Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Bowles, D. C., Caratsch, G. L., Chanel, E., Chen, W., Chiu, P. -J., Crawford, C., Dechenaux, B., Doorenbos, C. B., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Flaux, P., Fratangelo, A., Goupillière, D., Griffith, W. C., Höhl, D., Kasprzak, M., Kirch, K., Kletzl, V., Komposch, S. V., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Lejuez, A., Li, R., Meier, M., Menu, J., Michielsen, K., Mullan, P., Mullins, A., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Quemener, G., Rawlik, M., Rebreyend, D., Rienaecker, I., Ries, D., Roccia, S., Rozpedzik, D., Schnabel, A., Schmidt-Wellenburg, P., Segarra, E. P., Severijns, N., Smith, C. A., Svirina, K., Tavakoli, R., Thorne, J., Touati, S., Vankeirsbilck, J., Virot, R., Voigt, J., Wursten, E., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, Nuclear Experiment

Access URL: http://arxiv.org/abs/2410.07914

Achieving ultra-low and -uniform residual magnetic fields in a very large magnetically shielded room for fundamental physics experiments

Authors: Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Bowles, D., Chanel, E., Chen, W., Chiu, P. -J., Crawford, C. B., Naviliat-Cuncic, O., Doorenbos, C. B., Emmenegger, S., Fertl, M., Fratangelo, A., Griffith, W. C., Grujic, Z. D., Harris, P. G., Kirch, K., Kletzl, V., Krempel, J., Lauss, B., Lefort, T., Lejuez, A., Li, R., Mullan, P., Pacura, S., Pais, D., Piegsa, F. M., Rienäcker, I., Ries, D., Pignol, G., Rebreyend, D., Roccia, S., Rozpedzik, D., Saenz-Arevalo, W., Schmidt-Wellenburg, P., Schnabel, A., Segarra, E. P., Severijns, N., Svirina, K., Dinani, R. Tavakoli, Thorne, J., Vankeirsbilck, J., Voigt, J., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/2309.16877

A large 'Active Magnetic Shield' for a high-precision experiment

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Chanel, E., Chen, J., Chen, W., Chiu, P. -J., Crawford, C. B., Daum, M., Doorenbos, C. B., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Fratangelo, A., Griffith, W. C., Grujic, Z. D., Harris, P., Kirch, K., Kletzl, V., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Mullan, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rienäcker, I., Ries, D., Roccia, S., Rozpedzik, D., Saenz-Arevalo, W., Schmidt-Wellenburg, P., Schnabel, A., Segarra, E. P., Severijns, N., Shelton, T., Svirina, K., Dinani, R. Tavakoli, Thorne, J., Virot, R., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/2307.07588

Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI

Authors: Ayres, N. J., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Chanel, E., Chiu, P. -J., Clement, B., Crawford, C. B., Daum, M., Doorenbos, C. B., Emmenegger, S., Fertl, M., Flaux, P., Griffith, W. C., Harris, P. G., Hild, N., Kasprzak, M., Kirch, K., Kletzl, V., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rienäcker, I., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severijns, N., Shen, B., Svirina, K., Dinani, R. Tavakoli, Thorne, J. A., Touati, S., Weis, A., Wursten, E., Yazdandoost, N., Zejma, J., Ziehl, N., Zsigmond, G.

Subject Terms: Nuclear Experiment

Access URL: http://arxiv.org/abs/2303.18081

Search for ultralight axion dark matter in a side-band analysis of a 199Hg free-spin precession signal

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Crawford, C. B., Daum, M., Dechenaux, B., Emmenegger, S., Flaux, P., Griffith, W. C., Harris, P. G., Kermaidic, Y., Kirch, K., Komposch, S., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Naviliat-Cuncic, O., Mohanmurthy, P., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severijns, N., Stadnik, Y. V., Thorne, J. A., Weis, A., Wursten, E., Zejma, J., Zsigmond, G.

Source: SciPost Phys. 15, 058 (2023)

Subject Terms: Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Phenomenology

Access URL: http://arxiv.org/abs/2212.02403

The `n2EDM MSR' -- a very large magnetically shielded room with an exceptional performance for fundamental physics measurements

Authors: Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Clement, B., Chanel, E., Chiu, P. -J., Crawford, C. B., Daum, M., Doorenbos, C. B., Emmenegger, S., Fratangelo, A., Fertl, M., Griffith, W. C., Grujic, Z. D., Harris, P. G., Kirch, K., Krempel, J., Lauss, B., Lefort, T., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rauscher, G., Rebreyend, D., Rienäcker, I., Ries, D., Roccia, S., Rozpedzik, D., Saenz-Arevalo, W., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Shen, B., Staab, M., Svirina, K., Dinani, R. Tavakoli, Thorne, J., Yazdandoost, N., Zejma, J., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/2206.10714

Improved search for neutron to mirror-neutron oscillations in the presence of mirror magnetic fields with a dedicated apparatus at the PSI UCN source

Authors: Ayres, N. J., Berezhiani, Z., Biondi, R., Bison, G., Bodek, K., Bondar, V., Chiu, P. -J., Daum, M., Dinani, R. T., Doorenbos, C. B., Emmenegger, S., Kirch, K., Kletzl, V., Krempel, J., Lauss, B., Pais, D., Rienaecker, I., Ries, D., Rossi, N., Rozpedzik, D., Schmidt-Wellenburg, P., Tanaka, K. S., Zejma, J., Ziehl, N., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/2111.02794

Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P. -J., Clément, B., Crawford, C. B., Daum, M., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Flaux, P., Fratangelo, A., Griffith, W. C., Grujić, Z. D., Harris, P. G., Hayen, L., Hild, N., Kasprzak, M., Kirch, K., Knowles, P., Koch, H. -C., Koss, P. A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemière, Y., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Prashanth, P. N., Quéméner, G., Rawlik, M., Ries, D., Rebreyend, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Thorne, J. A., Virot, R., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/2103.09039

Johnson-Nyquist Noise Effects in Neutron Electric-Dipole-Moment Experiments

Authors: Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chiu, P. -J., Clement, B., Crawford, C. B., Daum, M., Emmenegger, S., Fertl, M., Fratangelo, A., Griffith, W. C., Grujić, Z. D., Harris, P. G., Kirch, K., Koss, P. A., Lauss, B., Lefort, T., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rebreyend, D., Rienäcker, I., Ries, D., Roccia, S., Ross, K. U., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Shen, B., Dinani, R. Tavakoli, Thorne, J. A., Virot, R., Yazdandoost, N., Zejma, J., Zsigmond, G.

Source: Phys. Rev. A 103, 062801 (2021)

Subject Terms: Nuclear Experiment, Physics - Atomic Physics

Access URL: http://arxiv.org/abs/2102.01658

The design of the n2EDM experiment

Authors: Ayres, N. J., Ban, G., Bienstman, L., Bison, G., Bodek, K., Bondar, V., Bouillaud, T., Chanel, E., Chen, J., Chiu, P. -J., Clément, B., Crawford, C., Daum, M., Dechenaux, B., Doorenbos, C. B., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Fratangelo, A., Flaux, P., Goupillière, D., Griffith, W. C., Grujic, Z. D., Harris, P. G., Kirch, K., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Lemière, Y., Leredde, A., Meier, M., Menu, J., Mullins, D. A., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Quéméner, G., Rawlik, M., Rebreyend, D., Rienäcker, I., Ries, D., Roccia, S., Ross, K. U., Rozpedzik, D., Saenz, W., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Shen, B., Stapf, T., Svirina, K., Dinani, R. Tavakoli, Touati, S., Thorne, J., Virot, R., Voigt, J., Yazdandoost, N., Zejma, J., Zsigmond, G.

Source: Eur. Phys. J. C 81, 512 (2021)

Subject Terms: Physics - Instrumentation and Detectors, Nuclear Experiment

Access URL: http://arxiv.org/abs/2101.08730

A search for neutron to mirror-neutron oscillations

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P. -J., Crawford, C., Daum, M., Dinani, R. T., Emmenegger, S., Flaux, P., Ferraris-Bouchez, L., Griffith, W. C., Grujic, Z. D., Hild, N., Kirch, K., Koch, H. -C., Koss, P. A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Leredde, A., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rebreyend, D., Rienaecker, I., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severijns, N., Thorne, J., Weis, A., Wursten, E., Zejma, J., Zsigmond, G.

Subject Terms: High Energy Physics - Phenomenology, Nuclear Experiment, Quantum Physics

Access URL: http://arxiv.org/abs/2009.11046

Measurement of the permanent electric dipole moment of the neutron

Authors: Abel, C., Afach, S., Ayres, N. J., Baker, C. A., Ban, G., Bison, G., Bodek, K., Bondar, V., Burghoff, M., Chanel, E., Chowdhuri, Z., Chiu, P. -J., Clement, B., Crawford, C. B., Daum, M., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Flaux, P., Franke, B., Fratangelo, A., Geltenbort, P., Green, K., Griffith, W. C., van der Grinten, M., Grujić, Z. D., Harris, P. G., Hayen, L., Heil, W., Henneck, R., Hélaine, V., Hild, N., Hodge, Z., Horras, M., Iaydjiev, P., Ivanov, S. N., Kasprzak, M., Kermaidic, Y., Kirch, K., Knecht, A., Knowles, P., Koch, H. -C., Koss, P. A., Komposch, S., Kozela, A., Kraft, A., Krempel, J., Kuźniak, M., Lauss, B., Lefort, T., Lemière, Y., Leredde, A., Mohanmurthy, P., Mtchedlishvili, A., Musgrave, M., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pierre, E., Pignol, G., Plonka-Spehr, C., Prashanth, P. N., Quéméner, G., Rawlik, M., Rebreyend, D., Rienäcker, I., Ries, D., Roccia, S., Rogel, G., Rozpedzik, D., Schnabel, A., Schmidt-Wellenburg, P., Severijns, N., Shiers, D., Dinani, R. Tavakoli, Thorne, J. A., Virot, R., Voigt, J., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zenner, J., Zsigmond, G.

Source: Phys. Rev. Lett. 124, 081803 (2020)

Subject Terms: High Energy Physics - Experiment, Nuclear Experiment, Physics - Instrumentation and Detectors

Access URL: http://arxiv.org/abs/2001.11966

Data blinding for the nEDM experiment at PSI

Authors: Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P. -J., Crawford, C., Daum, M., Emmenegger, S., Ferraris-Bouchez, L., Flaux, P., Harris, P. G, Grujić, Z., Hild, N., Hommet, J., Lauss, B., Lefort, T., Lemiere, Y., Kasprzak, M., Kermaidic, Y., Kirch, K., Komposch, S., Kozela, A., Krempel, J., Leredde, A., Mohanmurthy, P., Mtchedlishvili, A., Naviliat-Cuncic, O., Pais, D., Pignol, G., Piegsa, F. M., Rawlik, M., Rebreyend, D., Rienäcker, I., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Virot, R., Weis, A., Wursten, E., Zejma, J., Zsigmond, G.

Subject Terms: Physics - Data Analysis, Statistics and Probability, High Energy Physics - Experiment, Nuclear Experiment, Physics - Instrumentation and Detectors

Access URL: http://arxiv.org/abs/1912.09244

Optically Pumped Cs Magnetometers Enabling a High-Sensitivity Search for the Neutron Electric Dipole Moment

Authors: Abel, C., Afach, S., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P. -J., Crawford, C. B., Chowdhuri, Z., Daum, M., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Franke, B., Griffith, W. C., Grujić, Z. D., Hayen, L., Hélaine, V., Hild, N., Kasprzak, M., Kermaidic, Y., Kirch, K., Knowles, P., Koch, H. -C., Komposch, S., Koss, P. A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemière, Y., Leredde, A., Mtchedlishvili, A., Mohanmurthy, P., Musgrave, M., Naviliat-Cuncic, O., Pais, D., Pazgalev, A., Piegsa, F. M., Pierre, E., Pignol, G., Prashanth, P. N., Quéméner, G., Rawlik, M., Rebreyend, D., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Dinani, R. Tavakoli, Thorne, J., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zsigmond, G.

Source: Phys. Rev. A 101, 053419 (2020)

Subject Terms: Physics - Atomic Physics, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/1912.04631

Magnetic field uniformity in neutron electric dipole moment experiments

Authors: Abel, C., Ayres, N., Baker, T., Ban, G., Bison, G., Bodek, K., Bondar, V., Crawford, C., Chiu, P. -J., Chanel, E., Chowdhuri, Z., Daum, M., Dechenaux, B., Emmenegger, S., Ferraris-Bouchez, L., Flaux, P., Geltenbort, P., Green, K., Griffith, W. C., van der Grinten, M., Harris, P. G., Henneck, R., Hild, N., Iaydjiev, P., Ivanov, S. N., Kasprzak, M., Kermaidic, Y., Kirch, K., Koch, H. -C., Komposch, S., Koss, P. A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemiere, Y., Leredde, A., Mohanmurthy, P., Pais, D., Piegsa, F. M., Pignol, G., Quéméner, G., Rawlik, M., Rebreyend, D., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Virot, R., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zsigmond, G.

Source: Phys. Rev. A 99, 042112 (2019)

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment

Access URL: http://arxiv.org/abs/1811.06085

nEDM experiment at PSI: data-taking strategy and sensitivity of the dataset

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P. -J., Daum, M., Emmenegger, S., Ferraris-Bouchez, L., Flaux, P., Harris, W. C. Griffith P. G., Hild, N., Kermaidic, Y., Kirch, K., Koss, P. A., Krempel, J., Lauss, B., Lefort, T., Lemiere, Y., Leredde, A., Mohanmurthy, P., Musgrave, M., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rebreyend, D., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Thorne, J., Virot, R., Voigt, J., Weis, A., Wursten, E., Zejma, J., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, Nuclear Experiment

Access URL: http://arxiv.org/abs/1811.04012

The n2EDM experiment at the Paul Scherrer Institute

Authors: Abel, C., Ayres, N. J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P. -J., Clement, B., Crawford, C., Daum, M., Emmenegger, S., Flaux, P., Ferraris-Bouchez, L., Griffith, W. C., Grujić, Z. D., Harris, P. G., Heil, W., Hild, N., Kirch, K., Koss, P. A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemière, Y., Leredde, A., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rebreyend, D., Ries, D., Roccia, S., Ross, K., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Thorne, J., Virot, R., Voigt, J., Weis, A., Wursten, E., Zejma, J., Zsigmond, G.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment

Access URL: http://arxiv.org/abs/1811.02340

Statistical sensitivity of the nEDM apparatus at PSI to neutron mirror-neutron oscillations

Authors: Abel, C., Ayres, N., Bison, G., Bodek, K., Bondar, V., Chiu, P. -J., Daum, M., Emmenegger, S., Flaux, P., Ferraris-Bouchez, L., Griffth, W. C., Hild, N., Kirch, K., Koss, P. A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Leredde, A., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F. M., Pignol, G., Rawlik, M., Rebreyend, D., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Thorne, J., Virot, R., Zejma, J., Zsigmond, G.

Subject Terms: Nuclear Experiment, Physics - Instrumentation and Detectors

Access URL: http://arxiv.org/abs/1811.01906

Search for vector mediator of Dark Matter production in invisible decay mode

Authors: NA64 Collaboration, Banerjee, D., Burtsev, V. E., Chumakov, A. G., Cooke, D., Crivelli, P., Depero, E., Dermenev, A. V., Donskov, S. V., Dubinin, F., Dusaev, R. R., Emmenegger, S., Fabich, A., Frolov, V. N., Gardikiotis, A., Gerassimov, S. G., Gninenko, S. N., Hosgen, M., Karneyeu, A. E., Ketzer, B., Kirpichnikov, D. V., Kirsanov, M. M., Konorov, I. V., Kovalenko, S. G., Kramarenko, V. A., Kravchuk, L. V., Krasnikov, N. V., Kuleshov, S. V., Lyubovitskij, V. E., Lysan, V., Matveev, V. A., Mikhailov, Yu. V., Peshekhonov, D. V., Polyakov, V. A., Radics, B., Rubbia, A., Samoylenko, V. D., Tikhomirov, V. O., Tlisov, D. A., Toropin, A. N., Trifonov, A. Yu., Vasilishin, B. I., Arenas, G. Vasquez, Ulloa, P.

Source: Phys. Rev. D 97, 072002 (2018)

Subject Terms: High Energy Physics - Experiment, High Energy Physics - Phenomenology

Access URL: http://arxiv.org/abs/1710.00971

Performance of Multiplexed XY Resistive Micromegas detectors in a high intensity beam

Authors: Banerjee, D., Burtsev, V., Chumakov, A., Cooke, D., Depero, E., Dermenev, A. V., Donskov, S. V., Dubinin, F., Dusaev, R. R., Emmenegger, S., Fabich, A., Frolov, V. N., Gardikiotis, A., Gninenko, S. N., Hösgen, M., Karneyeu, A. E., Ketzer, B., Kirsanov, M. M., Konorov, I. V., Kramarenko, V. A., Kuleshov, S. V., Levchenko, E., Lyubovitskij, V. E., Lysan, V., Mamon, S., Matveev, V. A., Mikhailov, Yu. V., Myalkovskiy, V. V., Peshekhonov, V. D., Peshekhonov, D. V., Polyakov, V. A., Radics, B., Rubbia, A., Samoylenko, V. D., Tikhomirov, V. O., Tlisov, D. A., Toropin, A. N., Vasilishin, B., Arenas, G. Vasquez, Ulloa, P., Crivelli, P.

Subject Terms: Physics - Instrumentation and Detectors, High Energy Physics - Experiment

Access URL: http://arxiv.org/abs/1708.04087