BrainMap

Mr. Levente Máthé

Ph.D.

R2 - Recognised Researcher - INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Researcher

Web of Science ResearcherID: https://publons.com/researcher/2980556/levente-mathe/

Expertise & keywords

Towards a Theory of Non-Hermitian Superconductivity: Mean-field Approximations, Impurity Effects, and Quantum Processing Call name: P 5.1 - Proiecte de Cercetare Exploratorie - Competiția 2023
PN-IV-P1-PCE-2023-0987 2025 - 2027

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation:

Project website: https://www.itim-cj.ro/pncdi/nhsuper/

Abstract:

Our project explores the field of non-Hermitian physics, with a focus on superconductivity in fermionic systems. The goal is to develop a general theory of non-Hermitian superconductivity, and investigate the effects of impurities in non-Hermitian superconductors. By treating superconductors as open quantum systems and employing Lindblad equations, we aim to derive non-Hermitian superconductor Hamiltonians and understand their dynamics under the interplay of dissipation, Coulomb interactions, and electron-phonon coupling. Finally, the project aims to contribute to quantum technologies by proposing the simulation of non-Hermitian systems in circuit quantum electrodynamics. In particular, it aims to realize, manipulate, and measure multi-level superconducting qubits implementations for higher-order exceptional points.

The project has the potential to advance research in non-Hermitian systems, provide insights into the behavior of impurity-induced states, and contribute to the development of quantum technologies that harness dissipation as a resource.

Romanian National Quantum Communication Infrastructure Call name: PNCDI IV, P 5.8 - SP 5.8.2 - Europa Digitală
PN-IV-P8-8.2-EUD-2024-0036 2024 - 2025

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation:

Project website: https://www.ronaqci.upb.ro/

Abstract:

RoNaQCI proposes the deployment of a 1500km+ QCI network including 6 metropolitan networks in the cities of Bucharest, Iasi, Cluj-

Napoca, Timisoara, Craiova and Constanta, with 36 QKD links spanning Romania and connecting 10 universities, 5 research institutes,

5 public bodies, 3 data centers and a medical clinic, and with future links planned for quantum Internet interconnecting with neighbors.

The project will be implemented by a consortium lead by UPB, the largest technical university in Romania and with key infrastructure

support from RoEduNet who manages the 6000km+ Romanian network for education and research. The consortium benefits from multi-

disciplinary expertise of 30 partners: 12 universities, 7 research institutes, 3 national agencies, 3 companies and 5 relevant stakeholders. It

includes both Romanian participants to QuantERA and 10/14 partners from all Romanian quantum communication projects (QUTECH-

RO, QSTRAT, QUANTEC). RoNaQCI will provide both upskilling and technology testbeds, establishing a national network of quantum

communication technology (QCT) hubs. Through them, RoNaQCI will produce a national QCT training and education standard. This

includes the development of a standard QCT certification and organizing workshops and training sessions to deliver a large number

of trained users in academia, public bodies and industry including internet service providers. RoNaQCI will develop and contribute to

open source software for QCI monitoring and exploitation including security certificates, VPN and SSH. RoNaQCI software will be

used for QCI testing, for 15 metropolitan advanced use cases on medical, financial and big data, public administration, research and

special communication and for 2 national use cases on education and special communication. RoNaQCI is developed in partnership with

national institutions such as the Romanian Naval Authority, the National Ministry of Education and the National Ministry of Defense.

Superconducting phases and quantum transport in two-dimensional transition metal dichalcogenides Call name: P 1 - SP 1.1 - Proiecte de cercetare pentru stimularea tinerelor echipe independente
PN-III-P1-1.1-TE-2019-0423 2020 - 2022

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://www.itim-cj.ro/pncdi/te98/

Abstract:

Two-dimensional transition metal dichalcogenides (2D TMDs) are promising materials for both fundamental research and applications. In this project, we propose theoretical investigations of their remarkable properties in the superconducting phase as they are integrated into nanodevices or used to engineer Majorana bound states.

The 2D TMDs show a strong spin-orbit coupling which favors out of plane spins. This generates robust superconducting phases to in-plane magnetic fields since Cooper pairs are formed by electrons with out-of-plane spins. These properties may be harnessed in a variety of ways. In this project, we will focus on three relevant objectives:

1. Model and study quantum transport in planar Josephson junctions built from TMDs. Study the response to a magnetic field and gate voltage variation to obtain the nanodevice properties.

2. Study the coupling between vertically stacked superconducting TMDs. This is a promising realization of a Josephson junction, where weak van der Waals forces between the monolayers are the substitute for the usual metal or insulator between the superconductor leads. A relative twist of the 2D TMDs alters the properties of the Josephson junction and its effect remains an open question also interesting for fundamental research.

3. TMDs are a promising platform for topological superconductivity. Majorana bound states may be realized by deposition of magnetic atoms or molecules on a 2D TMD superconducting substrate. We investigate this physics in TMDs where at low temperature there is a coexistence of superconductivity and charge density wave order. The effect of the latter on topological superconductivity has not, at this date, been analyzed.

Developing quantum information and quantum technologies in Romania Call name: P 1 - SP 1.2 - Proiecte complexe realizate in consorții CDI
PN-III-P1-1.2-PCCDI-2017-0338 2018 - 2021

Role in this project: Key expert

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); INSTITUTUL NATIONAL DE CERCETARE- DEZVOLTARE PENTRU MICROTEHNOLOGIE - IMT BUCURESTI INCD (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Project website: https://roqnet.ro/qutech-ro/

Abstract:

Quantum information and quantum technologies are at the forefront of the second quantum revolution: quantum computers, quantum cryptography, quantum communication, quantum imaging/sensing etc. Quantum technologies are strategically important for the economic development -- the European Union recently announced a 1 Billion Euro Quantum Technologies Flagship (QT Flagship) program. Compared to other European countries, unfortunately these fields are seriously underdeveloped in Romania.

The project aims to develop quantum information and quantum technologies in Romania, such that the Romanian community will actively participate in the QT Flagship. The project director (R.I.) is National Quantum Coordinator for Romania in the coordination and support action preparing the European QT Flagship.

The project has three strategic objectives:

(i) research: developing the research capacity in quantum information and quantum technologies;

(ii) education: teaching and training PhD students, postdocs and researchers to work in these fields;

(iii) dissemination: disseminate and transfer the results to society in order to stimulate scientific and economic progress.

Each partner will be responsible for a project from the common research agenda:

1. IFIN-HH: developing theoretical and computational methods for quantum information and quantum technologies (Q-INFO)

2. INFLPR: developing the integrated quantum photonics platform (Q-CHIP)

3. IMT: quantum information with optical vortices (Q-VORTEX)

4. UPB: developing two research laboratories and a quantum source (Q-LAB)

(a) quantum computation lab: cloud programming the IBM-Q quantum computer;

(b) applied quantum information lab.

5. INCDTIM: developing theoretical models for quantum computation with Majorana fermions (Q-FERMI)

The project will result in the formation of the Romanian Quantum Network and the participation of Romania to the European QT Flagship.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects