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Quantum computation and simulating quantum systems

Overview

Quantum computing and quantum communication is currently at the stage of turning fundamental science into applications. Recently, news were aired about having achieved quantum advantage in experiments. Usefulness of this quantum advantage is, however, still disputed, which clearly shows that quantum processors with increasing numbers of qubits are still merely proofs of the concept because of the high noise level. Competing architectures (superconducting nanocircuits, trapped ions, optically integrated, adiabatic quantum computers etc.) all have their advantages and disadvantages. Our aim is to develop protocols and detection methods in evaluating and benchmarking these NISQ quantum computing resources. We plan to adapt and implement quantum algorithms on available architectures, which can be used to solve problems of industrial relevance. The development of quantum computing also affects classical information technology. It is inspiring new classical and hybrid solutions and algorithms, which we plan to investigate. Concerning quantum communication, the development of communication protocols which are efficient in noisy channels is a fundamental task, which we will explore. Finally, we search for new methods of classical cryptography that help resist possible attacks by high-performance quantum computers (post-quantum cryptography).

Projects

Development of quantum algorithms and quantum computational architectures, assessment of quantum information resources
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Numerical simulations using tensor factorization of compound systems and quantum chemical applications
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Optimization algorithms, machine learning and artificial intelligence in quantum computation
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Postquantum cryptography
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Quantum computer emulation laboratory
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Software technology for quantum computing
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Publications

2021-09-22
IEEE Access 9: 131658 - 131671

Evaluation of Quantum Annealer Performance via the Massive MIMO Problem

Tabi Zsolt
Marosits Ádám
Kallus Zsófia
Vaderna Péter
Gódor István
Zoltán Zimborás
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2021-08-27
Nature Photonics 15: 641–642

Photons walk on fractal graphs

Tamás Kiss
Igor Jex
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2021-08-05
New Journal of Physics 23: 083008

Observation of the dynamics of an ergodic quantum protocol in a photonic realization

Dengke Qu
Orsolya Kálmán
Gaoyan Zhu
Lei Xiao
Kunkun Wang
Tamás Kiss
Peng Xue
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Research fields

  • Realization of a quantum communication network
  • Elementary building blocks of quantum information
  • Quantum computation and simulating quantum systems

Contact us (Wigner RCP)

1121 Budapest,
Konkoly-Thege Miklós út 29-33.
Secretary:
+36-1-392- 2512
Media contact:
+36-30-487-9869
@email

©2021 Quantum Information National Laboratory