Brisk Rydberg Ions for Scalable Quantum Processors

Project Information

BRISQ

Grant agreement ID: 101046968

DOI

10.3030/101046968

Project closed

EC signature date 8 March 2022

Start date 1 October 2022

End date 30 September 2025

Funded under

• The European Innovation Council (EIC)

Total cost

€ 3 368 158,75

EU contribution

€ 3 368 158,75

Coordinated by

STOCKHOLMS UNIVERSITET
Sweden

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Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Deliverables

Demonstrators, pilots, prototypes (1)

Rydberg-compatible 1D- and 2D-prerunner ion traps for SU and UIBK

Rydberg-compatible 1D- and 2D-prerunner ion traps are fabricated by IFAT for SU and UIBK

Documents, reports (4)

Plan for dissemination and exploitation including communication activities

Deliverable is the plan for dissemination and exploitation including communication activities.

Accurate measurement of non-thermal phonon distribution of a trapped ion

We will report on accurate measurement of non-thermal phonon distribution of a trapped ion (SU, TCPA)

Report on comparison of entangling Rydberg gate protocols in one-dimensional ion crystal

Report document will be delivered on comparison of entangling Rydberg gate protocols in one-dimensional ion crystal.

Data management plan

Websites, patent fillings, videos etc. (1)

Project website and project logo

Deliverable is a functional project website and project logo.

Publications

Peer reviewed articles (48)

Quantum trajectories of dissipative time crystals

Author(s): Albert Cabot; Leah Sophie Muhle; Federico Carollo; Igor Lesanovsky
Published in: Physical Review A, 2023, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2212.06460

Characterization of high-fidelity Raman qubit gates

Author(s): Stancho G. Stanchev, Nikolay V. Vitanov
Published in: Physical Review A, Issue 109, 2024, ISSN 2469-9926
Publisher: American Physical Society (APS)
DOI: 10.1103/PHYSREVA.109.012605

Motional-state analysis of a trapped ion by ultranarrowband composite pulses

Author(s): Marion Mallweger, Milena Guevara-Bertsch, Boyan T. Torosov, Robin Thomm, Natalia Kuk, Harry Parke, Christan F. Roos, Gerard Higgins, Markus Hennrich, Nikolay V. Vitanov
Published in: Physical Review A, Issue 110, 2024, ISSN 2469-9926
Publisher: American Physical Society (APS)
DOI: 10.48550/ARXIV.2402.10041

Stochastic Thermodynamics at the Quantum-Classical Boundary: A Self-Consistent Framework Based on Adiabatic-Response Theory

Author(s): Joshua Eglinton; Federico Carollo; Igor Lesanovsky; Kay Brandner
Published in: Quantum, 2024, ISSN 2521-327X
Publisher: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften (Association for the Promotion of Open Access Publishing in Quantum Sciences)
DOI: 10.48550/ARXIV.2404.10118

Continuous Sensing and Parameter Estimation with the Boundary Time Crystal

Author(s): Albert Cabot; Federico Carollo; Igor Lesanovsky
Published in: Physical Review Letters, 2024, ISSN 1079-7114
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2307.13277

Robust, fast, and high-fidelity composite single-qubit gates for superconducting transmon qubits

Author(s): Hristo G. Tonchev, Boyan T. Torosov, Nikolay V. Vitanov
Published in: Physical Review A, Issue 112, 2025, ISSN 2469-9926
Publisher: American Physical Society (APS)
DOI: 10.1103/S7H1-LQC1

Demonstration of Fault-Tolerant Steane Quantum Error Correction

Author(s): Postler, Lukas; Butt, Friederike; Pogorelov, Ivan; Marciniak, Christian D.; Heußen, Sascha; Blatt, Rainer; Schindler, Philipp; Rispler, Manuel; Müller, Markus; Monz, Thomas
Published in: PRX Quantum, 2024, ISSN 2691-3399
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2312.09745

Demonstration of Two-Dimensional Connectivity for a Scalable Error-Corrected Ion-Trap Quantum Processor Architecture

Author(s): M. Valentini, M. W. van Mourik, F. Butt, J. Wahl, M. Dietl, M. Pfeifer, F. Anmasser, Y. Colombe, C. Rössler, P. C. Holz, R. Blatt, A. Bermudez, M. Müller, T. Monz, P. Schindler
Published in: Physical Review X, Issue 15, 2025, ISSN 2160-3308
Publisher: American Physical Society (APS)
DOI: 10.48550/ARXIV.2406.02406

Coherent Spin-Phonon Scattering in Facilitated Rydberg Lattices

Author(s): Matteo Magoni; Chris Nill; Igor Lesanovsky
Published in: Physical Review Letters, 2024, ISSN 1079-7114
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2311.00064

Describing Trotterized Time Evolutions on Noisy Quantum Computers via Static Effective Lindbladians

Author(s): Fratus, Keith R.; Bark, Kirsten; Vogt, Nicolas; Leppäkangas, Juha; Zanker, Sebastian; Marthaler, Michael; Reiner, Jan-Michael
Published in: Quantum, Issue 9, 2025, ISSN 2521-327X
Publisher: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
DOI: 10.48550/ARXIV.2210.11371

Entangled time-crystal phase in an open quantum light-matter system

Author(s): Robert Mattes; Igor Lesanovsky; Federico Carollo
Published in: Physical Review A, 2023, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2303.07725

Ultrahigh-fidelity composite quantum phase gates

Author(s): Hayk L. Gevorgyan, Nikolay V. Vitanov
Published in: Physical Review A, Issue 109, 2024, ISSN 2469-9926
Publisher: American Physical Society (APS)
DOI: 10.1103/PHYSREVA.109.052625

Thermodynamics of coupled time crystals with an application to energy storage

Author(s): Paulo J. P. Souza, Albert Cabot Martorell, Gabriele De Chiara, Mauro Antezza, Igor Lesanovsky, Federico Carollo
Published in: Quantum Science and Technology, 2025, ISSN 2058-9565
Publisher: IOP Publishing
DOI: 10.48550/ARXIV.2411.04836

Coherent spin-phonon scattering in facilitated Rydberg lattices

Author(s): M. Magoni, C. Nill, I. Lesanovsky
Published in: arXiv, Issue arXiv.2311.00064, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arXiv.2311.00064

Spatial confinement of atomic excitation by composite pulses in a doped solid

Author(s): Markus Stabel, Niels Joseph, Nikolay V. Vitanov, Thomas Halfmann
Published in: Physical Review A, Issue 110, 2024, ISSN 2469-9926
Publisher: American Physical Society (APS)
DOI: 10.1103/PHYSREVA.110.023526

Universal and nonuniversal probability laws in Markovian open quantum dynamics subject to generalized reset processes

Author(s): Federico Carollo, Igor Lesanovsky, Juan P. Garrahan
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arXiv.2310.06981

Measurement-Free Fault-Tolerant Quantum Error Correction in Near-Term Devices

Author(s): Heußen, Sascha; Locher, David F.; Müller, Markus
Published in: PRX Quantum, 2024, ISSN 2691-3399
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2307.13296

A Rydberg ion flywheel for quantum work storage

Author(s): Martins, Wilson S.; Carollo, Federico; Li, Weibin; Brandner, Kay; Lesanovsky, Igor
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arxiv.2304.05252

A quantum fluctuation description of charge qubits

Author(s): Benatti, F.; Carollo, F.; Floreanini, R.; Narnhofer, H.; Valiera, F.
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arxiv.2304.13351

Experimental fault-tolerant code switching

Author(s): Ivan Pogorelov; Friederike Butt; Lukas Postler; Christian D. Marciniak; Philipp Schindler; Markus Müller; Thomas Monz
Published in: Nature Physics, 2025, ISSN 1745-2473
Publisher: Nature Publishing Group
DOI: 10.48550/ARXIV.2403.13732

Accurate optimal quantum error correction thresholds from coherent information

Author(s): Luis Colmenarez, Ze-Min Huang, Sebastian Diehl, Markus Müller
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arXiv.2312.06664

Non-Gaussian dynamics of quantum fluctuations and mean-field limit in open quantum central spin systems

Author(s): Carollo, Federico
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arxiv.2305.15547

Nonequilibrium thermodynamics and power generation in open quantum optomechanical systems

Author(s): Paulo J. Paulino; Igor Lesanovsky; Federico Carollo
Published in: Physical Review A, Issue 108, 2023, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/arxiv.2212.10194

Rydberg-ion flywheel for quantum work storage

Author(s): Wilson S. Martins; Federico Carollo; Weibin Li; Kay Brandner; Igor Lesanovsky
Published in: Physical Review A, 2023, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2304.05252

Defying Conventional Wisdom in Spectroscopy: Power Narrowing on IBM Quantum

Author(s): Ivo S. Mihov, Nikolay V. Vitanov
Published in: Physical Review Letters, Issue 132, 2025, ISSN 0031-9007
Publisher: American Physical Society (APS)
DOI: 10.1103/PHYSREVLETT.132.020802

Dissipative quantum many-body dynamics in (1+1)D quantum cellular automata and quantum neural networks

Author(s): Mario Boneberg; Federico Carollo; Igor Lesanovsky
Published in: New Journal of Physics, Issue 25, 2023, ISSN 1367-2630
Publisher: IOP Publishing
DOI: 10.48550/arxiv.2304.11209

Two-qubit gate protocols with microwave-dressed Rydberg ions in a linear Paul trap

Author(s): Joseph W P Wilkinson, Katrin Bolsmann, Thiago L M Guedes, Markus Müller, Igor Lesanovsky
Published in: New Journal of Physics, Issue 27, 2025, ISSN 1367-2630
Publisher: IOP Publishing
DOI: 10.48550/ARXIV.2412.13699

Fault-Tolerant Code Switching Protocols for Near-Term Quantum Processors

Author(s): Butt, Friederike; Heußen, Sascha; Rispler, Manuel; Müller, Markus
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arxiv.2306.17686

Thermodynamics of Quantum Trajectories on a Quantum Computer

Author(s): Marcel Cech; Igor Lesanovsky; Federico Carollo
Published in: Physical Review Letters, Issue 131, 2023, ISSN 1079-7114
Publisher: American Physical Society
DOI: 10.48550/arxiv.2301.07124

Stochastic resetting in discrete-time quantum dynamics: steady states and correlations in few-qubit systems

Author(s): Sascha Wald; Louie Hong Yao; Thierry Platini; Chris Hooley; Federico Carollo
Published in: Quantum, 2025, ISSN 2521-327X
Publisher: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften (Association for the Promotion of Open Access Publishing in Quantum Sciences)
DOI: 10.48550/ARXIV.2410.11497

Fault-Tolerant Code-Switching Protocols for Near-Term Quantum Processors

Author(s): Butt, Friederike; Heußen, Sascha; Rispler, Manuel; Müller, Markus
Published in: PRX Quantum, 2024, ISSN 2691-3399
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2306.17686

Strategies for a practical advantage of fault-tolerant circuit design in noisy trapped-ion quantum computers

Author(s): Sascha Heußen; Lukas Postler; Manuel Rispler; Ivan Pogorelov; Christian D. Marciniak; Thomas Monz; Philipp Schindler; Markus Müller
Published in: Physical Review A, Issue 107, 2023, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/arXiv.2301.10017

Impact of micromotion and field-axis misalignment on the excitation of Rydberg states of ions in a Paul trap

Author(s): Wilson S. Martins; Joseph W. P. Wilkinson; Markus Hennrich; Igor Lesanovsky
Published in: Physical Review A, 2025, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2410.24047

Taming Thiemann’s Hamiltonian constraint in canonical loop quantum gravity: Reversibility, eigenstates, and graph-change analysis

Author(s): T. L. M. Guedes; G. A. Mena Marugán; M. Müller; F. Vidotto
Published in: Physical Review D, 2025, ISSN 2470-0029
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2412.20272

Multipass quantum process tomography

Author(s): Stancho G. Stanchev, Nikolay V. Vitanov
Published in: Scientific Reports, Issue 14, 2024, ISSN 2045-2322
Publisher: Springer Science and Business Media LLC
DOI: 10.1038/S41598-024-68353-3

Measurement-free fault-tolerant quantum error correction in near-term devices

Author(s): Heußen, Sascha; Locher, David F.; Müller, Markus
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arxiv.2307.13296

Quantum thermodynamics of boundary time-crystals

Author(s): Federico Carollo; Igor Lesanovsky; Mauro Antezza; Gabriele De Chiara
Published in: Quantum Science and Technology, 2024, ISSN 2058-9565
Publisher: IOP Publishing
DOI: 10.48550/ARXIV.2306.07330

Creation of coherent superpositions of Raman qubits by using dissipation

Author(s): Andon A. Rangelov, Boyan T. Torosov, Benedetto Militello, Nikolay V. Vitanov
Published in: Physical Review A, Issue 110, 2024, ISSN 2469-9926
Publisher: American Physical Society (APS)
DOI: 10.1103/PHYSREVA.110.042622

Spectral signatures of vibronic coupling in trapped atomic Rydberg systems

Author(s): J. W. P. Wilkinson, W. Li, I. Lesanovsky
Published in: arXiv, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arXiv.2311.16998

A quantum fluctuation description of charge qubits

Author(s): F Benatti, F Carollo, R Floreanini, H Narnhofer, F Valiera
Published in: New Journal of Physics, Issue 26, 2024, ISSN 1367-2630
Publisher: IOP Publishing
DOI: 10.48550/ARXIV.2304.13351

Qubit dynamics driven by smooth pulses of finite duration

Author(s): Ivo S. Mihov; Nikolay V. Vitanov
Published in: Physical Review A, 2024, ISSN 2469-9934
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2404.12236

Non-Gaussian Dynamics of Quantum Fluctuations and Mean-Field Limit in Open Quantum Central Spin Systems

Author(s): Federico Carollo
Published in: Physical Review Letters, 2023, ISSN 1079-7114
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2305.15547

5. Demonstration of fault-tolerant Steane quantum error correction

Author(s): Lukas Postler, Friederike Butt, Ivan Pogorelov, Christian D. Marciniak, Sascha Heußen, Rainer Blatt, Philipp Schindler, Manuel Rispler, Markus Müller, Thomas Monz
Published in: arXiv, Issue arXiv:2312.09745, 2023, ISSN 2331-8422
Publisher: arXiv
DOI: 10.48550/arXiv.2312.09745

Lindblad-like quantum tomography for non-Markovian quantum dynamical maps

Author(s): S. Varona; M. Müller; A. Bermudez
Published in: npj Quantum Information, 2025, ISSN 2056-6387
Publisher: Nature Publishing Group
DOI: 10.48550/ARXIV.2403.19799

Tunable broadband polarization retarders

Author(s): Hristina S. Hristova, Svetoslav S. Ivanov, Nikolay V. Vitanov, Andon A. Rangelov
Published in: Optics Letters, Issue 49, 2024, ISSN 0146-9592
Publisher: Optica Publishing Group
DOI: 10.1364/OL.528760

Single-Shot Measurements of Phonon Number States Using the Autler-Townes Effect

Author(s): Marion Mallweger, Murilo Henrique de Oliveira, Robin Thomm, Harry Parke, Natalia Kuk, Gerard Higgins, Romain Bachelard, Celso Jorge Villas-Boas, and Markus Hennrich
Published in: Physical Review Letters, Issue 131, 2023, ISSN 1079-7114
Publisher: American Physical Society
DOI: 10.48550/arXiv.2302.03553

Inferring interpretable dynamical generators of local quantum observables from projective measurements through machine learning

Author(s): Giovanni Cemin; Francesco Carnazza; Sabine Andergassen; Georg Martius; Federico Carollo; Igor Lesanovsky
Published in: Physical Review Applied, 2024, ISSN 2331-7019
Publisher: American Physical Society
DOI: 10.48550/ARXIV.2306.03935

Molecular Dynamics in Rydberg Tweezer Arrays: Spin-Phonon Entanglement and Jahn-Teller Effect

Author(s): Matteo Magoni; Radhika Joshi; Igor Lesanovsky
Published in: Physical Review Letters, Issue 131, 2023, ISSN 1079-7114
Publisher: American Physical Society
DOI: 10.48550/arxiv.2303.08861

Thesis and dissertations (3)

Experimental design for trapped Rydberg ions in cryogenic environment

Author(s): Natalia Kuk
Published in: 2025
Publisher: Stockholm University

Modeling Dynamics of Classical and Quantum Systems Using Machine Learning Techniques

Author(s): Carnazza, Francesco
Published in: 2024
Publisher: Universität Tübingen
DOI: 10.15496/PUBLIKATION-103184

Simulating Vibronic Dynamics with Trapped Rydberg Ions

Author(s): Marion Mallweger
Published in: 2025
Publisher: Stockholm University