A quantum walk in phase space with resonator-assisted double quantum dots

被引：3

作者：

Bian, Zhi-Hao ^{[1
]}

Qin, Hao ^{[1
]}

Zhan, Xiang ^{[1
]}

Li, Jian ^{[1
]}

Xue, Peng ^{[1
]}

机构：

[1] Southeast Univ, Dept Phys, Nanjing 211189, Peoples R China

来源：

CHINESE PHYSICS B | 2016年 / 25卷 / 02期

基金：

中国国家自然科学基金;

关键词：

quantum walks; double quantum dots; EXPERIMENTAL REALIZATION;

D O I：

10.1088/1674-1056/25/2/020307

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We implement a quantum walk in phase space with a new mechanism based on the superconducting resonator-assisted double quantum dots. By analyzing the hybrid system, we obtain the necessary factors implementing a quantum walk in phase space: the walker, coin, coin flipping and conditional phase shift. The coin flipping is implemented by adding a driving field to the resonator. The interaction between the quantum dots and resonator is used to implement conditional phase shift. Furthermore, we show that with different driving fields the quantum walk in phase space exhibits a ballistic behavior over 25 steps and numerically analyze the factors influencing the spreading of the walker in phase space.

引用

页数：5

共 50 条

[41] Quantum phase modulation with acoustic cavities and quantum dots
Imany, Poolad
Wang, Zixuan
DeCrescent, Ryan A.
Boutelle, Robert C.
McDonald, Corey A.
Autry, Travis
Berweger, Samuel
Kabos, Pavel
Nam, Sae Woo
Mirin, Richard P.
Silverman, Kevin L.
OPTICA, 2022, 9 (05): : 501 - 504
[42] Quantum phase gating with semiconductor quantum dots in a microcavity
Feng, M
MODERN PHYSICS LETTERS B, 2004, 18 (23): : 1195 - 1203
[43] Shot noise in ballistic quantum dots with a mixed classical phase space
Sim, HS
Schomerus, H
PHYSICAL REVIEW LETTERS, 2002, 89 (06)
[44] Quantum entanglement of double electrons in two coupled quantum dots
Li, Haiyu
MODERN PHYSICS LETTERS B, 2007, 21 (17): : 1065 - 1075
[45] Quantum Control of Hole Spin Qubits in Double Quantum Dots
Fernandez-Fernandez, D.
Ban, Yue
Platero, G.
PHYSICAL REVIEW APPLIED, 2022, 18 (05)
[46] Quantum-memory-assisted entropic uncertainty and steered quantum coherence in double quantum dots system under thermal equilibrium and decoherence
Zhang, Yanliang
Kang, Guodong
Zhou, Qingping
Fang, Maofa
QUANTUM INFORMATION PROCESSING, 2025, 24 (02)
[47] Quantum measurement and charge density oscillations in double quantum dots
Cruz, H.
Luis, D.
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 2008, 6 : 639 - 644
[48] Quantum dots to double concentric quantum ring structures transition
Bietti, S.
Somaschini, C.
Abbarchi, M.
Koguchi, N.
Sanguinetti, S.
Poliani, E.
Bonfanti, M.
Gurioli, M.
Vinattieri, A.
Kuroda, T.
Mano, T.
Sakoda, S.
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 4, 2009, 6 (04): : 928 - +
[49] Quantum phase transition and underscreened Kondo effect in electron transport through parallel double quantum dots
Ding, Guo-Hui
Ye, Fei
Dong, Bing
JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (45)
[50] Spin filtering and quantum phase transition in double quantum dots attached to spin-polarized leads
Wang, Wei-zhong
NANOTECHNOLOGY, 2011, 22 (20)

← 1 2 3 4 5 →