Zobrazeno 1 - 10
of 1 769
pro vyhledávání: '"P. Allcock"'
Autor:
Quinn, A., Gregory, G. J., Moore, I. D., Brudney, S., Metzner, J., Ritchie, E. R., O'Reilly, J., Wineland, D. J., Allcock, D. T. C.
We present metastable qubits in trapped ions as potential erasure qubits for which most fundamental algorithm errors can be converted into erasures. We first implement an erasure conversion scheme which enables us to detect $\sim$94% of spontaneous R
Externí odkaz:
http://arxiv.org/abs/2411.12727
Autor:
Xu, Moucheng, Zhou, Yukun, Goodwin-Allcock, Tobias, Firoozabadi, Kimia, Jacob, Joseph, Alexander, Daniel C., Slator, Paddy J.
We introduce and demonstrate a new paradigm for quantitative parameter mapping in MRI. Parameter mapping techniques, such as diffusion MRI and quantitative MRI, have the potential to robustly and repeatably measure biologically-relevant tissue maps t
Externí odkaz:
http://arxiv.org/abs/2411.10772
Autor:
Lonigro, N., Doyle, R. S., Verhaegh, K., Lipschultz, B., Moulton, D., Ryan, P., Allcock, J. S., Bowman, C., Harrison, J., Silburn, S., Theiler, C., Wijkamp, T. A., Team, the WPTE, Team, MAST-U
2D electron density profiles obtained from coherence imaging spectroscopy in different MAST-U divertor conditions are compared. The data includes variations of strike point position, core electron density, and heating power. The improved performance
Externí odkaz:
http://arxiv.org/abs/2410.00818
Dynamical Lie algebras (DLAs) have emerged as a valuable tool in the study of parameterized quantum circuits, helping to characterize both their expressiveness and trainability. In particular, the absence or presence of barren plateaus (BPs) -- flat
Externí odkaz:
http://arxiv.org/abs/2407.12587
Autor:
Löschnauer, C. M., Toba, J. Mosca, Hughes, A. C., King, S. A., Weber, M. A., Srinivas, R., Matt, R., Nourshargh, R., Allcock, D. T. C., Ballance, C. J., Matthiesen, C., Malinowski, M., Harty, T. P.
The central challenge of quantum computing is implementing high-fidelity quantum gates at scale. However, many existing approaches to qubit control suffer from a scale-performance trade-off, impeding progress towards the creation of useful devices. H
Externí odkaz:
http://arxiv.org/abs/2407.07694
Bell sampling is a simple yet powerful measurement primitive that has recently attracted a lot of attention, and has proven to be a valuable tool in studying stabiliser states. Unfortunately, however, it is known that Bell sampling fails when used on
Externí odkaz:
http://arxiv.org/abs/2405.06357
Autor:
Lonigro, N., Doyle, R., Allcock, J. S., Lipschultz, B., Verhaegh, K., Bowman, C., Brida, D., Harrison, J., Myatra, O., Silburn, S., Theiler, C., Wijkamp, T. A., Team, MAST-U, Team, the EUROfusion Tokamak Exploitation
2D profiles of electron density and neutral temperature are inferred from multi-delay Coherence Imaging Spectroscopy data of divertor plasmas using a non-linear inversion technique. The inference is based on imaging the spectral line-broadening of Ba
Externí odkaz:
http://arxiv.org/abs/2404.12021
Autor:
Metzner, J., Quinn, A., Brudney, S., Moore, I. D., Burd, S. C., Wineland, D. J., Allcock, D. T. C
We experimentally implement circuits of one and two mode operations on two motional modes of a single trapped ion. This is achieved by implementing the required displacement, squeezing, two-mode squeezing, and beamsplitter operations using oscillatin
Externí odkaz:
http://arxiv.org/abs/2312.10847
Autor:
Allcock, Daniel, Basak, Tathagata
The "monstrous proposal" of the first author is that the quotient of a certain 13-dimensional complex hyperbolic braid group, by the relations that its natural generators have order 2, is the bimonster" (M x M)semidirect Z/2. Here M is the monster si
Externí odkaz:
http://arxiv.org/abs/2309.00148
Publikováno v:
Quantum 8, 1530 (2024)
We explore the power of the unbounded Fan-Out gate and the Global Tunable gates generated by Ising-type Hamiltonians in constructing constant-depth quantum circuits, with particular attention to quantum memory devices. We propose two types of constan
Externí odkaz:
http://arxiv.org/abs/2308.08539