Critical Current O-pi Transition in Designed Josephson Quantum Dot Junctions

H.Ingerslev Jorgensen; T.Novotny; K.Grove-Rasmussen

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Critical Current O-pi Transition in Designed Josephson Quantum Dot Junctions

机译：设计约瑟夫森量子点结中的临界电流O-pi跃迁

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We report on quantum dot based Josephson junctions designed specifically for measuring the supercurrent.From high-accuracy fitting of the current-voltage characteristics,we determine the full magnitude of the supercurrent (critical current).Strong gate modulation of the critical current is observed through several consecutive Coulomb blockade oscillations.The critical current crosses zero close to,but not at,resonance due to the so-called 0-pi transition in agreement with a simple theoretical model.

机译：我们报告了专门为测量超电流而设计的基于量子点的约瑟夫逊结。通过对电流-电压特性的高精度拟合，我们确定了超电流（临界电流）的全幅值。由于所谓的0-pi跃迁，与简单的理论模型相一致，临界电流越过零，接近但不谐振。

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《Nano letters》 |2007年第8期|共5页
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H.Ingerslev Jorgensen; T.Novotny; K.Grove-Rasmussen;
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1. Critical Current O-pi Transition in Designed Josephson Quantum Dot Junctions [J] . H.Ingerslev Jorgensen, T.Novotny, K.Grove-Rasmussen Nano letters . 2007,第8期

机译：设计约瑟夫森量子点结中的临界电流O-pi跃迁
2. Signatures of nonlocal Cooper-pair transport and of a singlet-triplet transition in the critical current of a double-quantum-dot Josephson junction [J] . B. Probst, F. Dominguez, A. Schroer, Physical review. B, Condensed Matter And Materals Physics . 2016,第15期

机译：双量子点约瑟夫森结的临界电流中非局部库珀对迁移和单重态-三重态跃迁的签名。
3. Signatures of nonlocal Cooper-pair transport and of a singlet-triplet transition in the critical current of a double-quantum-dot Josephson junction [J] . Probst B., Dominguez F., Schroer A., Physical review, B . 2016,第15期

机译：双量子点约瑟夫森结的临界电流中非局部库珀对迁移和单重态-三重态跃迁的签名。
4. STUDY OF DECOHERENCE TIME OF ELECTRONIC STATES IN QUANTUM DOTS, JOSEPHSON JUNCTIONS AND FRACTIONAL QUANTUM HALL EFFECT "PSEUDO-SPIN" QUANTUM COMPUTING DEVICES [C] . MASANORI SUGAHARA, SERGEI KRUCHININ, NIKOLAI N. BOGOLUBOV NATO advanced research workshop on new trends in superconductivity . 2002

机译：Quantum Dots，Josephson结和分数量子霍尔效应“伪旋转”量子计算装置的电子状态脱机时间研究
5. Low frequency critical current noise and two level system defects in Josephson junctions. [D] . Nugroho, Christopher Daniel. 2015

机译：约瑟夫逊结中的低频临界电流噪声和二级系统缺陷。
6. Robust entanglement of an asymmetric quantum dot molecular system in a Josephson junction [O] . E. Afsaneh, M. Bagheri Harouni 2020

机译：Josephson交汇处的不对称量子点分子系统的鲁棒纠缠
7. Critical Current 0-$\pi$ Transition in Designed Josephson Quantum Dot Junctions [O] . Jørgensen, H. Ingerslev, Novotný, T., Grove-Rasmussen, K., 2007

机译：临界电流0 - $ \ pi $设计的约瑟夫森量子点的转换结

Critical Current O-pi Transition in Designed Josephson Quantum Dot Junctions

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