Magnetic-field gradiometer based on ultracold collisions
arXiv:1803.03024 · doi:10.1103/PhysRevA.97.052701
Abstract
We present a detailed analysis of the usefulness of ultracold atomic collisions for sensing the strength of an external magnetic field as well as its spatial gradient. The core idea of the sensor, which we recently proposed in K. Jachymski \emph{et al.}, Phys. Rev. Lett. {\bf 120}, 013401 (2018), is to probe the transmission of the atoms through a set of quasi-one-dimensional waveguides that contain an impurity. Magnetic field-dependent interactions between the incoming atoms and the impurity naturally lead to narrow resonances that can act as sensitive field probes since they strongly affect the transmission. We illustrate our findings with concrete examples of experimental relevance, demonstrating that a sensitivity of the order of 1 nT for the field strength and for the gradient can be reached using our scheme.
References in corpus (46)
- Feshbach Resonances in Ultracold Gases
- Quantum-enhanced measurements: beating the standard quantum limit
- Quantum metrology
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- An Optical Lattice Clock with Accuracy and Stability at the Level
- Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
- Atom chip based generation of entanglement for quantum metrology
- Systematic evaluation of an atomic clock at 2e-18 total uncertainty
- A Search for Time Variation of the Fine Structure Constant
- Quantum noise limited and entanglement-assisted magnetometry
- Quantum Metrology for Gravitational Wave Astronomy
- Atom-Atom Scattering Under Cylindrical Harmonic Confinement: Numerical and Analytical Studies of the Confinement Induced Resonance
- Quantum Test of the Universality of Free Fall
- New Limits on Coupling of Fundamental Constants to Gravity Using Sr Optical Lattice Clocks
- Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
- Long-lived Bloch oscillations with bosonic Sr atoms and application to gravity measurement at micrometer scale
- Quantum test of the equivalence principle for atoms in superpositions of internal energy eigenstates
- Testing Gravity with Cold-Atom Interferometers
- Spin squeezing of atomic ensembles via nuclear-electronic spin entanglement
- Bloch oscillations in the absence of a lattice
- Bounds on fifth forces from precision measurements on molecules
- Tuning the interactions of spin-polarized fermions using quasi-one-dimensional confinement
- 0.75 atoms improve the clock signal of 10,000 atoms
- A quantum sensor: simultaneous precision gravimetry and magnetic gradiometry with a Bose-Einstein condensate
- Useful Multiparticle Entanglement and Sub-Shot-Noise Sensitivity in Experimental Phase Estimation
- Three-dimensional strong localization of matter waves by scattering from atoms in a lattice with a confinement-induced resonance
- Enhancement of variation of fundamental constants in ultracold atom and molecule systems near Feshbach resonances
- Non-invasive detection of animal nerve impulses with an atomic magnetometer operating near quantum limited sensitivity
- Suppression of Quantum Scattering in Strongly Confined Systems
- Effective-range description of a Bose gas under strong one- or two-dimensional confinement
- Single shot parameter estimation via continuous quantum measurement
- Dipolar confinement-induced resonances of ultracold gases in waveguides
- Manipulation of p-wave scattering of cold atoms in low dimensions using the magnetic field vector
- Low-entropy states of neutral atoms in polarization-synthesized optical lattices
- Coupled -wave confinement-induced resonances in cylindrically symmetric waveguides
- Magnetometry via a double-pass continuous quantum measurement of atomic spin
- Entanglement-enhanced radio-frequency field detection and waveform sensing
- Magnetometry with entangled atomic samples
- Estimation of fluctuating magnetic fields by an atomic magnetometer
- Confinement-Induced Resonances in Ultracold Atom-Ion Systems
- Reactive collisions in confined geometries
- Estimation of classical parameters via continuous probing of complementary quantum observables
- An analytical approach to atomic multichannel collisions in tight harmonic waveguides
- Energy dependent -wave confinement-induced resonances
- Single-atom transistor as a precise magnetic field sensor
- Ultracold atoms in quasi-1D traps: a step beyond the Lieb-Liniger model