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Related papers: Cross-correlations mediated by Majorana bound stat…

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We theoretically investigate electronic transport through a junction where a quantum dot (QD) is tunnel coupled on both sides to semiconductor nanowires with strong spin-orbit interaction and proximity-induced superconductivity. The results…

Superconductivity · Physics 2014-12-09 Guang-Yao Huang , Martin Leijnse , Karsten Flensberg , Hongqi Xu

We propose a route to detect Majorana bound states (MBSs) by coupling a topological superconductor to quantum dots (QDs) in a $pnp$ junction. Here, two MBSs are coherently coupled to electrons on two QDs, which recombine with holes to…

Mesoscale and Nanoscale Physics · Physics 2024-07-18 Lena Bittermann , Fernando Dominguez , Patrik Recher

Majorana bound states (MBSs) nested in a topological nanowire are predicted to manifest nonlocal correlations in the presence of a finite energy splitting between the MBSs. However, the signal of the nonlocal correlations has not yet been…

Mesoscale and Nanoscale Physics · Physics 2016-07-13 Hai-Feng Lu , Hai-Zhou Lu , Shun-Qing Shen

We theoretically study the transport properties in the T-shaped double-quantum-dot structure, by introducing the Majorana bound state (MBS) to couple to the dot in the main channel. It is found that the side-coupled dot governs the effect…

Mesoscale and Nanoscale Physics · Physics 2022-04-15 Wei-Jiang Gong , Yu-Hang Xue , Xiao-Qi Wang , Lian-Lian Zhang , Guang-Yu Yi

In this minireview, we outline the recent experimental and theoretical progress in the creation, characterization and manipulation of Majorana bound states (MBSs) in semiconductor-superconductor (SC) hybrid structures. After an introductory…

Mesoscale and Nanoscale Physics · Physics 2020-07-10 Alexander Schuray , Daniel Frombach , Sunghun Park , Patrik Recher

We investigate electron transport through multiterminal networks hosting Majorana bound states (MBS) in the framework of full counting statistics (FCS). In particular, we apply our general results to T-shaped junctions of two Majorana…

Mesoscale and Nanoscale Physics · Physics 2014-11-26 Luzie Weithofer , Patrik Recher , Thomas L. Schmidt

In this work, we consider a single-level quantum dot (QD) and a Majorana bound state (MBS) placed at the end of a topological superconducting nanowire (TSW). Both are coupled to the continuum and do not have a direct connection between…

Mesoscale and Nanoscale Physics · Physics 2020-03-11 J. P. Ramos-Andrade , P. A. Orellana , E. Vernek

Based on the many-particle-number-state treatment for transport through a pair of Majorana zero modes (MZMs) which are coupled to the leads via two quantum dots, we identify that the reason for zero cross correlation of currents at…

Mesoscale and Nanoscale Physics · Physics 2023-09-26 Wei Feng , Lupei Qin , Xin-Qi Li

Existing studies via shot noise calculation conclude that the cross correlation between the currents in the two leads connected by a pair of Majorana zero modes (MZMs) vanishes when their coupling energy $\epsilon_M\to 0$. Motivated by the…

Quantum Physics · Physics 2023-09-26 Lupei Qin , Wei Feng , Xin-Qi Li

A beam splitter consisting of two normal leads coupled to one end of a topological superconducting nanowire via double quantum dot is investigated. In this geometry, the linear current cross-correlations at zero temperature change signs…

Mesoscale and Nanoscale Physics · Physics 2015-09-16 Zhan Cao , Tie-Feng Fang , Qiao Chen , Hong-Gang Luo

We propose an alternative route to transport experiments for detecting Majorana bound states (MBSs) by combining topological superconductivity with quantum optics in a superconducting $pn$ junction containing a quantum dot (QD). We consider…

Mesoscale and Nanoscale Physics · Physics 2022-12-02 L. Bittermann , C. De Beule , D. Frombach , P. Recher

We introduce the concept of a Majorana molecule, a topological bound state appearing in the geometry of a double quantum dot (QD) structure flanking a topological superconducting nanowire. We demonstrate that, if the Majorana bound states…

Mesoscale and Nanoscale Physics · Physics 2020-09-02 J. E. Sanches , L. S. Ricco , W. N. Mizobata , Y. Marques , M. de Souza , I. A. Shelykh , A. C. Seridonio

We demonstrate that partially overlapping Majorana bound states (MBSs) represent a generic low-energy feature that emerges in non-homogeneous semiconductor nanowires coupled to superconductors in the presence of a Zeeman field. The…

Mesoscale and Nanoscale Physics · Physics 2018-04-09 Christopher Moore , Tudor D. Stanescu , Sumanta Tewari

Topologically protected qubits based on nanostructures hosting Majorana bound states (MBSs) hold great promise for fault-tolerant quantum computing. We study the transport properties of nanowire networks hosting MBSs with a focus on the…

Mesoscale and Nanoscale Physics · Physics 2020-05-20 Johan Ekström , Patrik Recher , Thomas L. Schmidt

Hybrid nanowires combining semiconductor and superconductor materials appear well suited for the creation, detection, and control of Majorana bound states (MBSs). We demonstrate the emergence of MBSs from coalescing Andreev bound states…

Mesoscale and Nanoscale Physics · Physics 2017-01-06 M. T. Deng , S. Vaitiekenas , E. B. Hansen , J. Danon , M. Leijnse , K. Flensberg , J. Nygård , P. Krogstrup , C. M. Marcus

We study the transport properties of a quantum dot-Majorana hybrid system, in which each of paired Majorana bound states is connected to one quantum dot. With the help of non-equilibrium Green's function method, we obtain an exact solution…

Mesoscale and Nanoscale Physics · Physics 2014-11-18 Hai-Feng Lu , Hai-Zhou Lu , Shun-Qing Shen

We investigate transport though normal-superconductor nanowire junctions in the presence of spin-orbit coupling and magnetic field. As the Zeeman field crosses the critical bulk value B_c of the topological transition, a Majorana bound…

Mesoscale and Nanoscale Physics · Physics 2012-11-14 Elsa Prada , Pablo San-Jose , Ramon Aguado

We study charge transport through a topological superconductor with a pair of Majorana end states, coupled to leads via quantum dots with resonant levels. The non-locality of the Majorana bound states opens the possibility of crossed…

Mesoscale and Nanoscale Physics · Physics 2013-09-13 Björn Zocher , Bernd Rosenow

We theoretically consider transport properties of a normal metal (N)- superconducting semiconductor nanowire (S)-normal metal (N) structure (NSN) in the context of the possible existence of Majorana bound states in disordered…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Alejandro M. Lobos , S. Das Sarma

We investigate gradual development of the quasiparticle states in two quantum dots attached to opposite sides of the topological superconducting nanowire, hosting the boundary modes. Specifically, we explore the non-equilibrium…

Mesoscale and Nanoscale Physics · Physics 2025-09-16 R. Taranko , K. Wrześniewski , I. Weymann , T. Domański
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