilities from the lat
Externí odkaz:
http://arxiv.org/abs/1806.09137
Publikováno v:
npj Quantum Information 5, 27 (2019)
Verifying quantum states is central to certifying the correct operation of various quantum information processing tasks. In particular, in measurement-based quantum computing, checking whether correct graph states are generated is essential for relia
Externí odkaz:
http://arxiv.org/abs/1806.09138
Publikováno v:
Phys. Rev. Lett. 123, 150502 (2019)
The capacity of a channel is known to be equivalent to the highest rate at which it can generate entanglement. Analogous to entanglement, the notion of a causality measure characterises the temporal aspect of quantum correlations. Despite holding an
Externí odkaz:
http://arxiv.org/abs/1804.02594
Autor:
Zhao, Zhikuan, Fitzsimons, Jack K., Rebentrost, Patrick, Dunjko, Vedran, Fitzsimons, Joseph F.
Machine learning has recently emerged as a fruitful area for finding potential quantum computational advantage. Many of the quantum enhanced machine learning algorithms critically hinge upon the ability to efficiently produce states proportional to h
Externí odkaz:
http://arxiv.org/abs/1804.00281
Autor:
Zhao, Zhikuan, Fitzsimons, Jack K., Osborne, Michael A., Roberts, Stephen J., Fitzsimons, Joseph F.
Publikováno v:
Phys. Rev. A 100, 012304 (2019)
Gaussian processes (GPs) are important models in supervised machine learning. Training in Gaussian processes refers to selecting the covariance functions and the associated parameters in order to improve the outcome of predictions, the core of which
Externí odkaz:
http://arxiv.org/abs/1803.10520
Autor:
Zeuner, Jonas, Pitsios, Ioannis, Tan, Si-Hui, Sharma, Aditya N., Fitzsimons, Joseph F., Osellame, Roberto, Walther, Philip
Quantum computers promise not only to outperform classical machines for certain important tasks, but also to preserve privacy of computation. For example, the blind quantum computing protocol enables secure delegated quantum computation, where a clie
Externí odkaz:
http://arxiv.org/abs/1803.10246
Autor:
Zhao, Zhikuan, Pisarczyk, Robert, Thompson, Jayne, Gu, Mile, Vedral, Vlatko, Fitzsimons, Joseph F.
Publikováno v:
Phys. Rev. A 98, 052312 (2018)
The traditional formalism of non-relativistic quantum theory allows the state of a quantum system to extend across space, but only restricts it to a single instant in time, leading to distinction between theoretical treatments of spatial and temporal
Externí odkaz:
http://arxiv.org/abs/1711.05955
We investigate the performance of a quantum algorithm for solving classical 3-SAT problems. A cycle of post-selected measurements drives the computer's register monotonically toward a steady state which is correlated to the classical solution(s). An
Externí odkaz:
http://arxiv.org/abs/1711.02687
Autor:
Roehsner, Marie-Christine, Kettlewell, Joshua A., Batalhão, Tiago B., Fitzsimons, Joseph F., Walther, Philip
One-time programs, computer programs which self-destruct after being run only once, are a powerful building block in cryptography and would allow for new forms of secure software distribution. However, ideal one-time programs have been proved to be u
Externí odkaz:
http://arxiv.org/abs/1709.09724
Clifford circuits -- i.e. circuits composed of only CNOT, Hadamard, and $\pi/4$ phase gates -- play a central role in the study of quantum computation. However, their computational power is limited: a well-known result of Gottesman and Knill states t
Externí odkaz:
http://arxiv.org/abs/1709.01805