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Recent Publications

Here is a list of our most recent work, published or in arXiv.,


  • Cooling a quantum oscillator: A useful analogy to understand laser cooling as a thermodynamical process. N Freitas, JP Paz arXiv preprint arXiv:1710.11554. Phys. Rev. A 97, 032104 (2018).
  • Quantum work for sudden quenches in Gaussian random Hamiltonians. E. G. Arrais, D. A. Wisniacki, L. C. Céleri, N. G de Almeida, A. J. Roncaglia, F. Toscano. arXiv preprint arXiv:1802.10559. 


  • Semiclassical approach to the work distribution. I García-Mata, AJ Roncaglia, DA Wisniacki arXiv preprint arXiv:1709.05115
  • Quantum-to-classical transition in the work distribution for chaotic systems. I García-Mata, AJ Roncaglia, DA Wisniacki. Physical Review E 95 (5), 050102(R).
  • Using a quantum work meter to test non-equilibrium fluctuation theorems. F Cerisola, Y Margalit, S Machluf, AJ Roncaglia, JP Paz, R Folman. Nature Communications 8, 1241 (2017) , arXiv preprint arXiv:1706.07866 
  •  Scalable creation of long-lived multipartite entanglement. H Kaufmann, T Ruster, CT Schmiegelow, MA Luda, V Kaushal, J Schulz, D von Lindenfels, F Schmidt-Kaler, UG Poschinger. Physical Review Letters 119 (15), 150503 (2017).
  • Experimental Verification of Position-Dependent Angular-Momentum Selection Rules for Absorption of Twisted Light by a Bound Electron. A Afanasev, CE Carlson, CT Schmiegelow,  J Schulz, F Schmidt-Kaler, M Solyanik. arXiv preprint arXiv:1709.05571. New J. Phys. 20, 023032 (2018).
  • Twisted-ligth--ion interaction: the role of longitudinal fields. GF Quinteiro, F Schmidt-Kaler, CT Schmiegelow. arXiv preprint arXiv:1707.04776. Phys. Rev. Lett. 119, 253203 (2017).
  • Fast ion swapping for quantum-information processing. 
    H Kaufmann, T Ruster, CT Schmiegelow, MA Luda, V Kaushal, J Schulz, David von Lindenfels, Ferdinand Schmidt-Kaler, Ulrich G Poschinger. Physical Review A 95 (5), 052319 (2017)
  • Entanglement-based dc magnetometry with separated ions. T Ruster, H Kaufmann, MA Luda, V Kaushal, CT Schmiegelow, F Schmidt-Kaler, UG Poschinger. Phys. Rev. X 7, 031050 (2017) arXiv preprint arXiv:1704.01793

  • Noise-induced transport in the motion of trapped ions. Cecilia Cormick, Christian T. Schmiegelow. arXiv:1610.04869 [pdfother]. Phys. Rev. A 94, 053406 (2016).
  • Quantum to classical transition in the work distribution for chaotic systems. Ignacio García-Mata, Augusto J. Roncaglia, Diego A. Wisniacki. arXiv:1610.08874 [pdfother]
  • Transfer of optical orbital angular momentum to a bound electron. Christian T. SchmiegelowJonas SchulzHenning KaufmannThomas RusterUlrich G. Poschinger, Ferdinand Schmidt-Kaler. Nature Communications 7, 12998 (2016).
  • Fast ion swapping for quantum information processing. Henning Kaufmann, Thomas Ruster, Christian T. Schmiegelow, Marcelo A. Luda, Vidyut Kaushal, Jonas Schulz, David von Lindenfels,Ferdinand Schmidt-Kaler, Ulrich G. Poschinger. arXiv:1607.03734 [pdfother]
  • A long-lived Zeeman trapped-ion qubit. Thomas Ruster, Christian T. Schmiegelow, Henning Kaufmann, Claudia Warschburger, Ferdinand Schmidt-Kaler, Ulrich G. Poschinger. arXiv:1606.07220 [pdfother]
  • Entanglement breaking channels and entanglement sudden death. Laura T. Knoll, Christian T. Schmiegelow, Osvaldo Jiménez Farías, Stephen P. Walborn, Miguel A. Larotonda. Phys. Rev. A 94, 012345 (2016).


  • Comment on General Non-Markovian Dynamics of Open Quantum Systems. Dara P. S. McCutcheon, Juan Pablo Paz, and Augusto J. Roncaglia. Phys. Rev. Lett. 115, 168901 (2015).

  • Heat transport through ion crystals. Nahuel Freitas, Esteban A Martinez and Juan Pablo Paz. Physica Scripta, 91, 1 (2015).

  • Relaxation of isolated quantum systems beyond chaos. Ignacio García-Mata, Augusto J. Roncaglia, Diego A. Wisniacki. Phys. Rev. E 91, 010902(R) (2015).
  • Measuring work and heat in ultracold quantum gases. G. De Chiara, A. J. Roncaglia, J. P. Paz. New J. Phys. 17, 035004 (2015).
  • Comment on "Exploring chaos in the Dicke model using ground-state fidelity and the Loschmidt echo". I. García-Mata, A. J. Roncaglia, D. A. Wisniacki. Phys. Rev. E 91, 036901 (2015).
  • Manipulating transverse modes of photons for quantum cryptography. Marcelo Alejandro Luda, Miguel Antonio Larotonda, Juan Pablo Paz, and Christian Tomás Schmiegelow. Phys. Rev. A 89, 042325 (2014).

  • Heat transport through ion crystals. Nahuel Freitas, Esteban Martinez, Juan Pablo Paz. arXiv:1312.6644 [pdfother] 
  • Comment on "General Non-Markovian Dynamics of Open Quantum Systems"Dara P. S. McCutcheon, Juan Pablo Paz, Augusto. J. Roncaglia. arXiv:1312.5286 [pdfpsother]
  • Temperature-dependent Mollow triplet spectra from a single quantum dot: Rabi frequency renormalisation and sideband linewidth insensitivity. Yu-Jia Wei, Yu He, Yu-Ming He, Chao-Yang Lu, Jian-Wei Pan, Christian Schneider, Martin Kamp, Sven Höfling, Dara P. S. McCutcheon, Ahsan NazirPhys. Rev. Lett. 113, 097401 (2014).
  • Model of Optical Emission of Driven Semiconductor Quantum Dot: Phonon-Enhanced Coherent Scattering and Off-Resonant sideband narrowing. Dara P. S. McCutcheon and Ahsan Nazir. Phys. Rev. Lett. 110, 217401 (2013).
  • A multi-site variational master equation approach to dissipative energy transfer.  F. A. Pollock, D. P. S. McCutcheon, B. W. Lovett, E. M. Gauger and A. Nazir. New J. Phys. 15, 075018 (2013) 
  • Selective and efficient quantum state tomography and its application to quantum process tomography. Ariel Bendersky and Juan Pablo Paz. Phys. Rev. A 87, 012122 (2013).
  • Dynamics of Gaussian discord between two oscillators interacting with a common environment. José Nahuel Freitas and Juan Pablo Paz. Phys. Rev. A 85, 032118 (2012). arXiv:1203.3819 [pdf, ps, other]
  • Chiral-mediated entanglement in an Aharonov-Bohm ring. Bruno Rizzo, Liliana Arrachea, and Juan Pablo Paz. Phys. Rev. B 85, 045442 (2012). arXiv:1201.5863 [pdf, ps, other] 
  • A multi-site variational master equation approach to dissipative energy transfer. Felix A. Pollock, Dara P. S. McCutcheon, Brendon W. Lovett, Erik M. Gauger, Ahsan Nazir. arXiv:1212.5713 [pdfpsother]
  • Light with orbital angular momentum interacting with trapped ions. Christian Tomás Schmiegelow, Ferdinand Schmidt-Kaler. Eur. Phys. J. D (2012) 66: 157. arXiv:1112.3377 [pdfother]


  • Ancilla-less selective and efficient quantum process tomography. Christian Tomás Schmiegelow, Ariel Bendersky, Miguel Antonio Larotonda, Juan Pablo Paz. Phys. Rev. Lett. 107, 100502 (2011) arXiv:1105.4815 [pdf, other]
  • Gapped Two-Body Hamiltonian for continuous-variable quantum computation. Leandro Aolita, Augusto J. Roncaglia, Alessandro Ferraro, Antonio Acín. Phys. Rev. Lett. 106, 090501 (2011).  arXiv:1007.0951 [pdf, other]
  • Sequential measurement-based quantum computing with memories. Augusto J. Roncaglia, Leandro Aolita, Alessandro Ferraro, Antonio Acin. Phys. Rev. A 83, 062332 (2011). arXiv:1103.1907 [pdf, other]


  • Progress toward scalable tomography of quantum maps using twirling-based methods and information hierarchies. Cecilia C. López, Ariel Bendersky, Juan Pablo Paz, and David G. Cory. Phys. Rev. A 81, 062113 (2010)APS Link , arXiv:1003.2444
  • Selective and Efficient Quantum Process Tomography with Single Photons. Christian Tomás Schmiegelow, Miguel Antonio Larotonda, and Juan Pablo Paz. Phys. Rev. Lett. 104, 123601 (2010). APS linkarXiv:1002.4436
  • Observing different phases for the dynamics of entanglement in an ion trap.  Cecilia Cormick and Juan Pablo Paz. Phys. Rev. A 81, 022306 (2010)APS link, arXiv:0912.160


  • Redundancy of classical and quantum correlations during decoherence. Juan Pablo Paz, Augusto Roncaglia. arXiv:0909.0474 [pdf, other]

  • Entanglement dynamics during decoherence. Juan Pablo Paz, Augusto Roncaglia. To appear in QIP special issue on Quantum Decoherence and Entanglement. arXiv:0909.0423 [pdf, other]

  • Selective and efficient quantum process tomography. Ariel Bendersky, Fernando Pastawski, Juan Pablo Paz. arXiv:0906.3002 [ps, pdf, other]

  • General theory of measurement with two copies of a quantum state. Ariel Bendersky, Juan Pablo Paz, Marcelo Terra Cunha. Phys. Rev. Lett. 103, 040404. arXiv:0904.3576 [ps, pdf, other]

  • Dynamical phases for the evolution of the entanglement between two oscillators coupled to the same environment. Juan Pablo Paz, Augusto J. Roncaglia. Phys. Rev. A 79, 032102. arXiv:0809.1676 [ps, pdf, other]


  • Decoherence of Bell states by local interactions with a dynamic spin environment. Cecilia Cormick, Juan Pablo Paz. Phys. Rev. A 78, 012357. arXiv:0804.0241 [ps, pdf, other]

  • Dynamics of the entanglement between two oscillators in the same environment. Juan Pablo Paz, Augusto J. Roncaglia. Phys. Rev. Lett. 100, 220401. arXiv:0801.0464 [ps, pdf, other]

  • Selective and efficient estimation of parameters for quantum process tomography. Ariel Bendersky, Fernando Pastawski, and Juan Pablo Paz. Phys. Rev. Lett. 100, 190403. arXiv:0801.0758 [ps, pdf, other]
  • Decoherence induced by a dynamic spin environment: The universal regime. Cecilia Cormick, Juan Pablo Paz. Phys. Rev. A 77, 022317. arXiv:0709.2622 [ps, pdf, other]


  • Universal decoherence induced by an environmental quantum phase transition. Fernando Martin Cucchietti, Sonia Fernandez-Vidal, Juan Pablo Paz. Phys. Rev. A 75, 032337. arXiv:quant-ph/0604136 [ps, pdf, other]

  • Entanglement generation resonances in XY chains. R. Rossignoli, C.T. Schmiegelow. Phys. Rev. A 75, 012320. arXiv:0707.0473 [ps, pdf, other]
  • Einstein against quantum mechanics: randomness, ignorance and our ignorance about randomness. Juan Pablo Paz. Published in Spanish in "El universo de Einstein: 1905 - annus mirabilis - 2005", Alejandro Gangui (ed.), Editorial EUDEBA, 2007. Also available at this http URL arXiv:0705.4446 [pdf]

  • Signatures of non-locality in the first-order coherence of the scattered light. Priscilla Cañizares, Tobias Görler, Juan Pablo Paz, Giovanna Morigi, Wolfgang Schleich. Laser Physics 17, 903-907 (special issue in memory of Herbert Walther). arXiv:quant-ph/0703109 [ps, pdf, other]


  • Decoherence induced by a chaotic environment: A quantum walker with a complex coin. Leonardo Ermann, Juan Pablo Paz, Marcos Saraceno. Phys. Rev. A 73, 012302. arXiv:quant-ph/0510037 [ps, pdf, other]

  • Classicality in discrete Wigner functions. Cecilia Cormick, Ernesto F. Galvao, Daniel Gottesman, Juan Pablo Paz, Arthur O. Pittenger. Phys. Rev. A 73, 012301. arXiv:quant-ph/0506222 [ps, pdf, other]


Latest News

Nature Comm Publication

New publication on the measurement of work at the quantum level by Federico, Augusto, Juan Pablo and collaborators.

 termo experiment