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Atomic, Molecular, Optical and Positron Physics

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Publications

2025

  1. M. H. Rayment and S. D. Hogan, "Ion-dip and laser photoexcitation spectroscopy of high Rydberg states in N2", J. Chem. Phys. accepted for publication (2025)
  2. A. A. S. Amad, F. F. Deppisch, M. Fleck, J. Gallop, T. Goffrey, L. Hao, N. Higginbotham, S. D. Hogan, S. B. Jones, L. Li, N. McConkey, V. Monachello, R. Nichol, J. A. Potter, Y. Ramachers, R. Saakyan, E. Sedzielewski, D. Swinnock, D. Waters, S. Withington, S. Zhao and J. Zou, "Determining Absolute Neutrino Mass using Quantum Technologies", New J. Phys. accepted for publication (2025)

2024

  1. F. Munkes, M. H. Rayment, A. Trachtmann, F. Anschütz, E. Eder, P. Hengel, Y. Schellander, P. Schalberger, N. Fruehauf, J. Anders, R. Löw, T. Pfau, S. D. Hogan and H. Kübler, "High-resolution continuous-wave laser spectroscopy of long-lived Rydberg states in NO", J. Phys. Chem. Lett. 15, 10171 (2024) DOI:10.1021/acs.jpclett.4c02002
  2. L. L. Brown, J. A. L. Grondin and S. D. Hogan, "Demonstration of a tunable interface between Rydberg atoms and superconducting microwave circuits with differential polarizability nulling", Phys. Rev. A 110, 022615 (2024) DOI:10.1103/PhysRevA.110.022615
  3. M. H. Rayment and S. D. Hogan, "Electrostatic trapping of N2 molecules in high Rydberg states", Phys. Rev. Lett. 132, 113201 (2024) DOI:10.1103/PhysRevLett.132.113201

2023

  1. M. H. Rayment and S. D. Hogan, "Effects of rotational excitation on decay rates of long-lived Rydberg states in NO", J. Chem. Phys. 159, 164309 (2023) DOI:10.1063/5.0171329
  2. L. L. Brown and S. D. Hogan, "Tunable Rydberg-Rydberg transitions in helium with reduced sensitivity to dc electric fields by two-colour microwave dressing", J. Phys. B: At. Mol. Opt. Phys. 56, 205001 (2023) DOI:10.1088/1361-6455/aceeda
  3. R. E. Sheldon, T. J. Babij, S. H. Reeder, S. D. Hogan and D. B. Cassidy, "Precision Microwave Spectroscopy of the Positronium 2 3S1 → 2 3P2 Interval", Phys. Rev. Lett. 131, 043001 (2023) DOI:10.1103/PhysRevLett.131.043001
  4. J. Zou and S. D. Hogan, "Absolute static-field magnetometry, magnetic gradiometry, and vector electrometry with circular Rydberg atoms", Phys. Rev. A 107, 062820 (2023) DOI:10.1103/PhysRevA.107.062820
  5. R. E. Sheldon, T. J. Babij, S. H. Reeder, S. D. Hogan and D. B. Cassidy, "Microwave spectroscopy of positronium atoms in free space", Phys. Rev. A 107, 042810 (2023) DOI:10.1103/PhysRevA.107.042810

2022

  1. M. H. Rayment and S. D. Hogan, "Electrostatic trapping vibrationally excited Rydberg NO molecules", Mol. Phys. e2160846 (2022) DOI:10.1080/00268976.2022.2160846
  2. J. Zou and S. D. Hogan, "Probing van der Waals interactions and detecting polar molecules by Förster-resonance energy transfer with Rydberg atoms at temperatures below 100 mK", Phys. Rev. A 106, 043111 (2022) DOI:10.1103/PhysRevA.106.043111
  3. D. M. Walker, L. L. Brown and S. D. Hogan, "Electrometry of a single resonator mode at a Rydberg-atom–superconducting-circuit interface", Phys. Rev. A 105, 022626 (2022) DOI:10.1103/PhysRevA.105.022626

2021

  1. J. D. R. Tommey and S. D. Hogan, "Matter-wave interferometry with helium atoms in low-l Rydberg states", Phys. Rev. A 104, 033305 (2021) DOI:10.1103/PhysRevA.104.033305
  2. M. H. Rayment and S. D. Hogan, "Quantum-state-dependent decay rates of electrostatically trapped Rydberg NO molecules", Phys. Chem. Chem. Phys. 23, 18806 (2021) DOI:10.1039/D1CP01930A
  3. L. Gurung, T. J. Babij, J. Pérez-Ríos, S. D. Hogan, and D. B. Cassidy, "Observation of asymmetric line shapes in precision microwave spectroscopy of the positronium 2 3S1 → 2 3PJ (J = 1,2) fine-structure intervals", Phys. Rev. A 103, 042805 (2021) DOI:10.1103/PhysRevA.103.042805
  4. S. D. Hogan, "Quantum control for Rydberg state spectroscopy", Physics 14, 145 (2021) [Invited Viewpoint] DOI:10.1103/Physics.14.145

2020

  1. D. M. Walker, A. A. Morgan, and S. D. Hogan, "Cavity-enhanced Ramsey spectroscopy at a Rydberg-atom–superconducting-circuit interface", Appl. Phys. Lett. 117, 204001 (2020) DOI:10.1063/5.0024176
  2. A. Deller, M. H. Rayment, and S. D. Hogan, "Slow decay processes of electrostatically trapped Rydberg NO molecules", Phys. Rev. Lett. 125, 073201 (2020) DOI:10.1103/PhysRevLett.125.073201
  3. L. Gurung, T. J. Babij, S. D. Hogan, and D. B. Cassidy, "Precision microwave spectroscopy of the positronium n = 2 fine structure", Phys. Rev. Lett. 125, 073002 (2020) DOI:10.1103/PhysRevLett.125.073002
  4. A. A. Morgan and S. D. Hogan, "Coupling Rydberg atoms to microwave fields in a superconducting coplanar waveguide resonator", Phys. Rev. Lett. 124, 193604 (2020) DOI:10.1103/PhysRevLett.124.193604
  5. A. Deller and S. D. Hogan, "Excitation and characterization of long-lived hydrogenic Rydberg states of nitric oxide", J. Chem. Phys. 152, 144305 (2020) DOI:10.1063/5.0003092
  6. K. Gawlas and S. D. Hogan, "Rydberg-state-resolved resonant energy transfer in cold electric-field-controlled intrabeam collisions of NH3 with Rydberg He atoms", J. Phys. Chem. Lett. 11, 83 (2020) DOI:10.1021/acs.jpclett.9b03290
  7. L. Gurung, B. S. Cooper, S. D. Hogan and D. B. Cassidy, "Resonant shifts of positronium energy levels in MgO powder", Phys. Rev. A 101, 012701 (2020) DOI:10.1103/PhysRevA.101.012701

2019

  1. J. D. R. Tommey and S. D. Hogan, "Resonant Rydberg-atom–microwave-field interactions in the ultrastrong-driving regime: Beyond the rotating-wave approximation", Phys. Rev. A 100, 053417 (2019) DOI:10.1103/PhysRevA.100.053417
  2. J. E. Palmer and S. D. Hogan, "Electric Rydberg-atom interferometry", Phys. Rev. Lett. 122, 250404 (2019) DOI:10.1103/PhysRevLett.122.250404
  3. J. E. Palmer and S. D. Hogan, "Matter-wave interferometry with atoms in high Rydberg states", Mol. Phys. 117, 3108 (2019) DOI:10.1080/00268976.2019.1607916
  4. M. H. Rayment, L. Gurung, R. E. Sheldon, S. D. Hogan, and D. B. Cassidy, "Multiring electrostatic guide for Rydberg positronium", Phys. Rev. A 100, 013410 (2019) DOI: 10.1103/PhysRevA.100.013410
  5. A. Deller and S. D. Hogan, "Confinement of high- and low-field-seeking Rydberg atoms using time-varying inhomogeneous electric fields", Phys. Rev. Lett. 122, 053203 (2019) DOI:10.1103/PhysRevLett.122.053203
  6. K. Gawlas and S. D. Hogan, "Rydberg-state ionization dynamics and tunnel ionization rates in strong electric fields", Phys. Rev. A 99, 013421 (2019) DOI:10.1103/PhysRevA.99.013421

2018

  1. A. M. Alonso, L. Gurung, B. A. D. Sukra, S. D. Hogan, and D. B. Cassidy, "State-selective electric-field ionization of Rydberg positronium", Phys. Rev. A 98, 053417 (2018) DOI:10.1103/PhysRevA.98.053417
  2. A. A. Morgan, V. Zhelyazkova, and S. D. Hogan, "Preparation of circular Rydberg states in helium with n ≥ 70 using a modified version of the crossed-fields method", Phys. Rev. A 98, 043416 (2018) DOI:10.1103/PhysRevA.98.043416
  3. S. D. Hogan,  and "Laser photoexcitation of Rydberg states in helium with n > 400", J. Phys. B: At. Mol. Opt. Phys. 51, 145002 (2018) DOI:10.1088/1361-6455/aac8a1
  4. A. Deller and S. D. Hogan, "Microwave spectroscopy of the 1snp 3PJ fine structure of high Rydberg states in 4He", Phys. Rev. A 97, 012505 (2018) DOI:10.1103/PhysRevA.97.012505

2017

  1. V. Zhelyazkova and S. D. Hogan, "Probing resonant energy transfer in collisions of ammonia with Rydberg helium atoms by microwave spectroscopy", J. Chem. Phys. 147, 244302 (2017) DOI:10.1063/1.5011406
  2. J. Palmer and S. D. Hogan, "Experimental demonstration of a Rydberg-atom beam splitter", Phys. Rev. A 95, 053413 (2017) DOI:10.1103/PhysRevA.95.053413
  3. A. M. Alonso, B. S. Cooper, A. Deller, L. Gurung, S. D. Hogan, and D. B. Cassidy, "Velocity selection of Rydberg positronium using a curved electrostatic guide", Phys. Rev. A 95, 053409 (2017) DOI:10.1103/PhysRevA.95.053409
  4. V. Zhelyazkova and S. D. Hogan, "Electrically tuned Förster resonances in collisions of NH3 with Rydberg He atoms", Phys. Rev. A 95, 042710 (2017) DOI:10.1103/PhysRevA.95.042710
  5. A. M. Alonso, S. D. Hogan, and D. B. Cassidy, "Production of 2 3S1 positronium atoms by single-photon excitation in an electric field", Phys. Rev. A 95, 033408 (2017) DOI:10.1103/PhysRevA.95.033408

2016

  1. V. Zhelyazkova, R. Jirschik and S. D. Hogan, "Mean-field energy-level shifts and dielectric properties of strongly polarized Rydberg gases", Phys. Rev. A 94, 053418 (2016) DOI:10.1103/PhysRevA.94.053418
  2. V. Zhelyazkova and S. D. Hogan, "Preparation of circular Rydberg states in helium using the crossed-fields method", Phys. Rev. A 94, 023415 (2016) DOI:10.1103/PhysRevA.94.023415
  3. A. Deller, A. M. Alonso, B. S. Cooper, S. D. Hogan and D. B. Cassidy, "Electrostatically guided Rydberg positronium", Phys. Rev. Lett. 117, 073202 (2016) DOI:10.1103/PhysRevLett.117.073202
  4. P. Lancuba and S. D. Hogan, "Electrostatic trapping and in situ detection of Rydberg atoms above chip-based transmission lines", J. Phys. B: At. Mol. Opt. Phys. 49, 074006 (2016) DOI:10.1088/0953-4075/49/7/074006
  5. A. Deller, A. M. Alonso, B. S. Cooper, S. D. Hogan and D. B. Cassidy, "Measurement of Rydberg positronium fluorescence lifetimes", Phys. Rev. A 93, 062513 (2016) DOI:10.1103/PhysRevA.93.062513
  6. S. D. Hogan, "Rydberg-Stark deceleration of atoms and molecules", EPJ Techniques and Instrumentation 3, 1 (2016) DOI:10.1140/epjti/s40485-015-0028-4
  7. A. M. Alonso, B. S. Cooper, A. Deller, S. D. Hogan and D. B. Cassidy, "Positronium decay from n = 2 states in electric and magnetic fields", Phys. Rev. A 93, 012506 (2016) DOI:10.1103/PhysRevA.93.012506

2015

  1. V. Zhelyazkova and S. D. Hogan, "Rydberg-Stark states in oscillating electric fields", Mol. Phys. 113, 3979 (2015) DOI:10.1080/00268976.2015.1098741
  2. A. M. Alonso, B. S. Cooper, A. Deller, S. D. Hogan and D. B. Cassidy, "Controlling positronium annihilation with electric fields", Phys. Rev. Lett. 115, 183401 (2015) DOI:10.1103/PhysRevLett.115.183401
  3. V. Zhelyazkova and S. D. Hogan, "Probing interactions between Rydberg atoms with large electric dipole moments in amplitude-modulated electric fields", Phys. Rev. A 92, 011402(R) (2015) DOI:10.1103/PhysRevA.92.011402
  4. T. E. Wall, A. M. Alonso, B. S. Cooper, A. Deller, S. D. Hogan and D. B. Cassidy, "Selective production of Rydberg-Stark states of positronium", Phys. Rev. Lett. 114, 173001 (2015) DOI:10.1103/PhysRevLett.114.173001

2014

  1. T. E. Wall, D. B. Cassidy and S. D. Hogan, "Single-color two-photon spectroscopy of Rydberg states in electric fields", Phys. Rev. A 90, 053430 (2014) DOI:10.1103/PhysRevA.90.053430
  2. P. Lancuba and S. D. Hogan, "Transmission-line decelerators for atoms in high Rydberg states", Phys. Rev. A 90, 053420 (2014) DOI:10.1103/PhysRevA.90.053420
  3. H. Ko and S. D. Hogan, "High-field-seeking Rydberg atoms orbiting a charged wire", Phys. Rev. A 89, 053410 (2014) DOI:10.1103/PhysRevA.89.053410
  4. D. B. Cassidy and S. D. Hogan, "Atom control and gravity measurements using Rydberg positronium", Int. J. Mod. Phys. Conf. Ser. 30, 1460259 (2014) DOI:10.1142/S2010194514602592

2013

  1. P. Lancuba and S. D. Hogan, "Guiding Rydberg atoms above surface-based transmission lines", Phys. Rev. A 88, 043427 (2013) DOI:10.1103/PhysRevA.88.043427
  2. S. D. Hogan, "Calculated photoexcitation spectra of positronium Rydberg states", Phys. Rev. A 87, 063423 (2013) DOI:10.1103/PhysRevA.87.063423
  3. S. D. Hogan, Ch. Seiler and F. Merkt, "Motional, isotope and quadratic Stark effects in Rydberg-Stark deceleration and electric trapping of H and D", J. Phys. B: At. Mol. Opt. Phys. 46, 045303 (2013) DOI:10.1088/0953-4075/46/4/045303

2012

  1. S. D. Hogan, J. A. Agner, F. Merkt, T. Thiele, S. Filipp and A. Wallraff, "Driving Rydberg-Rydberg transitions from a co-planar microwave  waveguide", Phys. Rev. Lett. 108, 063004 (2012) DOI:10.1103/PhysRevLett.108.063004
  2. S. D. Hogan, P. Allmendinger, H. Saßmannshausen, H. Schmutz and F. Merkt, "A surface-electrode Rydberg-Stark decelerator", Phys. Rev. Lett. 108, 063008 (2012) DOI:10.1103/PhysRevLett.108.063008
  3. Ch. Seiler, S. D. Hogan and F. Merkt, "Dynamical processes in Rydberg-Stark  deceleration and trapping of atoms and molecules", Chimia 66, 208 (2012) DOI:10.2533/chimia.2012.208
  4. S. D. Hogan, "Cold atoms and molecules by Zeeman deceleration and Rydberg-Stark deceleration", Habilitation Thesis, Laboratory of Physical Chemistry, ETH Zurich (2012) [download pdf (33 MB)]

2011

  1. S. D. Hogan, M. Motsch and F. Merkt, "Deceleration of supersonic beams using inhomogeneous electric and magnetic fields", Phys. Chem. Chem. Phys. 13, 18705 (2011) DOI:10.1039/C1CP21733J
  2. Ch. Seiler, S. D. Hogan and F. Merkt, "Trapping cold molecular hydrogen", Phys. Chem. Chem. Phys. 13, 19000 (2011) DOI:10.1039/C1CP21276A
  3. Ch. Seiler, S. D. Hogan, H. Schmutz, J. A. Agner and F. Merkt, "Collisional and radiative processes in adiabatic deceleration, deflection and off-axis trapping of a Rydberg atom beam", Phys. Rev. Lett. 106, 073003 (2011) DOI:10.1103/PhysRevLett.106.073003
  4. A. W. Wiederkehr, M. Motsch, S. D. Hogan, M. Andrist, H. Schmutz, B. Lambillotte, J. A. Agner and F. Merkt, "Multistage Zeeman deceleration of metastable neon", J. Chem. Phys. 135, 214202 (2011) DOI:10.1063/1.3662141

2010

  1. A. W. Wiederkehr, S. D. Hogan, B. Lambillotte, M. Andrist, H. Schmutz, J. Agner, Y. Salathé and F. Merkt, "Trapping deuterium atoms", Phys. Rev. A 81, 021402(R) (2010) DOI:10.1103/PhysRevA.81.021402
  2. A. W. Wiederkehr, S. D. Hogan and F. Merkt, "Phase stability in a multistage Zeeman decelerator", Phys. Rev. A 82, 043428 (2010) DOI:10.1103/PhysRevA.82.043428

2009

  1. S. D. Hogan, Ch. Seiler and F. Merkt, "Rydberg-state-enabled deceleration and trapping of cold molecules", Phys. Rev. Lett. 103, 123001 (2009) DOI:10.1103/PhysRevLett.103.123001
  2. S. D. Hogan and F. Merkt, "A New Perspective on the Binding Power of an Electron", ChemPhysChem 10, 2931 (2009) DOI:10.1002/cphc.200900499

2008

  1. S. D. Hogan and F. Merkt, "Demonstration of Three-Dimensional Electrostatic Trapping of State-Selected Rydberg Atoms", Phys. Rev. Lett. 100, 043001 (2008) DOI:10.1103/PhysRevLett.100.043001
  2. S. D. Hogan, E. Vliegen, D. Sprecher, N. Vanhaecke, M. Andrist, H. Schmutz, U. Meier, B. H. Meier and F. Merkt, "Stark and Zeeman deceleration of neutral atoms and molecules" in "Laser Spectroscopy. Proceedings of the XVIII International Conference ICOLS 2007" Leo Hollberg (ed.), Jim Bergquist (ed.) and Mark Kasevich (ed.) World Scientific, Singapore, 153-166 (2008) DOI:10.1142/9789812813206_0013
  3. S. D. Hogan, A. W. Wiederkehr, M. Andrist, H. Schmutz and F. Merkt, "Slow beams of atomic hydrogen by multistage Zeeman deceleration", J. Phys. B: At. Mol. Opt. Phys. 41, 081005 (2008) DOI:10.1088/0953-4075/41/8/081005
  4. S. D. Hogan, A. W. Wiederkehr, H. Schmutz and F. Merkt, "Magnetic trapping of hydrogen after multistage Zeeman deceleration", Phys. Rev. Lett. 101, 143001 (2008) DOI:10.1103/PhysRevLett.101.143001
  5. J.-P. Connerade, S. D. Hogan, H.-P. Liu and M.-S. Zhan, "Towards a test of sting theory using Rydberg atoms", Eur. Phys. J. D 46, 431 (2008) DOI:10.1140/epjd/e2007-00335-x
  6. A. Kellerbauer, M. Amoretti, A. S. Belov, G. Bonomi, I. Boscolo, R. S. Brusa, M. Büchner, V. M. Byakov, L. Cabaret, C. Canali, C. Carraro, F. Castelli, S. Cialdi, M. de Combarieu, D. Comparat, G. Consolati, N. Djourelov, M. Doser, G. Drobychev, A. Dupasquier, G. Ferrari, P. Forget, L. Formaro, A. Gervasini, M. G. Giammarchi, S. N. Gninenko, G. Gribakin, S. D. Hogan, M. Jacquey, V. Lagomarsino, G. Manuzio, S. Mariazzi, V. A. Matveev, J. O. Meier, F. Merkt, P. Nedelec, M. K. Oberthaler, P. Pari, M. Prevedelli, F. Quasso, A. Rotondi, D. Sillou, S. V. Stepanov, H. H. Stroke, G. Testera, G. M. Tino, G. Trénec, A. Vairo, J. Vigué, H. Walters, U. Warring, S. Zavatarelli and D. S. Zvezhinskij, "Proposed antimatter gravity measurement with an antihydrogen beam", Nucl. Instr. and Meth. in Phys. Res. B 266, 351 (2008) DOI:10.1016/j.nimb.2007.12.010

2007

  1. S. D. Hogan, D. Sprecher, M. Andrist, N. Vanhaecke and F. Merkt, "Zeeman deceleration of H and D", Phys. Rev. A 76, 023412 (2007) DOI:10.1103/PhysRevA.76.023412
  2. E. Vliegen, S. D. Hogan, H. Schmutz and F. Merkt, "Stark deceleration and trapping of hydrogen Rydberg atoms", Phys. Rev. A 76, 023405 (2007) DOI:10.1103/PhysRevA.76.023405
  3. J.-P. Connerade, S. D. Hogan, A. M. Abdulla and M. S. Zhan, "Highly excited atoms - a homage to Pierre Jacquinot", Phys. Scr. 76, C140 (2007) DOI:10.1088/0031-8949/76/4/N06
  4. S. D. Hogan and J.-P. Connerade, "On the effect of resolution on nearest-neighbour level spacings in atomic spectra", Eur. Phys. J. D 44, 47 (2007) DOI:10.1140/epjd/e2007-00165-x

2006

  1. S. D. Hogan, "Rydberg states interacting in crossed electric and magnetic fields", PhD Thesis, Department of Physics, Imperial College London (2006)
  2. H. P. Liu, Z. G. Sun, S. D. Hogan and N. Q. Lou, "Photodissociation dynamics of CF3I investigated by two-color femtosecond laser pulses", Eur. Phys. J. D 40, 357 (2006) DOI:10.1140/epjd/e2006-00183-2

2005

  1. S. Gundry, M. P. Anscombe, A. M. Abdulla, S. D. Hogan, E. Sali, J. W. G. Tisch, and J. P. Marangos, "Off-resonant preparation of a vibrational coherence for enhanced stimulated Raman scattering", Phys. Rev. A 72, 033824 (2005) DOI:10.1103/PhysRevA.72.033824
  2. J.-P. Connerade, S. D. Hogan and A. M. Abdulla, "Experimental investigation of atoms in crossed electric and magnetic fields", J. Phys. B: At. Mol. Opt. Phys. 38, S141 (2005) DOI:10.1088/0953-4075/38/2/011

2004

  1. A. M. Abdulla, S. Hogan, M. S. Zhan and J.-P. Connerade, "High-lying Rydberg states of barium in crossed fields", J. Phys. B: At. Mol. Opt. Phys. 37, L147 (2004) DOI:10.1088/0953-4075/37/8/L01