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pro vyhledávání: '"A Pichler"'
The advent of digital neutral-atom quantum computers relies on the development of fast and robust protocols for high-fidelity quantum operations. In this work, we introduce a novel scheme for entangling gates using four atomic levels per atom: a grou
Externí odkaz:
http://arxiv.org/abs/2411.05073
Autor:
Bombieri, Lisa, Zeng, Zhongda, Tricarico, Roberto, Lin, Rui, Notarnicola, Simone, Cain, Madelyn, Lukin, Mikhail D., Pichler, Hannes
We study the quantum dynamics of the encoding scheme proposed in [Nguyen et al., PRX Quantum 4, 010316 (2023)], which encodes optimization problems on graphs with arbitrary connectivity into Rydberg atom arrays. Here, a graph vertex is represented by
Externí odkaz:
http://arxiv.org/abs/2411.04645
Autor:
Lechner, Johannes M. A., Marabotti, Pietro, Shi, Lei, Pichler, Thomas, Casari, Carlo Spartaco, Heeg, Sebastian
Carbyne, an infinite linear chain of carbon atoms, is the truly one-dimensional allotrope of carbon. While ideal carbyne and its fundamental properties have remained elusive, carbyne-like materials like carbyne chains confined inside carbon nanotubes
Externí odkaz:
http://arxiv.org/abs/2410.14820
Fractional quantum Hall states are the most prominent example of states with topological order, hosting excitations with fractionalized charge. Recent experiments in twisted $\text{MoTe}_2$ and graphene-based heterostructures provide evidence of frac
Externí odkaz:
http://arxiv.org/abs/2410.07319
Autor:
Unzog, Martin, Tal, Alexey, Melo, Pedro, Senga, Ryosuke, Suenaga, Kazu, Pichler, Thomas, Kresse, Georg
We investigate the relationship between the K-edge fine structure of isolated single-wall carbon nanotubes (SWCNTs) and the Van Hove singularities (VHSs) in the conduction band density of states. To this end, we model X-ray absorption spectra of SWCN
Externí odkaz:
http://arxiv.org/abs/2409.17619
The Russian invasion of Ukraine on February 24, 2022 entailed the threat of a drastic and sudden reduction of natural gas supply to the European Union. This paper presents a techno-economic analysis of the consequences of a sudden gas supply shock to
Externí odkaz:
http://arxiv.org/abs/2409.07981
We present SBTrust, a logical framework designed to formalize decision trust. Our logic integrates a doxastic modality with a novel non-monotonic conditional operator that establishes a positive support relation between statements, and is closely rel
Externí odkaz:
http://arxiv.org/abs/2409.00666
Autor:
Ott, Robert, Zache, Torsten V., Maskara, Nishad, Lukin, Mikhail D., Zoller, Peter, Pichler, Hannes
Topologically ordered quantum matter exhibits intriguing long-range patterns of entanglement, which reveal themselves in subsystem entropies. However, measuring such entropies, which can be used to certify topological order, on large partitions is ch
Externí odkaz:
http://arxiv.org/abs/2408.12645
The set of answers to a query may be very large, potentially overwhelming users when presented with the entire set. In such cases, presenting only a small subset of the answers to the user may be preferable. A natural requirement for this subset is t
Externí odkaz:
http://arxiv.org/abs/2408.01657
Database systems are often confronted with queries that join many tables but ultimately only output comparatively small aggregate information. Despite all advances in query optimisation, the explosion of intermediate results as opposed to a much smal
Externí odkaz:
http://arxiv.org/abs/2406.17076