Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Iten, Raban"'
Autor:
Iten, Raban
Quantum generalizations of R\'enyi's entropies are a useful tool to describe a variety of operational tasks in quantum information processing. Two families of such generalizations turn out to be particularly useful: the Petz quantum R\'enyi divergenc
Externí odkaz:
http://arxiv.org/abs/2012.08327
Publikováno v:
Quantum 5, 412 (2021)
We consider the task of breaking down a quantum computation given as an isometry into C-NOTs and single-qubit gates, while keeping the number of C-NOT gates small. Although several decompositions are known for general isometries, here we focus on a m
Externí odkaz:
http://arxiv.org/abs/2006.00016
Autor:
Nautrup, Hendrik Poulsen, Metger, Tony, Iten, Raban, Jerbi, Sofiene, Trenkwalder, Lea M., Wilming, Henrik, Briegel, Hans J., Renner, Renato
Publikováno v:
Mach. Learn.: Sci. Technol. 3, 045025, 2022
To make progress in science, we often build abstract representations of physical systems that meaningfully encode information about the systems. The representations learnt by most current machine learning techniques reflect statistical structure pres
Externí odkaz:
http://arxiv.org/abs/2001.00593
Publikováno v:
ACM Transactions on Quantum Computing, Volume 3, Issue 1, 2022
Quantum computations are typically compiled into a circuit of basic quantum gates. Just like for classical circuits, a quantum compiler should optimize the quantum circuit, e.g. by minimizing the number of required gates. Optimizing quantum circuits
Externí odkaz:
http://arxiv.org/abs/1909.05270
Autor:
Stamatopoulos, Nikitas, Egger, Daniel J., Sun, Yue, Zoufal, Christa, Iten, Raban, Shen, Ning, Woerner, Stefan
Publikováno v:
Quantum 4, 291 (2020)
We present a methodology to price options and portfolios of options on a gate-based quantum computer using amplitude estimation, an algorithm which provides a quadratic speedup compared to classical Monte Carlo methods. The options that we cover incl
Externí odkaz:
http://arxiv.org/abs/1905.02666
Publikováno v:
IEEE Transactions on Information Theory 67.2 (2020): 946-960
The capacity of noisy quantum channels characterizes the highest rate at which information can be reliably transmitted and it is therefore of practical as well as fundamental importance. Capacities of classical channels are computed using alternating
Externí odkaz:
http://arxiv.org/abs/1905.01286
Autor:
Iten, Raban, Reardon-Smith, Oliver, Malvetti, Emanuel, Mondada, Luca, Pauvert, Gabrielle, Redmond, Ethan, Kohli, Ravjot Singh, Colbeck, Roger
We introduce an open source software package UniversalQCompiler written in Mathematica that allows the decomposition of arbitrary quantum operations into a sequence of single-qubit rotations (with arbitrary rotation angles) and controlled-NOT (C-NOT)
Externí odkaz:
http://arxiv.org/abs/1904.01072
Publikováno v:
Phys. Rev. Lett. 124, 010508 (2020)
Despite the success of neural networks at solving concrete physics problems, their use as a general-purpose tool for scientific discovery is still in its infancy. Here, we approach this problem by modelling a neural network architecture after the hum
Externí odkaz:
http://arxiv.org/abs/1807.10300
Autor:
Iten, Raban, Colbeck, Roger
Publikováno v:
Journal of Mathematical Physics 59, 012202 (2018)
A quantum channel from a system $A$ of dimension $d_A$ to a system $B$ of dimension $d_B$ is a completely positive trace-preserving map from complex $d_A\times d_A$ to $d_B\times d_B$ matrices, and the set of all such maps with Kraus rank $r$ has the
Externí odkaz:
http://arxiv.org/abs/1610.02513