619 citations · 800 across the 15 of their papers we have counts for
17 papers
Dressed-State Spectroscopy of Proton Spins in Water Beyond the Rotating-Wave Approximation
Ivo Schulthess, Anastasio Fratangelo, Patrick Hautle +6
The quantum Rabi model provides the framework for describing a two-level system interacting with a strong oscillating field beyond the rotating-wave approximation. We report the fi…
Simulation and optimization of the Active Magnetic Shield of the n2EDM experiment
N. J. Ayres, G. Ban, G. Bison +47
The n2EDM experiment at the Paul Scherrer Institute aims to conduct a high-sensitivity search for the electric dipole moment of the neutron. Magnetic stability and control are achi…
Measurement of the neutron incoherent scattering length of Hg using stored ultracold neutrons
C. Abel, K. Bodek, E. Chanel +35
We present the first direct measurement of the neutron incoherent scattering length of Hg. The measurement was performed with the Ramsey apparatus of the neutron electric…
Ultracold neutron energy spectrum and storage properties from magnetically induced spin depolarization
N. J. Ayres, G. Ban, G. Bison +53
We present a novel method for extracting the energy spectrum of ultracold neutrons from magnetically induced spin depolarization measurements using the n2EDM apparatus. This method…
Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment
C. Abel, N. J. Ayres, G. Ban +63
We present a coil system designed to generate a highly uniform magnetic field for the n2EDM experiment at the Paul Scherrer Institute. It consists of a main coil and a set of…
Frequency-offset separated oscillatory fields technique applied to neutrons
Anastasio Fratangelo, Philipp Heil, Christine Klauser +6
The novel technique of frequency-offset separated oscillatory fields (FOSOF) has been originally proposed as a modification to Ramsey's method of separated oscillatory fields. It h…
Achieving ultra-low and -uniform residual magnetic fields in a very large magnetically shielded room for fundamental physics experiments
N. J. Ayres, G. Ban, G. Bison +47
High-precision searches for an electric dipole moment of the neutron (nEDM) require stable and uniform magnetic field environments. We present the recent achievements of degaussing…
A large 'Active Magnetic Shield' for a high-precision experiment
C. Abel, N. J. Ayres, G. Ban +48
We present a novel Active Magnetic Shield (AMS), designed and implemented for the n2EDM experiment at the Paul Scherrer Institute. The experiment will perform a high-sensitivity se…
Resonant Cancellation Effect in Ramsey-type Nuclear Magnetic Resonance Experiments
Ivo Schulthess, Ivan Calic, Estelle Chanel +8
We investigate the response of a Ramsey-type experiment on an additional oscillating magnetic field. This superimposed field is oriented in the same direction as the static main ma…
A Ramsey apparatus for proton spins in flowing water
Ivo Schulthess, Anastasio Fratangelo, Patrick Hautle +6
We present an apparatus that applies Ramsey's method of separated oscillatory fields to proton spins in water molecules. The setup consists of a water circuit, a spin polarizer, a…
Particle Physics at the European Spallation Source
H. Abele, A. Alekou, A. Algora +176
Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physic…
The `n2EDM MSR' -- a very large magnetically shielded room with an exceptional performance for fundamental physics measurements
N. J. Ayres, G. Ban, G. Bison +41
We present the magnetically shielded room (MSR) for the n2EDM experiment at the Paul Scherrer Institute which features an interior cubic volume with each side of length 2.92m, thus…
New Limit on Axion-Like Dark Matter using Cold Neutrons
Ivo Schulthess, Estelle Chanel, Anastasio Fratangelo +8
We report on a search for dark matter axion-like particles (ALPs) using a Ramsey-type apparatus for cold neutrons. A hypothetical ALP-gluon-coupling would manifest in a neutron ele…
Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment
C. Abel, N. J. Ayres, G. Ban +50
Experiments dedicated to the measurement of the electric dipole moment of the neutron require outstanding control of the magnetic field uniformity. The neutron electric dipole mome…
Johnson-Nyquist Noise Effects in Neutron Electric-Dipole-Moment Experiments
N. J. Ayres, G. Ban, G. Bison +37
Magnetic Johnson-Nyquist noise (JNN) originating from metal electrodes, used to create a static electric field in neutron electric-dipole-moment (nEDM) experiments, may limit the s…
The design of the n2EDM experiment
N. J. Ayres, G. Ban, L. Bienstman +58
We present the design of a next-generation experiment, n2EDM, currently under construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim of carr…
Measurement of the permanent electric dipole moment of the neutron
C. Abel, S. Afach, N. J. Ayres +81
We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magn…