Physical Properties of Low-Dimensional Systems: A Theoretical Study on Quantum Dots, Nanowires and Graphene...

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Levente Máthé

Physical Properties of Low-Dimensional Systems

A Theoretical Study on Quantum Dots, Nanowires and Graphene

Levente Máthé

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English

Springer International Publishing AG
01 September 2025

Light (optics); Quantum physics (quantum mechanics & quantum field theory); Mechanical engineering; Other technologies & applied sciences

Series: NanoScience and Technology

This book provides an in-depth theoretical exploration of quantum transport and optical properties in nanodevices, focusing on quantum dots, topological superconducting nanowires, and graphene. It is designed for graduate students and researchers seeking to understand these systems and their implications for advancing nanophotonic and nanoelectronic technologies.

Beginning with foundational concepts in quantum transport, the book covers key phenomena such as the Coulomb blockade, the Kondo effect, and the physics of Majorana fermions and Majorana bound states. A review of graphene’s electronic properties and the optical characteristics of quantum dots is also included, establishing a basis for the more advanced topics that follow.

The book explores a nanojunction model where a quantum dot is integrated into a semiconducting-superconducting heterostructure that hosts Majorana bound states. The study investigates Majorana-induced phonon-assisted quantum tunneling in topological superconducting nanowires under magnetic flux. This model offers valuable insights for future experiments aimed at detecting Majorana bound states, with implications for topological quantum computing.

Additionally, the book explores quantum transport in a system where a semiconductor quantum dot is embedded between monolayer graphene leads. Applying an external magnetic field enables spin-polarized transport, providing an ideal platform for studying many-body quantum phenomena such as the Kondo effect. Using nonequilibrium Green’s function formalism, this section highlights how graphene’s electronic properties can drive next-generation nanoelectronic devices.

Beyond transport, the book also examines the optical properties of quantum dots, focusing on their linear and nonlinear characteristics. Perturbation theory is employed to study absorption coefficients and refractive index changes in two-level quantum dot systems, with potential applications in optoelectronics and photonics.

Throughout, complex mathematical treatments are presented in an accessible manner, ensuring that even readers with a foundational understanding of nanophysics can engage with the material. This book serves as a valuable resource for researchers and students working in the fields of nanophysics, nanoelectronics, and quantum device research. It deepens theoretical understanding of these systems but also offers practical insights into their experimental realization and technological potential.

By: Levente Máthé
Imprint: Springer International Publishing AG
Country of Publication: Switzerland
Dimensions: Height: 235mm, Width: 155mm,
ISBN: 9783031916014
ISBN 10: 3031916018
Series: NanoScience and Technology
Pages: 145
Publication Date: 01 September 2025
Audience: Professional and scholarly , College/higher education , Undergraduate , Further / Higher Education
Format: Hardback
Publisher's Status: Active

Dr. Levente Máthé is a researcher at the National Institute for Research and Development of Isotopic and Molecular Technologies in Cluj-Napoca, Romania. He earned his BSc in Engineering Physics in 2014 and an MSc in Solid State Physics in 2016, both from Babeș-Bolyai University, Cluj-Napoca. In 2023, he completed his Ph.D. in Physics at the same institution. Dr. Máthé's research focuses on the theoretical investigation of transport processes in mesoscopic systems, with a particular interest in quantum dots, graphene, and Majorana bound states. His work explores the influence of electron-electron and electron-phonon interactions on these systems, as well as the optical properties of quantum dot-based nanostructures. His findings have been published in several international scientific journals and presented at prominent conferences, earning him recognition and multiple nominations at prestigious events. Dr. Máthé's research contributes significantly to the field of quantum transport and nanophotonics, providing valuable insights for the future development of quantum technologies.