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Valleytronics in 2D materials - primarily graphene and transition metal dichalcogenides is rooted in the existence of valley flavor but extends far out to the rich dimension of local physics, as reviewed, extensively studied and…

Mesoscale and Nanoscale Physics · Physics 2022-10-06 Feng-Wu Chen , Zheng-Han Huang , Yu-Shu G. Wu

Three-dimensional confinement allows semiconductor quantum dots (QDs) to exhibit size-tunable electronic and optical properties that enable a wide range of opto-electronic applications from displays, solar cells and bio-medical imaging to…

Mesoscale and Nanoscale Physics · Physics 2017-07-21 Guohua Wei , David A. Czaplewski , Erik J. Lenferink , Teodor K. Stanev , Il Woong Jung , Nathaniel P. Stern

Quantum dots (QDs) have emerged as promising nanomaterials with unique optical and physical properties, making them highly attractive for various applications in biomedicine. This review provides a comprehensive overview of the types, modes…

Atomic-scale control of light-matter interactions represent the ultimate frontier for many applications in photonics and quantum technology. Two-dimensional semiconductors, including transition metal dichalcogenides, are a promising…

Mesoscale and Nanoscale Physics · Physics 2024-08-22 John M. Woods , Saroj B. Chand , Enrique Mejia , Takashi Taniguchi , Kenji Watanabe , Johannes Flick , Gabriele Grosso

Quantum computers require technologies that offer both sufficient control over coherent quantum phenomena and minimal spurious interactions with the environment. We show, that photons confined to photonic crystals, and in particular to…

Quantum Physics · Physics 2009-11-10 Dimitris G. Angelakis , Marcelo Franca Santos , Vassilis Yannopapas , Artur Ekert

Quantum Computation and Quantum Information are continuously growing research areas which are based on nature and resources of quantum mechanics, as superposition and entanglement. In its gate array version, the use of convenient and…

Quantum Physics · Physics 2015-10-07 Francisco Delgado

Layered metal chalcogenide materials provide a versatile platform to investigate emergent phenomena and two-dimensional (2D) superconductivity at/near the atomically thin limit. In particular, gate-induced interfacial superconductivity…

Atomically thin group-VIB transition metal dichalcogenides (TMDs) have recently emerged as a new class of two-dimensional (2D) semiconductors with extraordinary properties including the direct band gap in the visible frequency range, the…

Mesoscale and Nanoscale Physics · Physics 2015-12-08 Gui-Bin Liu , Di Xiao , Yugui Yao , Xiaodong Xu , Wang Yao

Since its discovery in the last century, quantum entanglement has challenged some of our most cherished classical views, such as locality and reality. Today, the second quantum revolution is in full swing and promises to revolutionize areas…

Quantum Physics · Physics 2020-07-15 Manuel Erhard , Mario Krenn , Anton Zeilinger

We present the density matrix approach for theoretical description of an asymmetric double quantum dot(QD)system.The results show that the properties of gain,absorption and dispersion of the double QD system ,the population of the state…

Quantum Physics · Physics 2024-03-20 Shun-Cai Zhao , Zheng-Dong Liu

Two-dimensional (2D) materials are particularly attractive to build the channel of next-generation field-effect transistors (FETs) with gate lengths below 10-15 nm. Because the 2D technology has not yet reached the same level of maturity as…

Mesoscale and Nanoscale Physics · Physics 2023-10-30 Mathieu Luisier , Cedric Klinkert , Sara Fiore , Jonathan Backman , Youseung Lee , Christian Stieger , Áron Szabó

Quantum walks represent paradigmatic quantum evolutions, enabling powerful applications in the context of topological physics and quantum computation. They have been implemented in diverse photonic architectures, but the realization of a…

Quantum defects are atomic defects in materials that provide resources to construct quantum information devices such as single-photon emitters (SPEs) and spin qubits. Recently, two-dimensional (2D) materials gained prominence as a host of…

Computational Physics · Physics 2024-10-03 Hosung Seo , Viktor Ivády , Yuan Ping

Two types of optically manipulated quantum electronic devices are considered: a quantum dot and a finite periodic molecular chain, with the period doubled under resonance optical excitation. The stability of the working regimes of the…

Quantum Physics · Physics 2007-05-23 I. Antoniou , B. Pavlov , A. Yafyasov

Atoms deposited on two-dimensional (2D) electronic materials, such as graphene, can exhibit unconventional many-body correlations, not accessible in other settings. All of these are driven by van der Waals forces: between the atoms…

Mesoscale and Nanoscale Physics · Physics 2022-01-13 Adrian Del Maestro , Carlos Wexler , Juan M. Vanegas , Taras Lakoba , Valeri N. Kotov

The metallic tip of a scanning force microscope operated at 300 mK is used to locally induce a potential in a fully controllable double quantum dot defined via local anodic oxidation in a GaAs/AlGaAs heterostructure. Using scanning gate…

Mesoscale and Nanoscale Physics · Physics 2011-06-20 Magdalena Huefner , Bruno Kueng , Stephan Schnez , Klaus Ensslin , Thomas Ihn , Matthias Reinwald , Werner Wegscheider

We present gate-controlled single, double, and triple dot operation in electrostatically gapped bilayer graphene. Thanks to the recent advancements in sample fabrication, which include the encapsulation of bilayer graphene in hexagonal…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Luca Banszerus , Benedikt Frohn , Alexander Epping , Daniel Neumaier , Kenji Watanabe , Takashi Taniguchi , Christoph Stampfer

We studied the dynamics of a pair of single-electron double quantum dots (DQD) under longitudinal and transverse static magnetic fields and time-dependent harmonic modulation of their interaction couplings. We propose to modulate the tunnel…

Mesoscale and Nanoscale Physics · Physics 2026-02-12 Alejandro D. Bendersky , Sergio S. Gomez , Rodolfo H. Romero

We study the electronic properties of dual-gated electron-hole bilayers in which the two layers are separated by a perfectly opaque tunnel barrier. Combining an electrostatic and thermodynamic analysis with mean-field theory estimates of…

Mesoscale and Nanoscale Physics · Physics 2020-09-09 Yongxin Zeng , A. H. MacDonald

We demonstrate a mechanism for magnetoresistance oscillations in insulating states of two-dimensional (2D) materials arising from the interaction of the 2D layer and proximal graphite gates. We study a series of devices based on different…

Mesoscale and Nanoscale Physics · Physics 2021-12-22 Jiacheng Zhu , Tingxin Li , Andrea F. Young , Jie Shan , Kin Fai Mak
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