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pro vyhledávání: '"Müller, Markus P."'
Bosonic quantum error correction codes encode logical qubits in the Hilbert space of one or multiple harmonic oscillators. A prominent class of bosonic codes are Gottesman-Kitaev-Preskill (GKP) codes of which implementations have been demonstrated wi
Externí odkaz:
http://arxiv.org/abs/2408.14251
A central ingredient in fault-tolerant quantum algorithms is the initialization of a logical state for a given quantum error-correcting code from a set of noisy qubits. A scheme that has demonstrated promising results for small code instances that ar
Externí odkaz:
http://arxiv.org/abs/2408.11894
Autor:
de la Fuente, Julio C. Magdalena, Old, Josias, Townsend-Teague, Alex, Rispler, Manuel, Eisert, Jens, Müller, Markus
Analyzing and developing new quantum error-correcting schemes is one of the most prominent tasks in quantum computing research. In such efforts, introducing time dynamics explicitly in both analysis and design of error-correcting protocols constitute
Externí odkaz:
http://arxiv.org/abs/2407.08566
Autor:
Valentini, Marco, van Mourik, Martin W., Butt, Friederike, Wahl, Jakob, Dietl, Matthias, Pfeifer, Michael, Anmasser, Fabian, Colombe, Yves, Rössler, Clemens, Holz, Philip, Blatt, Rainer, Müller, Markus, Monz, Thomas, Schindler, Philipp
A major hurdle for building a large-scale quantum computer is to scale up the number of qubits while maintaining connectivity between them. In trapped-ion devices, this connectivity can be provided by physically moving subregisters consisting of a fe
Externí odkaz:
http://arxiv.org/abs/2406.02406
A major challenge in performing quantum error correction (QEC) is implementing reliable measurements and conditional feed-forward operations. In quantum computing platforms supporting unconditional qubit resets, or a constant supply of fresh qubits,
Externí odkaz:
http://arxiv.org/abs/2404.11663
We introduce Lindblad-like quantum tomography (L$\ell$QT) as a quantum characterization technique of time-correlated noise in quantum information processors. This approach enables the estimation of time-local master equations, including their possibl
Externí odkaz:
http://arxiv.org/abs/2403.19799
Autor:
Pogorelov, Ivan, Butt, Friederike, Postler, Lukas, Marciniak, Christian D., Schindler, Philipp, Müller, Markus, Monz, Thomas
Quantum error correction is a crucial tool for mitigating hardware errors in quantum computers by encoding logical information into multiple physical qubits. However, no single error-correcting code allows for an intrinsically fault-tolerant implemen
Externí odkaz:
http://arxiv.org/abs/2403.13732
Characterizing the dynamics of quantum systems is a central task for the development of quantum information processors (QIPs). It serves to benchmark different devices, learn about their specific noise, and plan the next hardware upgrades. However, t
Externí odkaz:
http://arxiv.org/abs/2403.07462
The realization of large-scale quantum computers requires not only quantum error correction (QEC) but also fault-tolerant operations to handle errors that propagate into harmful errors. Recently, flag-based protocols have been introduced that use anc
Externí odkaz:
http://arxiv.org/abs/2402.17761
Autor:
Jones, Caroline L., Mueller, Markus P.
There has been a surge of recent interest in the Wigner's friend paradox, sparking several novel thought experiments and no-go theorems. The main narrative has been that Wigner's friend highlights a counterintuitive feature that is unique to quantum
Externí odkaz:
http://arxiv.org/abs/2402.08727