Publications Quantum Nanophysics, Optics and Information



  • M. Rodà Llordés, A. Riera Campeny, D. Candoli, P. Grochowski, O. Romero-Isart Macroscopic Quantum Superpositions via Dynamics in a Wide Double-Well Potential Phys. Rev. Lett. 132, 23601 (2024). (ID: 721065)



  • E. Bonvin, L. Devaud, M. Rossi, A. Militaru, L. Dania, D. Bykov, O. Romero-Isart, T. E. Northup, L. Novotny, M. Frimmer State Expansion of a Levitated Nanoparticle in a Dark Harmonic Potential arXiv:2312.13111 (ID: 721167)
  • P. Grochowski, H. Pichler, C. A. Regal, O. Romero-Isart Quantum control of continuous systems via nonharmonic potential modulation arXiv:2311.16819 (ID: 721151)
  • J. Vijayan, J. Piotrowski, C. Gonzalez-Ballestero, K. Weber, O. Romero-Isart, L. Novotny Cavity-mediated long-range interactions in levitated optomechanics arXiv:2308.14721 (ID: 721118)
  • A. Riera Campeny, M. Rodà Llordés, P. Grochowski, O. Romero-Isart Wigner Analysis of Particle Dynamics in Wide Nonharmonic Potentials arXiv:2307.14106 (ID: 721110)
  • M. Rodà Llordés, D. Candoli, P. Grochowski, A. Riera Campeny, T. E. Agrenius Gustafsson, J. García-Ripoll, C. Gonzalez-Ballestero, O. Romero-Isart Numerical Simulation of Large-Scale Nonlinear Open Quantum Mechanics arXiv:2306.09083 (ID: 721086)


  • P. Maurer, C. Gonzalez-Ballestero, O. Romero-Isart Quantum Electrodynamics with a Nonmoving Dielectric Sphere: Quantizing Mie Scattering J. Opt. Soc. Am. B 40, 3137 (2023). (ID: 720662)
  • P. Maurer, C. Gonzalez-Ballestero, O. Romero-Isart Quantum Theory of Light Interaction with a Lorenz-Mie Particle: Optical Detection and Three-Dimensional Ground-State Cooling Phys. Rev. A 108, 33714 (2023). (ID: 720917)
  • C. Gonzalez-Ballestero, J. A. Zielinska, M. Rossi, A. Militaru, M. Frimmer, L. Novotny, P. Maurer, O. Romero-Isart Suppressing Recoil Heating in Levitated Optomechanics using Squeezed Light PRX Quantum 4, 30331 (2023). (ID: 720877)
  • S. Lepeshov, N. Meyer, P. Maurer, O. Romero-Isart, R. Quidant Levitated Optomechanics with Meta-Atoms Phys. Rev. Lett. 130, 233601 (2023). (ID: 720896)
  • S. Casulleras-Guardia, S. Knauer, Q. Wang, O. Romero-Isart, A. Chumak, C. Gonzalez-Ballestero Generation of Spin-Wave Pulses by Inverse Design Phys. Rev. Applied 19, 64085 (2023). (ID: 720878)
  • J. Piotrowski, D. Windey, J. Vijayan, C. Gonzalez-Ballestero, A. de los Ríos Sommer, N. Meyer, R. Quidant, O. Romero-Isart, R. Reimann, L. Novotny Simultaneous ground-state cooling of two mechanical modes of a levitated nanoparticle Nature Phys. 19, 1009 (2023). (ID: 720894)
  • T. E. Agrenius Gustafsson, C. Gonzalez-Ballestero, P. Maurer, O. Romero-Isart Interaction Between an Optically Levitated Nanoparticle and Its Thermal Image: Internal Thermometry via Displacement Sensing Phys. Rev. Lett. 130, 93601 (2023). (ID: 720881)
  • M. O. Brown, S. M. Muleady, W. J. Dworschack, R. J. Lewis-Swan, A. M. Rey, O. Romero-Isart, C. A. Regal Time-of-flight Quantum Tomography of an Atom in an Optical Tweezer Nature Phys. 19, 569 (2023). (ID: 720819)



  • Lukas Neumeier, Mario Ciampini, Oriol Romero-Isart, Markus Aspelmeyer, Nikolai Kiesel Fast Quantum Interference of a Nanoparticle via Optical Potential Control arXiv:2207.12539 (ID: 720850)


  • L. Novotny, M. Frimmer, A. Militaru, A. Norrman, Oriol Romero-Isart, Patrick Maurer Optomechanical sideband asymmetry explained by stochastic electrodynamics Phys. Rev. A 106, 43511 (2022). (ID: 720893)
  • Andrei Militaru, Massimiliano Rossi, Felix Tebbenjohanns, Oriol Romero-Isart, Martin Frimmer, L. Novotny Ponderomotive squeezing of light by a levitated nanoparticle in free space Phys. Rev. Lett. 129, 53602 (2022). (ID: 720814)
  • K. Kustura, V. Wachter, A. Rubio López, C. C. Rusconi Stability of a magnetically levitated nanomagnet in vacuum: Effects of gas and magnetization damping Phys. Rev. B 105, 174439 (2022). (ID: 720664)
  • K. Kustura, C. Gonzalez-Ballestero, A. de los Ríos Sommer, N. Meyer, R. Quidant, O. Romero-Isart Mechanical squeezing via unstable dynamics in a microcavity Phys. Rev. Lett. 128, 143601 (2022). (ID: 720706)
  • Cosimo C. Rusconi, Maxime Pedriat, Gabriel Hétet, Oriol Romero-Isart, Benjamin Stickler Spin-controlled quantum interference of levitated nano rotors Phys. Rev. Lett. 129, 93605 (2022). (ID: 720823)
  • C. Gonzalez-Ballestero, T. van der Sar, O. Romero-Isart Towards a quantum interface between spin waves and paramagnetic spin baths Phys. Rev. B 105, 75410 (2022). (ID: 720549)


  • K. Kustura Coherent and incoherent dynamics of multimode systems in the quantum regime: From theory to applications , (2022). (ID: 721003)



  • C. Gonzalez-Ballestero, M. Aspelmeyer, L. Novotny, R. Quidant, O. Romero-Isart Levitodynamics: Levitation and Control of Microscopic Objects in Vacuum Science 374, eabg3027 (2021). (ID: 720691)
  • P. Heidler, C. Schneider, K. Kustura, C. Gonzalez-Ballestero, O. Romero-Isart, G. Kirchmair Non-Markovian Effects of Two-Level Systems in a Niobium Coaxial Resonator with a Single-Photon Lifetime of 10 ms Phys. Rev. Applied 16, 34024 (2021). (ID: 720630)
  • M. Rodà Llordés, C. Gonzalez-Ballestero, A. Rubio López, M. Martínez-Pérez, F. Luis, O. Romero-Isart Quantum Size Effects in the Magnetic Susceptibility of a Metallic Nanoparticle Phys. Rev. B 104, L100407 (2021). (ID: 720539)
  • T. Weiß, M. Rodà Llordés, E. Torrontegui, M. Aspelmeyer, O. Romero-Isart Large Quantum Delocalization of a Levitated Nanoparticle using Optimal Control: Applications for Force Sensing and Entangling via Weak Forces Phys. Rev. Lett. 127, 23601 (2021). (ID: 720564)
  • K. Kustura, O. Romero-Isart, C. Gonzalez-Ballestero Effective quantum dynamics induced by a driven two-level system bath Phys. Rev. A 103, 53709 (2021). (ID: 720563)
  • D. Hümmer, O. Romero-Isart, A. Rauschenbeutel, P. Schneeweiss Probing Surface-Bound Atoms with Quantum Nanophotonics Phys. Rev. Lett. 126, 163601 (2021). (ID: 720511)
  • S. Casulleras, C. Gonzalez-Ballestero, P. Maurer, J. García-Ripoll, O. Romero-Isart Remote Individual Addressing of Quantum Emitters with Chirped Pulses Phys. Rev. Lett. 126, 103602 (2021). (ID: 720486)
  • O. Gargiulo, S. Oleschko, J. Prat-Camps, M. Zanner, G. Kirchmair Fast flux control of 3D transmon qubits using a magnetic hose Appl. Phys. Lett. 118, (2021). (ID: 720099)



  • E. Sanchez Burillo, A. Gonzalez-Tudela, C. Gonzalez-Ballestero Theory of waveguide-QED with moving emitters Phys. Rev. A 102, 13726 (2020). (ID: 720481)
  • D. Hümmer, R. Lampert, K. Kustura, P. Maurer, C. Gonzalez-Ballestero, O. Romero-Isart Acoustic and Optical Properties of a Fast Spinning Dielectric Nanoparticle Phys. Rev. B 101, 205416 (2020). (ID: 720430)
  • J. Gieseler, A. Kabcenell, E. Rosenfeld, J. D. Schaefer, A. Safira, M. J. Schuetz, C. Gonzalez-Ballestero, C. C. Rusconi, O. Romero-Isart, M. Lukin Single-Spin Magnetomechanics with Levitated Micromagnets Phys. Rev. Lett. 124, 163604 (2020). (ID: 720435)
  • C. Gonzalez-Ballestero, J. Gieseler, O. Romero-Isart Quantum Acoustomechanics with a Micromagnet Phys. Rev. Lett. 124, 93602 (2020). (ID: 720321)
  • C. Gonzalez-Ballestero, D. Hümmer, J. Gieseler, O. Romero-Isart Theory of Quantum Acoustomagnonics and Acoustomechanics with a Micromagnet Phys. Rev. B 101, 125404 (2020). (ID: 720431)



  • A. Rubio López, O. Romero-Isart Radiation Reaction of a Jiggling Dipole in a Quantum Electromagnetic Field Phys. Rev. Lett. 123, 243603 (2019). (ID: 720276)
  • T. Weiß, O. Romero-Isart Quantum Motional State Tomography with Non-Quadratic Potentials and Neural Networks Phys. Rev. Research 1, 33157 (2019). (ID: 720291)
  • D. Hümmer, P. Schneeweiss, A. Rauschenbeutel, O. Romero-Isart Heating in Nanophotonic Traps for Cold Atoms Phys. Rev. X 9, 041034 (2019). (ID: 720144)
  • C. C. Rusconi, M. J. Schuetz, J. Gieseler, M. Lukin, O. Romero-Isart Hybrid Architecture for Engineering Magnonic Quantum Networks Phys. Rev. A 100, 22343 (2019). (ID: 720060)
  • C. Gonzalez-Ballestero, P. Maurer, D. Windey, L. Novotny, R. Reimann, O. Romero-Isart Theory for Cavity Cooling of Levitated Nanoparticles via Coherent Scattering: Master Equation Approach Phys. Rev. A 100, 13805 (2019). (ID: 720143)
  • D. Windey, C. Gonzalez-Ballestero, P. Maurer, L. Novotny, O. Romero-Isart, R. Reimann Cavity-Based 3D Cooling of a Levitated Nanoparticle via Coherent Scattering Phys. Rev. Lett. 122, 123601 (2019). (ID: 720109)
  • K. Kustura, C. C. Rusconi, O. Romero-Isart Quadratic Quantum Hamiltonians: General Canonical Transformation to a Normal Form Phys. Rev. A 99, 22130 (2019). (ID: 720073)





  • O. Romero-Isart Coherent Inflation for Large Quantum Superpositions of Microspheres New J. Phys. 19, 719711 (2017). (ID: 719711)
  • C. C. Rusconi, V. Pöchhacker, K. Kustura, J. I. Cirac, O. Romero-Isart Quantum Spin Stabilized Magnetic Levitation Phys. Rev. Lett. 119, 167202 (2017). (ID: 719772)
  • C. C. Rusconi, V. Pöchhacker, J. I. Cirac, O. Romero-Isart Linear Stability Analysis of a Levitated Nanomagnet in a Static Magnetic Field: Quantum Spin Stabilized Magnetic Levitation Phys. Rev. B 96, 134419 (2017). (ID: 719731)
  • R. Mach-Batlle, A. Parra, J. Prat-Camps, S. Laut, C. Navau, À. Sánchez Negative permeability in magnetostatics and its experimental demonstration Phys. Rev. B 96, 94422 (2017). (ID: 719880)
  • C. Gonzalez-Ballestero, F. A. Y. N. Schröder, A. Chin Uncovering nonperturbative dynamics of the biased sub-Ohmic spin-boson model with variational matrix product states Phys. Rev. B 96, 115427 (2017). (ID: 719833)
  • J. Prat-Camps, C. Teo, C. C. Rusconi, W. Wieczorek, O. Romero-Isart Ultrasensitive Inertial and Force Sensors with Diamagnetically Levitated Magnets Phys. Rev. Applied 8, 34002 (2017). (ID: 719764)
  • P. Maurer, J. Prat-Camps, J. I. Cirac, T. W. Hänsch, O. Romero-Isart Ultrafocused Electromagnetic Field Pulses with a Hollow Cylindrical Waveguide Phys. Rev. Lett. 119, 43904 (2017). (ID: 719792)
  • C. Navau, R. Mach-Batlle, A. Parra, J. Prat-Camps, S. Laut, N. Del-Valle, À. Sánchez Enhancing the sensitivity of magnetic sensors by 3D metamaterial shells Sci. Rep. 7, 44762 (2017). (ID: 719778)
  • G. Watanabe, B. Venkatesh, P. Talkner, A. del Campo Quantum Performance of Thermal Machines over Many Cycles Phys. Rev. Lett. 118, 50601 (2017). (ID: 719722)



  • H. Keßle, J. Klinder, B. Venkatesh, C. Georges, A. Hemmerich In situ observation of optomechanical Bloch oscillations in an optical cavity New J. Phys. 18, 102001 (2016). (ID: 719662)
  • P. Maurer, J. I. Cirac, O. Romero-Isart Ultrashort Pulses for Far-Field Nanoscopy Phys. Rev. Lett. 117, 103602 (2016). (ID: 719476)
  • M. L. Juan, G. Molina-Terriza, T. Volz, O. Romero-Isart Near-field levitated quantum optomechanics with nanodiamonds Phys. Rev. A 94, 23841 (2016). (ID: 719247)
  • R. Dasgupta, B. Venkatesh, G. Watanabe Attraction-induced dynamical stability of a Bose-Einstein condensate in a nonlinear lattice Phys. Rev. A 93, 63618 (2016). (ID: 719540)
  • D. Hoang, B. Venkatesh, S. Han, J. Jo, G. Watanabe, M. Choi Scaling Law for Irreversible Entropy Production in Critical Systems Sci. Rep. 6, 27603 (2016). (ID: 719588)
  • J. Prat-Camps, C. Navau, À. Sánchez Quasistatic Metamaterials: Magnetic Coupling Enhancement by Effective Space Cancellation Adv. Mater. 28, 4898 (2016). (ID: 719584)
  • G. Watanabe, B. Venkatesh, R. Dasgupta Nonlinear Phenomena of Ultracold Atomic Gases in Optical Lattices: Emergence of Novel Features in Extended States Entropy 18, 118 (2016). (ID: 719541)
  • C. C. Rusconi, O. Romero-Isart Magnetic Rigid Rotor in the Quantum Regime: Theoretical Toolbox Phys. Rev. B 93, 54427 (2016). (ID: 719380)



  • B. Venkatesh, D. H. O'Dell, J. Goldwin An optomechanical elevator: Transport of a Bloch oscillating Bose-Einstein condensate up and down an optical lattice by cavity sideband amplification and cooling Atoms 4, 2 (2015). (ID: 719413)
  • G. Via, G. Kirchmair, O. Romero-Isart Strong Single-Photon Coupling in Superconducting Quantum Magnetomechanics Phys. Rev. Lett. 114, 143602 (2015). (ID: 719099)