output
20192026
most citedFast universal quantum control above the fault-tolerance threshold in silicon

505 citations

Showing 2023 · cond-mat.mes-hallShow all

8 papers · 2 filters

cond-mat.mes-hall2023★ 34 cited

Rapid single-shot parity spin readout in a silicon double quantum dot with fidelity exceeding 99 %

Kenta Takeda, Akito Noiri, Takashi Nakajima +5

Silicon-based spin qubits offer a potential pathway toward realizing a scalable quantum computer owing to their compatibility with semiconductor manufacturing technologies. Recent…

cond-mat.mes-hall2023★ 1 cited

Floquet systems with continuous dynamical symmetries: characterization, time-dependent Noether charge, and solvability

Yukio Kaneko, Tatsuhiko N. Ikeda

We study quantum Floquet (periodically-driven) systems having continuous dynamical symmetry (CDS) consisting of a time translation and a unitary transformation on the Hilbert space…

cond-mat.mes-hall2023

Dynamical nuclear spin polarization in a quantum dot with an electron spin driven by electric dipole spin resonance

Peter Stano, Takashi Nakajima, Akito Noiri +2

We analyze the polarization of nuclear spins in a quantum dot induced by a single-electron spin that is electrically driven to perform coherent Rabi oscillations. We derive the ass…

cond-mat.mes-hall2023★ 48 cited

Josephson diode effect derived from short-range coherent coupling

Sadashige Matsuo, Takaya Imoto, Tomohiro Yokoyama +6

Superconducting devices with broken time-reversal and spatial-inversion symmetries can exhibit novel superconducting phenomena. The observation of superconducting diode effects, wh…

cond-mat.mes-hall2023★ 28 cited

Engineering of anomalous Josephson effect in coherently coupled Josephson junctions

Sadashige Matsuo, Takaya Imoto, Tomohiro Yokoyama +6

A Josephson junction (JJ) is a key device in the development of superconducting circuits, wherein a supercurrent in the JJ is controlled by the phase difference between the two sup…

cond-mat.mes-hall2023★ 2 cited

Phonon-mediated spin dynamics in a two-electron double quantum dot under a phonon temperature gradient

Kazuyuki Kuroyama, Sadashige Matsuo, Seigo Tarucha +1

We have theoretically studied phonon-mediated spin-flip processes of electrons in a GaAs double quantum dot (DQD) holding two spins, under a phonon temperature gradient over the DQ…

cond-mat.mes-hall2023★ 32 cited

Blueprint for quantum computing using electrons on helium

Erika Kawakami, Jiabao Chen, Mónica Benito +1

We present a blueprint for building a fault-tolerant quantum computer using the spin states of electrons on the surface of liquid helium. We propose to use ferromagnetic micropilla…

cond-mat.mes-hall2023★ 42 cited

Spatial noise correlations beyond nearest-neighbor in Si/SiGe spin qubits

Juan S. Rojas-Arias, Akito Noiri, Peter Stano +8

We detect correlations in qubit-energy fluctuations of non-neighboring qubits defined in isotopically purified Si/SiGe quantum dots. At low frequencies (where the noise is stronges…