HUN-REN-BME-BCE Quantum Technology Research Group (QTRG)
Hosted by:
Department of Theoretical Physics
Institute of Physics
Faculty of Natural Sciences
Budapest University of Technology and Economics (BME)
Muegyetem rkp. 3, H-1111 Budapest, Hungary
Contact
Group leader: Andras Palyi
Office: BME "F" building, stairway III., ground floor, room 6.
Email: palyi dot andras at ttk dot bme dot hu
News
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2025/04/14 - Great crowd and insightful talks at the World Quantum Day Meetup in Budapest, kindly hosted and sponsored this year by IBM Hungary.
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2025/04/09 - New QTRG manuscript on arXiv, in collaboration with ELTE's Zoltan Gyorgy and Gabor Szechenyi: Limitations of the g-tensor formalism of semiconductor spin qubits.
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2025/04/07 - New QTRG paper, with Miklos Toth as first author and Marton Kormos as last author, is published in Physical Review B as an Editors' Suggestion: Sine-Gordon model at finite temperature: The method of random surfaces.
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2025/03/31 - Two-day ONCHIPS work package meeting at TU Munich in Garching, with participation of Anirban Das, Baksa Kolok, Daniel Varjas, and Andras Palyi.
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2025/03/28 - Talk of Gergo Pinter on Multifold degeneracy points of quantum systems and singularities of matrix varieties, delivered in the HUN-REN Alfred Renyi Institute of Mathematics.
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2025/03/28 - Talk of Curt von Keyserlingk (King's College London) at our department seminar, on particle lifetimes in 1D lattice fermion systems at finite temperature.
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2025/03/21 - Talk of Anirban Das at our department seminar, on the Role of interface hybridization on induced superconductivity in 2D heterostructures.
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2025/03/14 - Talk of Sudipto Das at our department seminar, on the Theory of the Novel Phase of Fractional Quantum Hall States in the Second Landau Level.
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2025/03/13 - Quantum error correction talks from our group, on logical CNOT and on the optimization of the number of measurement rounds, at the DPG SAMOP Spring meeting in Bonn.
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2025/03/10 - Talk of Robert Nemeth (ELTE) at our Quantum Computing Group Meeting, on "Omnidirectional shuttling to avoid valley excitations in Si/SiGe quantum wells".
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2025/03/07 - Talk of Tibor Rakovszky at our department seminar, on "Entanglement, topological order and glassiness in finite temperature quantum phases".
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2025/03/04 - Talk of Adolfo del Campo (Luxemburg) at the Szilard Leo Colloquium, on "Phase transition dynamics: from cosmology to quantum computing".
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2025/02/28 - Talk of Janos Asboth at our department seminar, on "Topological fine structure of an energy band ".
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2025/02/21 - Talk of Frederic Holweck (Belfort-Montbeliard) at our department seminar, on "Contextuality and quantum computing".
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2025/02/14 - Talk of Gergo Thiering (Wigner RCP) at our department seminar, on "Ab-initio theory of orbital and phonon driven relaxation pathways in quantum defects of semiconductors".
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2025/01/29 - Postdoctoral research fellows Dr. Anirban Das, Dr. Solomon Samuel, and Dr. Sudipto Das joined the group.
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2025/01/27 - Izabella Lovas (ETH Zurich) gave a talk at our weekly spin qubit group meeting, on "Quantum phases of matter under non-unitary dynamics", focusing mostly on this work.
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2025/01/21 - Kick-off meeting of our newly established HUN-REN-BME-BCE Quantum Technology Research Group.
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2025/01/20 - Tamas Krivachy (ICFO Barcelona) gave a talk at our weekly spin qubit group meeting, on "Topologically Robust Quantum Network Nonlocality".
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2025/01/09 - Online kick-off meeting of QLSI2. With QTRG's contribution, this Horizon Europe project aims to build quantum computer prototypes based on silicon-based spin qubits.
Group members
Affiliated members:
Associated members:
Publications
With QTRG affiliation:
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Z. Gyorgy, A. Palyi, G. Szechenyi
Limitations of the g-tensor formalism of semiconductor spin qubits
[arXiv]
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M. Toth, J. H. Pixley, D. Szasz-Schagrin, G. Takacs, and M. Kormos
Sine-Gordon model at finite temperature: The method of random surfaces
Phys. Rev. B 111, 155112 (2025) -- Editors' Suggestion, [arXiv]
With QTRG acknowledgment:
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Adam Bacsi, Doru Sticlet, Catalin Pascu Moca, Balazs Dora
Infinite temperature spin dynamics in the asymmetric Hatsugai-Kohmoto model
[arXiv]
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Shu-Tong Zhou, Meng Cheng, Tibor Rakovszky, Curt von Keyserlingk, Tyler D. Ellison
Finite-temperature quantum topological order in three dimensions
[arXiv]
Research funding, 2025 Spring
Our group is funded by the HUN-REN Hungarian Research Network. We also acknowledge funding from the following grants:
- QNL, Quantum Information National Laboratory of Hungary, NKFIH Hungary
- IGNITE, Integrated Germanium Quantum Technology, Horizon Europe
- ONCHIPS, On-Chip Integration of Quantum Electronics and Photonics, Horizon Europe
- OpenSuperQPlus, Open Superconducting Quantum Computers, Horizon Europe
- QLSI2, Initiative for a European Semiconductor-based Large-scale Quantum Computer, Horizon Europe
- Correlations in non-equilibrium quantum field theories and lattice models, OTKA K, 2021-2025
For group members
Funding acknowledgment (updated: 2025/02/28): This work was supported by the HUN-REN Hungarian Research Network through the Supported Research Groups Programme, HUN-REN-BME-BCE Quantum Technology Research Group (TKCS-2024/34).
Affiliation (updated: 2025/04/23) HUN-REN-BME-BCE Quantum Technology Research Group, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
Regular events:
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Quantum Computing Group Meeting, Mondays 14:15-15:30, library.
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Szilard Colloquium, Tuesdays 14:30-15:30, lecture hall F 13.
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Quantum World 2 Reading Seminar, Thursdays 8:30-10:00, seminar room of the FA building.
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Quantum Many-Body Systems Seminar, Thursday 12-14.
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Seminar of the Department of Theoretical Physics, Fridays 10:15-11:15, seminar room of the theory department.
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