Zobrazeno 1 - 10
of 428
pro vyhledávání: '"A Asbóth"'
Autor:
Szombathy, Dominik, Valli, Angelo, Moca, Cătălin Paşcu, Asbóth, János, Farkas, Lóránt, Rakovszky, Tibor, Zaránd, Gergely
We study the emergence of complexity in deep random $N$-qubit $T$-gate doped Clifford circuits, as reflected in their spectral properties and in magic generation, characterized by the stabilizer R\'enyi entropy. For pure (undoped) Clifford circuits,
Externí odkaz:
http://arxiv.org/abs/2412.15912
Autor:
Márton, Áron, Asbóth, János K.
Logical qubits can be protected against environmental noise by encoding them into a highly entangled state of many physical qubits and actively intervening in the dynamics with stabilizer measurements. In this work, we numerically optimize the rate o
Externí odkaz:
http://arxiv.org/abs/2408.07529
As current experiments already realize small quantum circuits on error corrected qubits, it is important to fully understand the effect of physical errors on the logical error channels of these fault-tolerant circuits. Here, we investigate a lattice-
Externí odkaz:
http://arxiv.org/abs/2405.05337
Publikováno v:
Phys. Rev. A 110, 012417 (2024)
Quantum error correction is a key challenge for the development of practical quantum computers, a direction in which significant experimental progress has been made in recent years. In solid-state qubits, one of the leading information loss mechanism
Externí odkaz:
http://arxiv.org/abs/2401.04530
A band with a nonzero Chern number cannot be fully localized by weak disorder. There must remain at least one extended state, which ``carries the Chern number.'' Here we show that a trivial band can behave in a similar way. Instead of fully localizin
Externí odkaz:
http://arxiv.org/abs/2312.08436
Publikováno v:
Phys. Rev. B 109, L180202 (2024)
We investigate numerically how onsite disorder affects conduction in the periodically driven Rice-Mele model, a prototypical realization of the Thouless pump. Although the pump is robust against disorder in the fully adiabatic limit, much less is kno
Externí odkaz:
http://arxiv.org/abs/2309.12882
Autor:
Márton, Áron, Asbóth, János K.
Publikováno v:
Quantum 7, 1116 (2023)
We consider the combined effect of readout errors and coherent errors, i.e., deterministic phase rotations, on the surface code. We use a recently developed numerical approach, via a mapping of the physical qubits to Majorana fermions. We show how to
Externí odkaz:
http://arxiv.org/abs/2303.04672
Autor:
Ostahie, Bogdan, Sticlet, Doru, Moca, Cătălin Paşcu, Dóra, Balázs, Werner, Miklós Antal, Asbóth, János K., Zaránd, Gergely
Publikováno v:
Phys. Rev. B 108, 035126 (2023)
Recent experiments demonstrated that single-particle quantum walks can reveal the topological properties of single-particle states. Here, we generalize this picture to the many-body realm by focusing on multiparticle quantum walks of strongly interac
Externí odkaz:
http://arxiv.org/abs/2209.03569
Autor:
Koncz, Mihály, Stirling, Tamás, Hadj Mehdi, Hiba, Méhi, Orsolya, Eszenyi, Bálint, Asbóth, András, Apjok, Gábor, Tóth, Ákos, Orosz, László, Vásárhelyi, Bálint Márk, Ari, Eszter, Daruka, Lejla, Polgár, Tamás Ferenc, Schneider, György, Zalokh, Sif Aldin, Számel, Mónika, Fekete, Gergely, Bohár, Balázs, Nagy Varga, Karolina, Visnyovszki, Ádám, Székely, Edit, Licker, Monica-Sorina, Izmendi, Oana, Costache, Carmen, Gajic, Ina, Lukovic, Bojana, Molnár, Szabolcs, Szőcs-Gazdi, Uzonka Orsolya, Bozai, Csilla, Indreas, Marina, Kristóf, Katalin, Van der Henst, Charles, Breine, Anke, Pál, Csaba, Papp, Balázs, Kintses, Bálint
Publikováno v:
In Cell 17 October 2024 187(21):5901-5918
Publikováno v:
Physical Review B 104 205408 (2021)
We consider two particles hopping on a chain with a contact interaction between them. At strong interaction, there is a molecular bound state separated by a direct gap from a continuous band of atomic states. Introducing weak disorder in the interact
Externí odkaz:
http://arxiv.org/abs/2106.09603