Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Robert Raussendorf"'
Publikováno v:
PRX Quantum, Vol 5, Iss 3, p 030343 (2024)
A recently introduced classical simulation method for universal quantum computation with magic states operates by repeated sampling from probability functions [M. Zurel et al. PRL 260404 (2020)]. This method is closely related to sampling algorithms
Externí odkaz:
https://doaj.org/article/33bda3ba63ee48f39f9e37633bffb520
Publikováno v:
Quantum, Vol 8, p 1397 (2024)
Measurement-Based Quantum Computation (MBQC) is a model of quantum computation, which uses local measurements instead of unitary gates. Here we explain that the MBQC procedure has a fundamental basis in an underlying gauge theory. This perspective pr
Externí odkaz:
https://doaj.org/article/fc6dcaaf7916482ba961645f51469e10
Publikováno v:
Quantum, Vol 8, p 1323 (2024)
It was recently shown that a hidden variable model can be constructed for universal quantum computation with magic states on qubits. Here we show that this result can be extended, and a hidden variable model can be defined for quantum computation wit
Externí odkaz:
https://doaj.org/article/dc3672f952a74b519a6b11593fbfd548
Publikováno v:
Quantum, Vol 7, p 1215 (2023)
We present a new framework for assessing the power of measurement-based quantum computation (MBQC) on short-range entangled symmetric resource states, in spatial dimension one. It requires fewer assumptions than previously known. The formalism can ha
Externí odkaz:
https://doaj.org/article/9f736eb1e4da4b93aeeef20ba4dc7204
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p L032013 (2022)
Quantum simulation using time evolution in phase-estimation-based quantum algorithms can yield unbiased solutions of classically intractable models. However, long runtimes open such algorithms to decoherence. We show how measurement-based quantum sim
Externí odkaz:
https://doaj.org/article/d26ced4b17de48378b5a60fbcccc1616
Autor:
Paul Herringer, Robert Raussendorf
Publikováno v:
Quantum, Vol 7, p 1041 (2023)
We consider a class of translation-invariant 2D tensor network states with a stabilizer symmetry, which we call stabilizer PEPS. The cluster state, GHZ state, and states in the toric code belong to this class. We investigate the transmission capacity
Externí odkaz:
https://doaj.org/article/43579808143240d8ab790390bd5cd26d
Publikováno v:
Quantum, Vol 7, p 979 (2023)
A web of cohomological facts relates quantum error correction, measurement-based quantum computation, symmetry protected topological order and contextuality. Here we extend this web to quantum computation with magic states. In this computational sche
Externí odkaz:
https://doaj.org/article/680710efbbed4f25b1b319ad5ffc898e
Autor:
Karol Horodecki, Jingfang Zhou, Maciej Stankiewicz, Roberto Salazar, Paweł Horodecki, Robert Raussendorf, Ryszard Horodecki, Ravishankar Ramanathan, Emily Tyhurst
Publikováno v:
New Journal of Physics, Vol 25, Iss 7, p 073003 (2023)
Quantum contextuality is one of the most recognized resources in quantum communication and computing scenarios. We provide a new quantifier of this resource, the rank of contextuality (RC). We define RC as the minimum number of non-contextual behavio
Externí odkaz:
https://doaj.org/article/006b4f6ede2d4705a6b9a80dd9961830
Autor:
Cihan Okay, Robert Raussendorf
Publikováno v:
Quantum, Vol 4, p 217 (2020)
We consider the phenomenon of quantum mechanical contextuality, and specifically parity-based proofs thereof. Mermin’s square and star are representative examples. Part of the information invoked in such contextuality proofs is the commutativity st
Externí odkaz:
https://doaj.org/article/f8de452732c14116b5b56a2a496bbfb7
Autor:
David T. Stephen, Hendrik Poulsen Nautrup, Juani Bermejo-Vega, Jens Eisert, Robert Raussendorf
Publikováno v:
Quantum, Vol 3, p 142 (2019)
Quantum phases of matter are resources for notions of quantum computation. In this work, we establish a new link between concepts of quantum information theory and condensed matter physics by presenting a unified understanding of symmetry-protected t
Externí odkaz:
https://doaj.org/article/18a08402321544ba8b2aef37e71a9d6e