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EPJ Quantum Technology
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  1. We present an experimental study of the longitudinal electron-spin relaxation of ensembles of negatively charged nitrogen-vacancy (NV−) centers in diamond. The measurements were performed with samples having diff...

    Authors: Mariusz Mrózek, Daniel Rudnicki, Pauli Kehayias, Andrey Jarmola, Dmitry Budker and Wojciech Gawlik

    Citation: EPJ Quantum Technology 2015 2:22

    Content type: Research

    Published on:

  2. Optimal control theory is a powerful tool for solving control problems in quantum mechanics, ranging from the control of chemical reactions to the implementation of gates in a quantum computer. Gradient-based ...

    Authors: Michael H Goerz, K Birgitta Whaley and Christiane P Koch

    Citation: EPJ Quantum Technology 2015 2:21

    Content type: Research

    Published on:

  3. The detection of single molecules has facilitated many advances in life- and material-science. Commonly the fluorescence of dye molecules is detected, which are attached to a non-fluorescent structure under st...

    Authors: Denis Uhland, Torsten Rendler, Matthias Widmann, Sang-Yun Lee, Jörg Wrachtrup and Ilja Gerhardt

    Citation: EPJ Quantum Technology 2015 2:20

    Content type: Research

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  4. Recent advances in quantum technology have demonstrated the potential use of negatively charged nitrogen-vacancy (NV−) centers in diamond for temperature and magnetic sensing at sub-cellular levels. Fluorescent n...

    Authors: Pei-Chang Tsai, Oliver Y Chen, Yan-Kai Tzeng, Yuen Yung Hui, Jiun You Guo, Chih-Che Wu, Ming-Shien Chang and Huan-Cheng Chang

    Citation: EPJ Quantum Technology 2015 2:19

    Content type: Research

    Published on:

  6. We develop a quantum learning scheme for binary discrimination of coherent states of light. This is a problem of technological relevance for the reading of information stored in a digital memory. In our settin...

    Authors: Gael Sentís, Mădălin Guţă and Gerardo Adesso

    Citation: EPJ Quantum Technology 2015 2:17

    Content type: Research

    Published on:

  7. We address quantitatively the relationship between the nonlinearity of a mechanical resonator and the nonclassicality of its ground state. In particular, we analyze the nonclassical properties of the nonlinear...

    Authors: Berihu Teklu, Alessandro Ferraro, Mauro Paternostro and Matteo G A Paris

    Citation: EPJ Quantum Technology 2015 2:16

    Content type: Research

    Published on:

  9. The purpose of this paper is to study the problem of generalizing the Belavkin-Kalman filter to the case where the classical measurement signal is replaced by a fully quantum non-commutative output signal. We ...

    Authors: Nina H Amini, Zibo Miao, Yu Pan, Matthew R James and Hideo Mabuchi

    Citation: EPJ Quantum Technology 2015 2:14

    Content type: Research

    Published on:

  10. Quantum parameter estimation, the ability to precisely obtain a classical value in a quantum system, is very important to many key quantum technologies. Many of these technologies rely on an optical probe, eit...

    Authors: Trevor A Wheatley, Mankei Tsang, Ian R Petersen and Elanor H Huntington

    Citation: EPJ Quantum Technology 2015 2:13

    Content type: Research

    Published on:

  11. Numerical methods for the 1-D Dirac equation based on operator splitting and on the quantum lattice Boltzmann (QLB) schemes are reviewed. It is shown that these discretizations fall within the class of quantum...

    Authors: Sauro Succi, François Fillion-Gourdeau and Silvia Palpacelli

    Citation: EPJ Quantum Technology 2015 2:12

    Content type: Research

    Published on:

  12. We study a novel class of open-loop control protocols constructed to perform arbitrary nontrivial single-qubit logic operations robust against time-dependent non-Markovian noise. Amplitude and phase modulation...

    Authors: Harrison Ball and Michael J Biercuk

    Citation: EPJ Quantum Technology 2015 2:11

    Content type: Research

    Published on:

  13. We present nonlinear photonic circuit models for constructing programmable linear transformations and use these to realize a coherent perceptron, i.e., an all-optical linear classifier capable of learning the ...

    Authors: Nikolas Tezak and Hideo Mabuchi

    Citation: EPJ Quantum Technology 2015 2:10

    Content type: Research

    Published on:

  14. Using the Trotter-Kato theorem we prove the convergence of the unitary dynamics generated by an increasingly singular Hamiltonian in the case of a single field coupling. The limit dynamics is a quantum stochas...

    Authors: Luc Bouten, Rolf Gohm, John Gough and Hendra Nurdin

    Citation: EPJ Quantum Technology 2015 2:9

    Content type: Research

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  15. We propose a method for the efficient quantum simulation of fermionic systems with superconducting circuits. It consists in the suitable use of Jordan-Wigner mapping, Trotter decomposition, and multiqubit gate...

    Authors: Urtzi Las Heras, Laura García-Álvarez, Antonio Mezzacapo, Enrique Solano and Lucas Lamata

    Citation: EPJ Quantum Technology 2015 2:8

    Content type: Research

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  16. We discuss the noise occurring during a classical dissipative switching process as it would be detected by a quantum bit used as a detector for noise. In particular we study the switching-induced decoherence duri...

    Authors: Ioana Serban and Frank K Wilhelm

    Citation: EPJ Quantum Technology 2015 2:7

    Content type: Research

    Published on:

  21. We develop the theory to describe the equilibrium ion positions and phonon modes for a trapped ion quantum simulator in an oblate Paul trap that creates two-dimensional Coulomb crystals in a triangular lattice...

    Authors: Bryce Yoshimura, Marybeth Stork, Danilo Dadic, Wesley C Campbell and James K Freericks

    Citation: EPJ Quantum Technology 2015 2:2

    Content type: Research

    Published on:

  22. We study the out-of-equilibrium dynamics of bosonic atoms in a 1D optical lattice, after the ground-state is excited by a single spontaneous emission event, i.e. after an absorption and re-emission of a lattic...

    Authors: Johannes Schachenmayer, Lode Pollet, Matthias Troyer and Andrew J Daley

    Citation: EPJ Quantum Technology 2015 2:1

    Content type: Research

    Published on:

  23. The key dynamic properties of fermionic systems, like controllability, reachability, and simulability, are investigated in a general Lie-theoretical frame for quantum systems theory. It just requires knowing d...

    Authors: Zoltán Zimborás, Robert Zeier, Michael Keyl and Thomas Schulte-Herbrüggen

    Citation: EPJ Quantum Technology 2014 1:11

    Content type: Research

    Published on:

  24. Schemes of universal quantum computation in which the interactions between the computational elements, in a computational register, are mediated by some ancillary system are of interest due to their relevance ...

    Authors: Timothy J Proctor and Viv Kendon

    Citation: EPJ Quantum Technology 2014 1:13

    Content type: Research

    Published on:

  25. We study a quantum quench in the Bose-Hubbard model where the tunneling rate J is suddenly switched from zero to a finite value in the Mott regime. In order to solve the many-body quantum dynamics far from equili...

    Authors: Konstantin V Krutitsky, Patrick Navez, Friedemann Queisser and Ralf Schützhold

    Citation: EPJ Quantum Technology 2014 1:12

    Content type: Research

    Published on:

  26. Quantum simulators are devices that actively use quantum effects to answer questions about model systems and, through them, real systems. In this review we expand on this definition by answering several fundam...

    Authors: Tomi H Johnson, Stephen R Clark and Dieter Jaksch

    Citation: EPJ Quantum Technology 2014 1:10

    Content type: Review

    Published on:

  28. We consider a quarter wave coplanar microwave cavity terminated to ground via asuperconducting quantum interference device. By modulating the flux through the loop,the cavity frequency is modulated. The flux i...

    Authors: Charles H Meaney, Hyunchul Nha, Timothy Duty and Gerard J Milburn

    Citation: EPJ Quantum Technology 2014 1:7

    Content type: Research

    Published on:

  32. Arrays of circuit cavities offer fascinating perspectives for exploring quantum many-body systems in a driven dissipative regime where excitation losses are continuously compensated by coherent input drives. H...

    Authors: Robert Jirschik and Michael J Hartmann

    Citation: EPJ Quantum Technology 2014 1:4

    Content type: Research

    Published on:

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  • ISSN: 2196-0763 (electronic)