By Professor Julian Berengut

Journal articles

Berengut JC; Dzuba VA; Flambaum VV; King JA; Kozlov MG; Murphy MT; Webb JK, 2009, 'Searching for space-time variation of the fine structure constant using QSO spectra: overview and future prospects', Proceedings of the International Astronomical Union, 5, pp. 304 - 304, http://dx.doi.org/10.1017/s1743921310009440

Flambaum V; Berengut JC, 2009, 'Space-time variation of coupling constants and fundamental masses', International Journal of Modern Physics A, 24, pp. 3342 - 3353, http://dx.doi.org/10.1142/S0217751X0904693X

Griffin D; Ballance C; Mitnik D; Berengut JC, 2008, 'Dirac R-matrix calculations of electron-impact excitation of neon-like krypton', Journal of Physics B - Atomic Molecular and Optical Physics, 41, pp. 215201 - 215210

Berengut JC; Loch SD; Pindzola MS; Ballance C; Griffin D; Fogle M; Bannister ME, 2008, 'Electron-impact ionization of B+', Physical Review A, 78, pp. 012704, http://dx.doi.org/10.1103/PhysRevA.78.012704

Berengut JC; Flambaum V; Kozlov MG, 2008, 'Isotope shift calculations in Ti II', Journal of Physics B - Atomic Molecular and Optical Physics, 41, pp. 235702 - 235707

Pindzola MS; Robicheaux F; Loch SD; Berengut JC; Colgan J; Foster M; Griffin DC; Balance CP; Badnell NR; Witthoeft MC; Schultz DR; Minami T, 2007, 'Time-dependent close-coupling calculations of atomic and molecular collision processes', Journal of Physics Conference Series, 88, http://dx.doi.org/10.1088/1742-6596/88/1/012012

Berengut JC; Loch SD; Pindzola MS; Ballance C; Griffin D, 2007, 'Electron-impact ionization of the boron atom', Physical Review A, 76, pp. 042704, http://dx.doi.org/10.1103/PhysRevA.76.042704

Berengut JC; Loch SD; Ballance CP; Pindzola MS, 2007, 'Electron-impact ionization of the metastable excited states of Li+', Journal of Physics B - Atomic Molecular and Optical Physics, 40, pp. 1331 - 1336, http://dx.doi.org/10.1088/0953-4075/40/7/002

Pindzola MS; Robicheaux F; Loch SD; Berengut JC; Topcu T; Colgan J; Foster M; Griffin D; Ballance C; Schultz DR; Minami T; Badnell NR; Witthoeft MC; Plante DR; Mitnik D; Ludlow JA; Kleiman U, 2007, 'The time-dependent close-coupling method for atomic and molecular collision processes', Journal of Physics B - Atomic Molecular and Optical Physics, 40, pp. R39 - R60, http://dx.doi.org/10.1088/0953-4075/40/7/R01

Berengut JC; Flambaum V; Kozlov MG, 2006, 'Calculation of isotope shifts and relativistic shifts in CI, CII, CIII, and CIV', Physical Review A, 73, pp. 12504 - 12516, http://dx.doi.org/10.1103/PhysRevA.73.012504

Berengut JC; Flambaum V; Kozlov MG, 2005, 'Calculation of relativistic and isotope shifts in MgI', Physical Review A, 72, pp. 44501 - 44504

Berengut JC; Dzuba VA; Flambaum VV; Marchenko MV, 2004, 'α dependence of transition frequencies for some ions of Ti, Mn, Na, C, and O and the search for variation of the fine-structure constant', Physical Review A Atomic Molecular and Optical Physics, 70, pp. 1 - 64101, http://dx.doi.org/10.1103/PhysRevA.70.064101

Berengut JC; Dzuba VA; Flambaum VV; Kozlov MG, 2004, 'Configuration-interaction calculation for the isotope shift in Mg I', Physical Review A Atomic Molecular and Optical Physics, 69, pp. 1 - 44102, http://dx.doi.org/10.1103/PhysRevA.69.044102

Berengut JC; Dzuba VA; Flambaum V; Marchenko M, 2004, 'alpha dependence of transition frequencies for some ions of Ti, Mn, Na,C, and O and the search for variation of the fine-structure constant', Physical Review A, 70, pp. 641011 - 641014

Kozlov MG; Korol V; Berengut JC; Dzuba VA; Flambaum V, 2004, 'Space-time variation of the fine-structure constant and evolution of isotope abundances', Physical Review A, 70, pp. 621081 - 621086

Berengut JC; Dzuba VA; Flambaum VV, 2003, 'Isotope-shift calculations for atoms with one valence electron', Physical Review A Atomic Molecular and Optical Physics, 68, pp. 225021 - 225026

Flambaum V; Berengut JC, 2001, 'Atom made from charged elementary black hole', Physical Review - Section D - Particles and Fields, 63, pp. 084010, http://dx.doi.org/10.1103/PhysRevD.63.084010

Berengut JC; Flambaum V; Gribakin GF, 2000, 'Unusual statistics of interference effects in neutron scattering from compound nuclei', Physical Review C, pp. 024610-1 - 024610-8

Conference Papers

Aude Craik D; Hur J; Counts I; Kniazev E; Caldwell L; Leung C; Geddes A; Berengut J; Pandey S; Kawasaki A; Reinhard P-G; Nazarewicz W; Jeon H; Jhe W; Vuletić V, 2023, 'Fifth-force search with trapped Yb ions', in Shahriar SM; Scheuer J (ed.), Quantum Sensing, Imaging, and Precision Metrology, SPIE, pp. 83 - 83, presented at Quantum Sensing, Imaging, and Precision Metrology, 28 January 2023 - 03 February 2023, http://dx.doi.org/10.1117/12.2657359

Ubachs W; Crespo Lopez-Urrutia J; Berengut J; Borschevsky A; Ryabtsev A; Versolato O; Hoekstra R; Windberger A; Torretti F, 2017, 'SPECTROSCOPY OF HIGHLY CHARGED TIN IONS FOR AN EXTREME ULTRAVIOLET LIGHT SOURCE FOR LITHOGRAPHY', in Proceedings of the 72nd International Symposium on Molecular Spectroscopy, University of Illinois at Urbana-Champaign, pp. 1 - 1, presented at 72nd International Symposium on Molecular Spectroscopy, http://dx.doi.org/10.15278/isms.2017.fe10

Bromley MWJ; Grunefeld SJ; Rossi JM; Berengut JC; Tang LY; Jiang J; Cheng Y; Mitroy J, 2015, 'Complex polarisabilities and hyperpolarisabilities of atoms', in Journal of Physics Conference Series, http://dx.doi.org/10.1088/1742-6596/635/9/092078

Berengut JC; Flambaum VV; Dzuba VA; Gribakin GF; Harabati C; Kozlov MG, 2015, 'Electron recombination with multicharged ions via chaotic many-electron states', in Journal of Physics Conference Series, http://dx.doi.org/10.1088/1742-6596/635/5/052029

Flambaum VV; Chin C; Berengut J, 2015, 'Enhancement of the effects of space-time variation of the fundamental constants in collisions of cold atoms near Feshbach resonances', in Journal of Physics Conference Series, http://dx.doi.org/10.1088/1742-6596/635/2/022016

Preval SP; Barstow MA; Holberg JB; Barrow JD; Berengut JC; Webb JK; Dougan D; Hu J, 2014, 'Do the Constants of Nature Couple to Strong Gravitational Fields?', in Dufour P; Bergeron P; Fontaine G (eds.), 19TH EUROPEAN WORKSHOP ON WHITE DWARFS, ASTRONOMICAL SOC PACIFIC, CANADA, Univ Montreal, Montreal, pp. 415 - 418, presented at 19th European Workshop on White Dwarfs, CANADA, Univ Montreal, Montreal, 11 August 2014 - 15 August 2014, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369565800080&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Berengut JC; Flambaum V; Dmitriev VF, 2011, 'Quark-mass variation effect on big bang nucleosynthesis', in Journal of Physics: Conference Series 264, Institute of Physics, UK, pp. 012043-1 - 012043-4, presented at Nuclear Physics in Astrophysics V, Ellat, Israel, 03 April 2011 - 08 April 2011, http://dx.doi.org/10.1088/1742-6596/337/1/012043

Berengut JC; Dzuba VA; Flambaum VV; King JA; Kozlov MG; Murphy MT; Webb JK, 2011, 'Atomic transition frequencies, isotope shifts, and sensitivity to variation of the fine structure constant for studies of quasar absorption spectra', in Astrophysics and Space Science Proceedings, pp. 9 - 16, http://dx.doi.org/10.1007/978-3-642-19397-2_2

Berengut J; Flambaum V, 2011, 'Enhanced Laboratory Searches for Variation of Fundamental Constants', in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, OSA, pp. I775 - I775, presented at International Quantum Electronics Conference, http://dx.doi.org/10.1364/iqec.2011.i775

Berengut J; Dzuba V; Flambaum VV; Ong A, 2011, 'Optical Clocks Using Highly Charged Ions to Probe Variation of the Fine-Structure Constant', in Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, OSA, pp. I779 - I779, presented at International Quantum Electronics Conference, http://dx.doi.org/10.1364/iqec.2011.i779

Berengut JC; Flambaum V, 2010, 'Astronomical and laboratory searches for space-time variation of fundamental constants', in Journal of Physics: Conference Series 264, Institute of Physics, UK, pp. 012010-1 - 012010-9, presented at 22nd International Conference on Atomic Physics, Cairns, QLD, Austraalia, 25 July 2010 - 30 July 2010, http://dx.doi.org/10.1088/1742-6596/264/1/012010

Berengut JC; Flambaum V, 2010, 'Manifestations of Space-Time Variation of Coupling Constants and Fundamental Masses', in Baaquie BE; Chan AH; Chang N-P; Cheong SA; Kweek LC; Oh CH (eds.), World Scientific Publishing Co Pte Ltd, Singapore, pp. 383 - 396, Nanyang Technological Univ, Singapore, 24 February 2010 - 26 February 2010

Berengut JC; Flambaum VV, 2009, 'Laboratory spectroscopy and the search for variation of the fine-structure constant', in Marinova K; Markov B; Blaszczak Z (eds.), LASER 2009: RECENT ACHIEVEMENTS AND FUTURE PROSPECTS, SPRINGER-VERLAG BERLIN, POLAND, Poznan, pp. 269 - 278, presented at 8th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research - Recent Achievements and Future Prospects (LASER 2009), POLAND, Poznan, 22 June 2009 - 25 June 2009, http://dx.doi.org/10.1007/s10751-009-0146-y

Flambaum V; Berengut JC, 2008, 'Variation of Fundamental Constants from the Big Bang to Atomic Clocks: Theory and Observations', in Proceedings of the 7th Symposium Frequency Standards and Metrology, World Scientific Publ Co Pte Ltd, Singapore, presented at The Symposium on Frequency Standards and Metrology, Pacific Grove, California, USA, 05 October 2008 - 11 October 2008

Preprints

Reitsma ML; Sheil J; Versolato OO; Kahl EV; Berengut JC, 2026, Beyond-EUV spectrum of highly-charged gadolinium, http://dx.doi.org/10.48550/arxiv.2608.27097

Geehan G; Reitsma ML; Polet JD; Laatiaoui M; Berengut J; Borschevsky A, 2026, Ab initio calculations of the electronic structure of Ac$^+$, http://dx.doi.org/10.48550/arxiv.2602.06528

Ackerman ZED; Quevedo AC; Maran I; Gallagher LPH; Spreeuw RJC; Berengut JC; Gerritsma R, 2026, Long-lived metastable states in the 4f$^{13}$5d6s configuration of Yb$^+$, http://dx.doi.org/10.48550/arxiv.2603.04250

Reitsma ML; Sheil J; Versolato OO; Kahl EV; Berengut JC, 2026, Resolving the Blueshift in Calculations of the EUV Spectrum of Multiply Charged Tin Ions, http://dx.doi.org/10.48550/arxiv.2606.04868

Berengut JC; Oreshkina NS, 2025, Second-order hyperfine structure and its impact on new physics searches using isotope shift spectroscopy, http://dx.doi.org/10.48550/arxiv.2409.01530

Door M; Yeh C-H; Heinz M; Kirk F; Lyu C; Miyagi T; Berengut JC; Bieroń J; Blaum K; Dreissen LS; Eliseev S; Filianin P; Filzinger M; Fuchs E; Fürst HA; Gaigalas G; Harman Z; Herkenhoff J; Huntemann N; Keitel CH; Kromer K; Lange D; Rischka A; Schweiger C; Schwenk A; Shimizu N; Mehlstäubler TE, 2025, Probing new bosons and nuclear structure with ytterbium isotope shifts, http://dx.doi.org/10.48550/arxiv.2403.07792

Chang TT; Awazi BB; Berengut JC; Fuchs E; Doret SC, 2024, Systematic-free limit on new light scalar bosons via isotope shift spectroscopy in Ca$^+$, http://dx.doi.org/10.48550/arxiv.2311.17337

Rehbehn N-H; Rosner MK; Berengut JC; ~Schmidt PO; Pfeifer T; Gu MF; López-Urrutia JRC, 2023, Narrow and ultra-narrow transitions in highly charged Xe ions as probes of fifth forces, http://dx.doi.org/10.48550/arxiv.2309.17141

König K; Berengut JC; Borschevsky A; Brinson A; Brown BA; Dockery A; Elhatisari S; Eliav E; Ruiz RFG; Holt JD; Hu B-S; Karthein J; Lee D; Ma Y-Z; Meißner U-G; Minamisono K; Oleynichenko AV; Pineda S; Prosnyak SD; Reitsma ML; Skripnikov LV; Vernon A; Zaitsevski A, 2023, Nuclear charge radii of silicon isotopes, http://dx.doi.org/10.48550/arxiv.2309.02037

Oreshkina NS; Berengut JC, 2023, Comment on "Nuclear Excitation by Free Muon Capture", http://dx.doi.org/10.48550/arxiv.2307.05577

Hur J; Craik DPLA; Counts I; Knyazev E; Caldwell L; Leung C; Pandey S; Berengut JC; Geddes A; Nazarewicz W; Reinhard P-G; Kawasaki A; Jeon H; Jhe W; Vuletić V, 2022, Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson, http://dx.doi.org/10.48550/arxiv.2201.03578

Figueroa NL; Berengut JC; Dzuba VA; Flambaum VV; Budker D; Antypas D, 2022, Precision determination of isotope shifts in ytterbium and implications for new physics, http://dx.doi.org/10.48550/arxiv.2111.01429

Fadeev P; Berengut JC; Flambaum VV, 2021, Effects of variation of the fine structure constant $α$ and quark mass $m_q$ in Mössbauer nuclear transitions, http://dx.doi.org/10.48550/arxiv.2112.13195

Kahl EV; Raeder S; Eliav E; Borschevsky A; Berengut JC, 2021, Ab initio calculations of the spectrum of lawrencium, http://dx.doi.org/10.48550/arxiv.2103.11287

Budker D; Berengut JC; Flambaum VV; Gorchtein M; Jin J; Karbstein F; Krasny MW; Litvinov YA; Pálffy A; Pascalutsa V; Petrenko A; Surzhykov A; Thirolf PG; Vanderhaeghen M; Weidenmüller HA; Zelevinsky V, 2021, Expanding Nuclear Physics Horizons with the Gamma Factory, http://dx.doi.org/10.48550/arxiv.2106.06584

Rehbehn N-H; Rosner MK; Bekker H; Berengut JC; Schmidt PO; King SA; Micke P; Gu MF; Müller R; Surzhykov A; López-Urrutia JRC, 2021, Sensitivity to New Physics of Isotope Shift Studies using the Coronal Lines of Highly Charged Calcium Ions, http://dx.doi.org/10.48550/arxiv.2102.02309

Fadeev P; Berengut JC; Flambaum VV, 2021, Sensitivity of $^{229}$Th nuclear clock transition to variation of the fine-structure constant, http://dx.doi.org/10.48550/arxiv.2007.00408

Fujii K; Berengut JC, 2020, Power-law intensity distribution in $γ$-decay cascades -- Nuclear Structure as a Scale-Free Random Network, http://dx.doi.org/10.48550/arxiv.2005.11844

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