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EPJ Quantum Technology
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  1. The challenges faced in a comparison of measuring the detection efficiency of free-running InGaAs/InP single-photon avalanche detectors (InGaAs/InP SPAD) were studied by four European National Metrology Instit...

    Authors: M. López, A. Meda, G. Porrovecchio, R. A. Starkwood (Kirkwood), M. Genovese, G. Brida, M. Šmid, C. J. Chunnilall, I. P. Degiovanni and S. Kück

    Citation: EPJ Quantum Technology 2020 7:14

    Content type: Research

    Published on:

  3. Spatial quantitative information about magnetic nanoparticle (MNP) distributions is a prerequisite for biomedical applications like magnetic hyperthermia and magnetic drug targeting. This information can be ga...

    Authors: Aaron Jaufenthaler, Volkmar Schultze, Theo Scholtes, Christian B. Schmidt, Michael Handler, Ronny Stolz and Daniel Baumgarten

    Citation: EPJ Quantum Technology 2020 7:12

    Content type: Research

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  4. An array of 21 first-order gradiometers based on zero-field optically-pumped magnetometers is demonstrated for use in magnetoencephalography. Sensors are oriented radially with respect to the head and housed i...

    Authors: N. V. Nardelli, A. R. Perry, S. P. Krzyzewski and S. A. Knappe

    Citation: EPJ Quantum Technology 2020 7:11

    Content type: Research

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  5. The Hanbury Brown and Twiss (HBT) interferometer was proposed to observe intensity correlations of starlight to measure a star’s angular diameter. As the intensity of light that reaches the detector from a sta...

    Authors: Xiaoping Ma, Chenglong You, Sushovit Adhikari, Yongjian Gu, Omar S. Magaña-Loaiza, Jonathan P. Dowling and Hwang Lee

    Citation: EPJ Quantum Technology 2020 7:10

    Content type: Research

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  8. Quantum computers (QC), if realized, could disrupt many computationally intense fields of science. The building block element of a QC is a quantum bit (qubit). Qubits enable the use of quantum superposition an...

    Authors: S. V. Kutsaev, K. Taletski, R. Agustsson, P. Carriere, A. N. Cleland, Z. A. Conway, É. Dumur, A. Moro and A. Yu. Smirnov

    Citation: EPJ Quantum Technology 2020 7:7

    Content type: Research

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  9. We propose in this White Paper a concept for a space experiment using cold atoms to search for ultra-light dark matter, and to detect gravitational waves in the frequency range between the most sensitive range...

    Authors: Yousef Abou El-Neaj, Cristiano Alpigiani, Sana Amairi-Pyka, Henrique Araújo, Antun Balaž, Angelo Bassi, Lars Bathe-Peters, Baptiste Battelier, Aleksandar Belić, Elliot Bentine, José Bernabeu, Andrea Bertoldi, Robert Bingham, Diego Blas, Vasiliki Bolpasi, Kai Bongs…

    Citation: EPJ Quantum Technology 2020 7:6

    Content type: Review

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  10. There are several networks of precision quantum sensors in existence, including networks of atomic clocks, magnetometers, and gravitational wave detectors. These networks can be re-purposed for searches of exo...

    Authors: Guglielmo Panelli, Benjamin M. Roberts and Andrei Derevianko

    Citation: EPJ Quantum Technology 2020 7:5

    Content type: Research

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  11. Satellite-based platforms are currently the only feasible way of achieving intercontinental range for quantum communication, enabling thus the future global quantum internet. Recent demonstrations by the Chine...

    Authors: Mateusz Polnik, Luca Mazzarella, Marilena Di Carlo, Daniel KL Oi, Annalisa Riccardi and Ashwin Arulselvan

    Citation: EPJ Quantum Technology 2020 7:3

    Content type: Research

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  12. We consider the interaction of a magnetically trapped Bose–Einstein condensate of Rubidium atoms with the stationary microwave radiation field sustained by a coplanar waveguide resonator. This coupling allows ...

    Authors: Orsolya Kálmán and Peter Domokos

    Citation: EPJ Quantum Technology 2020 7:2

    Content type: Research

    Published on:

  13. We study the quantum phase transition in the Dicke model beyond the thermodynamic limit. With the Kibble–Zurek mechanism and adiabatic dynamics, we find that the residual energy is inversely proportional to th...

    Authors: Lituo Shen, Zhicheng Shi, Zhenbiao Yang, Huaizhi Wu, Zhirong Zhong and Shibiao Zheng

    Citation: EPJ Quantum Technology 2020 7:1

    Content type: Research

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  15. In-field demonstrations in real-world scenarios boost the development of a rising technology towards its integration in existing infrastructures. Although quantum key distribution (QKD) devices are already ado...

    Authors: Davide Bacco, Ilaria Vagniluca, Beatrice Da Lio, Nicola Biagi, Adriano Della Frera, Davide Calonico, Costanza Toninelli, Francesco S. Cataliotti, Marco Bellini, Leif K. Oxenløwe and Alessandro Zavatta

    Citation: EPJ Quantum Technology 2019 6:5

    Content type: Research

    Published on:

  18. A robust cryogenic infrastructure in form of a wired, thermally optimized dilution refrigerator is essential for solid-state based quantum processors. Here, we engineer a cryogenic setup, which minimizes passi...

    Authors: S. Krinner, S. Storz, P. Kurpiers, P. Magnard, J. Heinsoo, R. Keller, J. Lütolf, C. Eichler and A. Wallraff

    Citation: EPJ Quantum Technology 2019 6:2

    Content type: Research

    Published on:

  20. We present a ground-to-space quantum key distribution (QKD) mission concept and the accompanying feasibility study for the development of the associated low earth orbit nanosatellite payload. The quantum infor...

    Authors: Erik Kerstel, Arnaud Gardelein, Mathieu Barthelemy, Matthias Fink, Siddarth Koduru Joshi and Rupert Ursin

    Citation: EPJ Quantum Technology 2018 5:6

    Content type: Research

    Published on:

  21. We show how to implement a Rindler transformation of coordinates with an embedded quantum simulator. A suitable mapping allows to realise the unphysical operation in the simulated dynamics by implementing a qu...

    Authors: Carlos Sabín

    Citation: EPJ Quantum Technology 2018 5:5

    Content type: Research

    Published on:

  22. Satellites are the most efficient way to achieve global scale quantum communication (Q.Com) because unavoidable losses restrict fiber based Q.Com to a few hundred kilometers. We demonstrate the feasibility of ...

    Authors: Sebastian Philipp Neumann, Siddarth Koduru Joshi, Matthias Fink, Thomas Scheidl, Roland Blach, Carsten Scharlemann, Sameh Abouagaga, Daanish Bambery, Erik Kerstel, Mathieu Barthelemy and Rupert Ursin

    Citation: EPJ Quantum Technology 2018 5:4

    Content type: Research

    Published on:

  23. Since the publication of the original article [Placke et al. in EPJ Quantum Technol 4:5, 2017], one of the authors noticed a typographical error to equations (11a) and (11b) in their published article [Placke et ...

    Authors: B. Placke, S. Bosco and D. P. DiVincenzo

    Citation: EPJ Quantum Technology 2018 5:3

    Content type: Correction

    Published on:

    The original article was published in EPJ Quantum Technology 2017 4:5

  25. We address the performance of a coin-biased quantum walk as a generator for non-classical position states of the walker. We exploit a phenomenon of coherent localization in the position space - resulting from the...

    Authors: Helena Majury, Joelle Boutari, Elizabeth O’Sullivan, Alessandro Ferraro and Mauro Paternostro

    Citation: EPJ Quantum Technology 2018 5:1

    Content type: Research

    Published on:

  26. Avalanche photodiodes (APDs) are a practical option for space-based quantum communications requiring single-photon detection. However, radiation damage to APDs significantly increases their dark count rates an...

    Authors: Jin Gyu Lim, Elena Anisimova, Brendon L Higgins, Jean-Philippe Bourgoin, Thomas Jennewein and Vadim Makarov

    Citation: EPJ Quantum Technology 2017 4:11

    Content type: Research

    Published on:

  27. Single-photon detectors in space must retain useful performance characteristics despite being bombarded with sub-atomic particles. Mitigating the effects of this space radiation is vital to enabling new space ...

    Authors: Elena Anisimova, Brendon L Higgins, Jean-Philippe Bourgoin, Miles Cranmer, Eric Choi, Danya Hudson, Louis P Piche, Alan Scott, Vadim Makarov and Thomas Jennewein

    Citation: EPJ Quantum Technology 2017 4:10

    Content type: Research

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  28. We present the design of a compact absolute optical frequency reference for space applications based on hyperfine transitions in molecular iodine with a targeted fractional frequency instability of better than...

    Authors: Vladimir Schkolnik, Klaus Döringshoff, Franz Balthasar Gutsch, Markus Oswald, Thilo Schuldt, Claus Braxmaier, Matthias Lezius, Ronald Holzwarth, Christian Kürbis, Ahmad Bawamia, Markus Krutzik and Achim Peters

    Citation: EPJ Quantum Technology 2017 4:9

    Content type: Research

    Published on:

  29. Low-loss waveguides are required for quantum communication at distances beyond the chip-scale for any low-temperature solid-state implementation of quantum information processors. We measure and analyze the at...

    Authors: Philipp Kurpiers, Theodore Walter, Paul Magnard, Yves Salathe and Andreas Wallraff

    Citation: EPJ Quantum Technology 2017 4:8

    Content type: Research

    Published on:

  31. Quantum communication is a prime space technology application and offers near-term possibilities for long-distance quantum key distribution (QKD) and experimental tests of quantum entanglement. However, there ...

    Authors: Daniel KL Oi, Alex Ling, Giuseppe Vallone, Paolo Villoresi, Steve Greenland, Emma Kerr, Malcolm Macdonald, Harald Weinfurter, Hans Kuiper, Edoardo Charbon and Rupert Ursin

    Citation: EPJ Quantum Technology 2017 4:6

    Content type: Research

    Published on:

  32. Stimulated by the recent implementation of a three-port Hall-effect microwave circulator of Mahoney et al. (MEA), we present model studies of the performance of this device. Our calculations are based on the capa...

    Authors: B Placke, S Bosco and DP DiVincenzo

    Citation: EPJ Quantum Technology 2017 4:5

    Content type: Research

    Published on:

    The Correction to this article has been published in EPJ Quantum Technology 2018 5:3

  33. The use of an interferometer to perform an ultra-precise parameter estimation under noisy conditions is a challenging task. Here we discuss nearly optimal measurement schemes for a well known, sensitive input ...

    Authors: Bryan T Gard, Chenglong You, Devendra K Mishra, Robinjeet Singh, Hwang Lee, Thomas R Corbitt and Jonathan P Dowling

    Citation: EPJ Quantum Technology 2017 4:4

    Content type: Research

    Published on:

  34. Quantum technologies based on adiabatic techniques can be highly effective, but often at the cost of being very slow. Here we introduce a set of experimentally realistic, non-adiabatic protocols for spatial st...

    Authors: Albert Benseny, Anthony Kiely, Yongping Zhang, Thomas Busch and Andreas Ruschhaupt

    Citation: EPJ Quantum Technology 2017 4:3

    Content type: Research

    Published on:

  35. In this paper we propose an experiment designed to observe a general-relativistic effect on single photon interference. The experiment consists of a folded Mach-Zehnder interferometer, with the arms distribute...

    Authors: Sam Pallister, Simon Coop, Valerio Formichella, Nicolas Gampierakis, Virginia Notaro, Paul Knott, Rui Azevedo, Nikolaus Buchheim, Silvio de Carvalho, Emilia Järvelä, Matthieu Laporte, Jukka-Pekka Kaikkonen, Neda Meshksar, Timo Nikkanen and Madeleine Yttergren

    Citation: EPJ Quantum Technology 2017 4:2

    Content type: Research

    Published on:

  36. Analog quantum simulators (AQS) will likely be the first nontrivial application of quantum technology for predictive simulation. However, there remain questions regarding the degree of confidence that can be p...

    Authors: Mohan Sarovar, Jun Zhang and Lishan Zeng

    Citation: EPJ Quantum Technology 2017 4:1

    Content type: Research

    Published on:

  37. Engineering a sensor system for detecting an extremely tiny signal such as the gravitational-wave force is a very important subject in quantum physics. A major obstacle to this goal is that, in a simple detect...

    Authors: Yu Yokotera and Naoki Yamamoto

    Citation: EPJ Quantum Technology 2016 3:15

    Content type: Research

    Published on:

  38. The emergence of coherent quantum feedback control (CQFC) as a new paradigm for precise manipulation of dynamics of complex quantum systems has led to the development of efficient theoretical modeling and simu...

    Authors: Mohan Sarovar, Daniel BS Soh, Jonathan Cox, Constantin Brif, Christopher T DeRose, Ryan Camacho and Paul Davids

    Citation: EPJ Quantum Technology 2016 3:14

    Content type: Research

    Published on:

  40. We present a programme for establishing the space worthiness of highly-miniaturised, polarisation-entangled, photon pair sources using CubeSat nanosatellites. Once demonstrated, the photon pair sources can be ...

    Authors: Robert Bedington, Xueliang Bai, Edward Truong-Cao, Yue Chuan Tan, Kadir Durak, Aitor Villar Zafra, James A Grieve, Daniel KL Oi and Alexander Ling

    Citation: EPJ Quantum Technology 2016 3:12

    Content type: Commentary

    Published on:

  41. We study a proof-of-principle example of the recently proposed hybrid quantum-classical simulation of strongly correlated fermion models in the thermodynamic limit. In a ‘two-site’ dynamical mean-field theory ...

    Authors: Juha M Kreula, Laura García-Álvarez, Lucas Lamata, Stephen R Clark, Enrique Solano and Dieter Jaksch

    Citation: EPJ Quantum Technology 2016 3:11

    Content type: Research

    Published on:

  42. We realize tunable coupling between two superconducting transmission line resonators. The coupling is mediated by a non-hysteretic rf SQUID acting as a flux-tunable mutual inductance between the resonators. We...

    Authors: Friedrich Wulschner, Jan Goetz, Fabian R Koessel, Elisabeth Hoffmann, Alexander Baust, Peter Eder, Michael Fischer, Max Haeberlein, Manuel J Schwarz, Matthias Pernpeintner, Edwar Xie, Ling Zhong, Christoph W Zollitsch, Borja Peropadre, Juan-Jose Garcia Ripoll, Enrique Solano…

    Citation: EPJ Quantum Technology 2016 3:10

    Content type: Research

    Published on:

  43. The possibility of using nanoelectromechanical systems as a simulation tool for quantum many-body effects is explored. It is demonstrated that an array of electrostatically coupled nanoresonators can effective...

    Authors: John Lozada-Vera, Alejandro Carrillo, Olimpio P de Sá Neto, Jalil K Moqadam, Matthew D LaHaye and Marcos C de Oliveira

    Citation: EPJ Quantum Technology 2016 3:9

    Content type: Research

    Published on:

  44. Quasiparticles in a Bose-Einstein condensate are sensitive to space-time distortions. Gravitational waves can induce transformations on the state of phonons that can be observed through quantum state discrimin...

    Authors: Carlos Sabín, Jan Kohlrus, David Edward Bruschi and Ivette Fuentes

    Citation: EPJ Quantum Technology 2016 3:8

    Content type: Letter

    Published on:

  45. Optical homodyne tomography consists in reconstructing the quantum state of an optical field from repeated measurements of its amplitude at different field phases (homodyne data). The experimental noise, which...

    Authors: Martina Esposito, Francesco Randi, Kelvin Titimbo, Georgios Kourousias, Alessio Curri, Roberto Floreanini, Fulvio Parmigiani, Daniele Fausti, Klaus Zimmermann and Fabio Benatti

    Citation: EPJ Quantum Technology 2016 3:7

    Content type: Research

    Published on:

  47. Do the laws of quantum physics still hold for macroscopic objects - this is at the heart of Schrödinger’s cat paradox - or do gravitation or yet unknown effects set a limit for massive particles? What is the f...

    Authors: Rainer Kaltenbaek, Markus Aspelmeyer, Peter F Barker, Angelo Bassi, James Bateman, Kai Bongs, Sougato Bose, Claus Braxmaier, Časlav Brukner, Bruno Christophe, Michael Chwalla, Pierre-François Cohadon, Adrian Michael Cruise, Catalina Curceanu, Kishan Dholakia, Lajos Diósi…

    Citation: EPJ Quantum Technology 2016 3:5

    Content type: Review

    Published on:

  50. Quantum metamaterials generalize the concept of metamaterials (artificial optical media) to the case when their optical properties are determined by the interplay of quantum effects in the constituent ‘artific...

    Authors: Alexandre M Zagoskin, Didier Felbacq and Emmanuel Rousseau

    Citation: EPJ Quantum Technology 2016 3:2

    Content type: Review

    Published on:

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  • ISSN: 2196-0763 (electronic)