Spin-blockade and state lifetimes of many-hole spin states in silicon quantum dots

被引：0

作者：

Kondo, Chihiro ^{[1
]}

Mizokuchi, Raisei ^{[1
]}

Sakamoto, Go ^{[1
]}

Tsuchiya, Ryuta ^{[2
]}

Mine, Toshiyuki ^{[2
]}

Hisamoto, Digh ^{[2
]}

Mizuno, Hiroyuki ^{[2
]}

Yoneda, Jun ^{[3
,4
]}

Kodera, Tetsuo ^{[1
]}

机构：

[1] Inst Sci Tokyo, Dept Elect & Elect Engn, Meguro Ku, Tokyo 1528552, Japan

[2] Hitachi Ltd, Res & Dev Grp, Kokubunji, Tokyo 1858601, Japan

[3] Inst Sci Tokyo, Acad Super Smart Soc, Meguro Ku, Tokyo 1528552, Japan

[4] Univ Tokyo, Dept Adv Mat Sci, Kashiwa, Chiba 2778561, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2025年 / 64卷 / 01期

关键词：

quantum dot; semiconductor; spin qubit; spin blockade; relaxation time; hole spin; OPERATION; READOUT; QUBIT;

D O I：

10.35848/1347-4065/ad9a71

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Hole spins in silicon quantum dots (QDs) are a promising candidate for fault-tolerant quantum computing. To achieve the high-fidelity readout and high coherence required for fault tolerance, the evaluation of spin-blockade and state lifetimes is important because they can limit the qubit fidelities. In this study, we characterize these two figures of merit of many-hole qubits in silicon QDs. We report a spin-blockade lifetime of 5.1 mu s, which is comparable with the values reported previously, and a spin-state lifetime of 0.91 ms, which is longer than the one measured in a few-hole silicon QD in a previous study. We furthermore provide insights into a many-hole spin state based on the estimated tunneling rate ratio.

引用

页数：5

共 50 条

[1] Spin-blockade and state lifetimes of many-hole spin states in silicon quantum dots
Kondo, Chihiro
Mizokuchi, Raisei
Sakamoto, Go
Tsuchiya, Ryuta
Mine, Toshiyuki
Hisamoto, Digh
Mizuno, Hiroyuki
Yoneda, Jun
Kodera, Tetsuo
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 1
[2] Probing hole spin transport of disorder quantum dots via Pauli spin-blockade in standard silicon transistors
Hillier, Joseph
Ono, Keiji
Ibukuro, Kouta
Liu, Fayong
Li, Zuo
Husain Khaled, Muhammad
Nicholas Rutt, Harvey
Tomita, Isao
Tsuchiya, Yoshishige
Ishibashi, Koji
Saito, Shinichi
NANOTECHNOLOGY, 2021, 32 (26)
[3] Spin-blockade effects in spherical quantum dots
Pandey, RK
Harbola, MK
Singh, VA
PHYSICAL REVIEW B, 2006, 73 (16)
[4] Spin-Blockade Spectroscopy of Si/Si-Ge Quantum Dots
Jones, A. M.
Pritchett, E. J.
Chen, E. H.
Keating, T. E.
Andrews, R. W.
Blumoff, J. Z.
De Lorenzo, L. A.
Eng, K.
Ha, S. D.
Kiselev, A. A.
Meenehan, S. M.
Merkel, S. T.
Wright, J. A.
Edge, L. F.
Ross, R. S.
Rakher, M. T.
Borselli, M. G.
Hunter, A.
PHYSICAL REVIEW APPLIED, 2019, 12 (01):
[5] Transport properties in spherical quantum dots: Orbital-blockade and spin-blockade effects
Destefani, CF
Marques, GE
Trallero-Giner, C
PHYSICAL REVIEW B, 2002, 65 (23): : 1 - 11
[6] Electronic-nuclear dynamics in double quantum dots in the spin-blockade regime
Inoshita, T
Tarucha, S
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 22 (1-3): : 422 - 425
[7] Anisotropic Pauli spin blockade in hole quantum dots
Brauns, Matthias
Ridderbos, Joost
Li, Ang
Bakkers, Erik P. A. M.
van der Wiel, Wilfred G.
Zwanenburg, Floris A.
PHYSICAL REVIEW B, 2016, 94 (04)
[8] Dynamical spin-blockade in a quantum dot with paramagnetic leads
Cottet, A
Belzig, W
EUROPHYSICS LETTERS, 2004, 66 (03): : 405 - 411
[9] Pauli spin-blockade in an InAs nanowire double quantum dot
Pfund, A.
Shorubalko, I.
Leturcq, R.
Ensslin, K.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (05): : 1279 - 1281
[10] Electronic states and spin configurations in silicon quantum dots
Hada, Y
Eto, M
TOWARDS THE CONTROLLABLE QUANTUM STATES: MESOSCOPIC SUPERCONDUCTIVITY AND SPINTRONICS, 2003, : 467 - 472

← 1 2 3 4 5 →