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Rieger D, Günzler S, Spiecker M, Paluch P, Winkel P, Hahn L, Hohmann JK, Bacher A, Wernsdorfer W, Pop IM. Granular aluminium nanojunction fluxonium qubit. Nat Mater 2023; 22:194-199. [PMID: 36482206 DOI: 10.1038/s41563-022-01417-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023]
Abstract
Mesoscopic Josephson junctions, consisting of overlapping superconducting electrodes separated by a nanometre-thin oxide layer, provide a precious source of nonlinearity for superconducting quantum circuits. Here we show that in a fluxonium qubit, the role of the Josephson junction can also be played by a lithographically defined, self-structured granular aluminium nanojunction: a superconductor-insulator-superconductor Josephson junction obtained in a single-layer, zero-angle evaporation. The measured spectrum of the resulting qubit, which we nickname gralmonium, is indistinguishable from that of a standard fluxonium. Remarkably, the lack of a mesoscopic parallel plate capacitor gives rise to an intrinsically large granular aluminium nanojunction charging energy in the range of tens of gigahertz, comparable to its Josephson energy. We measure coherence times in the microsecond range and we observe spontaneous jumps of the value of the Josephson energy on timescales from milliseconds to days, which offers a powerful diagnostics tool for microscopic defects in superconducting materials.
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Affiliation(s)
- D Rieger
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany.
| | - S Günzler
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - M Spiecker
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - P Paluch
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - P Winkel
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - L Hahn
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - J K Hohmann
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - A Bacher
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - W Wernsdorfer
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - I M Pop
- Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany.
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany.
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Laštíkova S, Urda M, Paluch P, Šteruský M, Mazal J. EP08.02-087 A 28-Years Old Pregnant Woman Diagnosed as ALK-Rearrangement Lung Adenocarcinoma With Multiple Brain Metastasis - Case Report. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nishiyama Y, Malon M, Potrzebowski MJ, Paluch P, Amoureux JP. Corrigendum to "Accurate NMR determination of C-H or N-H distances for unlabeled molecules" [Solid State Nuclear Magnetic Resonance 73 (2016) 15-21]. Solid State Nucl Magn Reson 2017; 87:143. [PMID: 28870468 DOI: 10.1016/j.ssnmr.2017.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Y Nishiyama
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - M Malon
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - M J Potrzebowski
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-363 Lodz, Poland
| | - P Paluch
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-363 Lodz, Poland
| | - J P Amoureux
- Physics Department & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; UCCS, University Lille North of France, Villeneuve d'Ascq 59652, France.
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Paluch P, Trébosc J, Nishiyama Y, Potrzebowski MJ, Malon M, Amoureux JP. Corrigendum to "Theoretical study of CP-VC: A simple, robust and accurate MAS NMR method for analysis of dipolar C-H interactions under rotation speeds faster than ca. 60kHz" [J. Magn. Reson. 252 (2015) 67-77]. J Magn Reson 2017; 283:61. [PMID: 28881234 DOI: 10.1016/j.jmr.2017.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- P Paluch
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Lodz 90-363, Poland
| | - J Trébosc
- UCCS, University Lille North of France, Villeneuve d'Ascq 59652, France
| | - Y Nishiyama
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - M J Potrzebowski
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Lodz 90-363, Poland
| | - M Malon
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - J P Amoureux
- UCCS, University Lille North of France, Villeneuve d'Ascq 59652, France; Physics Department, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China.
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Śniechowska J, Paluch P, Potrzebowski MJ. Structure and dynamics processes in free-base chlorins controlled by chemical modifications of macroring and aryl groups in meso-positions. RSC Adv 2017. [DOI: 10.1039/c7ra02217d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The synthesis, detailed structural characterization and analysis of molecular motion for unsymmetrical pyrrolidine-fused chlorins employing NMR, UV spectroscopy and DFT theoretical calculations are presented.
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Affiliation(s)
- J. Śniechowska
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz
- Poland
| | - P. Paluch
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz
- Poland
| | - M. J. Potrzebowski
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz
- Poland
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Nishiyama Y, Malon M, Potrzebowski MJ, Paluch P, Amoureux JP. Accurate NMR determination of C-H or N-H distances for unlabeled molecules. Solid State Nucl Magn Reson 2016; 73:15-21. [PMID: 26169913 DOI: 10.1016/j.ssnmr.2015.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 06/19/2015] [Accepted: 06/28/2015] [Indexed: 06/04/2023]
Abstract
Cross-Polarization with Variable Contact-time (CP-VC) is very efficient at ultra-fast MAS (νR ≥ 60 kHz) to measure accurately the dipolar interactions corresponding to C-H or N-H short distances, which are very useful for resonance assignment and for analysis of dynamics. Here, we demonstrate the CP-VC experiment with (1)H detection. In the case of C-H distances, we compare the CP-VC signals with direct ((13)C) and indirect ((1)H) detection and find that the latter allows a S/N gain of ca. 2.5, which means a gain of ca. 6 in experimental time. The main powerful characteristics of CP-VC methods are related to the ultra-fast spinning speed and to the fact that most of the time only the value of the dipolar peak separation has to be used to obtain the information. As a result, CP-VC methods are: (i) easy to set up and to use, and robust with respect to (ii) rf-inhomogeneity thus allowing the use of full rotor samples, (iii) rf mismatch, and (iv) offsets and chemical shift anisotropies. It must be noted that the CP-VC 2D method with indirect (1)H detection requires the proton resolution and is thus mainly applicable to small or perdeuterated molecules. We also show that an analysis of the dynamics can even be performed, with a reasonable experimental time, on unlabeled samples with (13)C or even (15)N natural abundance.
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Affiliation(s)
- Y Nishiyama
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - M Malon
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - M J Potrzebowski
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-363 Lodz, Poland
| | - P Paluch
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-363 Lodz, Poland
| | - J P Amoureux
- Physics Department & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China; UCCS, University Lille North of France, Villeneuve d'Ascq 59652, France.
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Paluch P, Trébosc J, Nishiyama Y, Potrzebowski MJ, Malon M, Amoureux JP. Theoretical study of CP-VC: a simple, robust and accurate MAS NMR method for analysis of dipolar C-H interactions under rotation speeds faster than ca. 60 kHz. J Magn Reson 2015; 252:67-77. [PMID: 25662360 DOI: 10.1016/j.jmr.2015.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/24/2014] [Accepted: 01/05/2015] [Indexed: 06/04/2023]
Abstract
We show that Cross-Polarization with Variable Contact-time (CP-VC) allows an accurate determination of C-H dipolar interactions, which permits an easy detailed analysis of bond lengths and local dynamics, e.g. in biomolecules. The method presents a large dipolar scaling factor of 1/√2, leading to a better determination of dipolar interactions, especially for long C-H distances, and it allows the observation of very small local details such as those related either to CH(2) three spin systems, or even to hydrogen bonds. CP-VC is very simple to set up and very robust with respect to most experimental parameters, such as: rf-offsets, chemical-shift anisotropies, imperfect Hartmann-Hahn setting, and rf-inhomogeneity. The only required condition is the use of a sufficiently fast MAS spinning speed of at least ca. 60 kHz.
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Affiliation(s)
- P Paluch
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Lodz 90-363, Poland
| | - J Trébosc
- UCCS, University Lille North of France, Villeneuve d'Ascq 59652, France
| | - Y Nishiyama
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - M J Potrzebowski
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, Lodz 90-363, Poland
| | - M Malon
- JEOL RESONANCE Inc., Musashino, Akishima, Tokyo 196-8558, Japan; RIKEN CLST-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - J P Amoureux
- UCCS, University Lille North of France, Villeneuve d'Ascq 59652, France; Physics Department, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China.
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Sierant M, Kazmierski S, Rozanski A, Paluch P, Bienias U, Miksa BJ. Nanocapsules for 5-fluorouracil delivery decorated with a poly(2-ethylhexyl methacrylate-co-7-(4-trifluoromethyl)coumarin acrylamide) cross-linked wall. NEW J CHEM 2015. [DOI: 10.1039/c4nj02053g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanocapsules with reverse cross-linked polymer walls containing coumarin moieties are capable of encapsulating 5-fluorouracil and accomplishing a comprehensive strategy in a drug delivery system.
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Affiliation(s)
- M. Sierant
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90-363 Lodz
- Poland
| | - S. Kazmierski
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90-363 Lodz
- Poland
| | - A. Rozanski
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90-363 Lodz
- Poland
| | - P. Paluch
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90-363 Lodz
- Poland
| | - U. Bienias
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90-363 Lodz
- Poland
| | - B. J. Miksa
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90-363 Lodz
- Poland
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Deredas D, Albrecht Ł, Maniukiewicz W, Wojciechowski J, Wolf WM, Paluch P, Janecki T, Różalski M, Krajewska U, Janecka A, Krawczyk H. Three-component reaction of 3-(diethoxyphosphoryl)coumarin, enolizable ketones and primary amines: Simple, stereoselective synthesis of benzo[1,3]oxazocine skeletons. RSC Adv 2013. [DOI: 10.1039/c3ra40184g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Paluch P, Vasakova M, Sterclova M, Mandakova P. PAR-2 expression by BALF epithelial cells and BALF cytokine profiles in patients with different interstitial lung diseases. Pneumologie 2012. [DOI: 10.1055/s-0032-1329820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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