Entanglement enhanced atomic gyroscope
arXiv:1003.3587 · doi:10.1103/PhysRevA.81.043624
Abstract
The advent of increasingly precise gyroscopes has played a key role in the technological development of navigation systems. Ring-laser and fibre-optic gyroscopes, for example, are widely used in modern inertial guidance systems and rely on the interference of unentangled photons to measure mechanical rotation. The sensitivity of these devices scales with the number of particles used as . Here we demonstrate how, by using sources of entangled particles, it is possible to do better and even achieve the ultimate limit allowed by quantum mechanics where the precision scales as 1/N. We propose a gyroscope scheme that uses ultra-cold atoms trapped in an optical ring potential.
19 pages, 2 figures
References in corpus (10)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Squeezing and entanglement in a Bose-Einstein condensate
- Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
- Optimal Quantum Phase Estimation
- Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
- Entangled Fock states for Robust Quantum Optical Metrology, Imaging, and Sensing
- Quantum Metrology: Dynamics vs. Entanglement
- Extended Coherence Time with Atom-Number Squeezed Sources
- Non-Linear Beam Splitter in Bose-Einstein Condensate Interferometers
- Persistent current of atoms in a ring optical lattice
Cited by in corpus (25)
- Quantum metrology with entangled coherent states
- Distributed Quantum Metrology and the Entangling Power of Linear Networks
- Quantum Fisher information of entangled coherent state in the presence of photon losses: exact solution
- Quantum metrology for non-linear phase shifts with entangled coherent states
- Optical interferometry in the presence of large phase diffusion
- Review: Quantum Metrology and Sensing with Many-Body Systems
- Maximal quantum Fisher information for phase estimation without initial parity
- Quantum Enhanced Measurement of Rotations with a Spin-1 Bose-Einstein Condensate in a Ring Trap
- Robust quantum enhanced phase estimation in a multimode interferometer
- Nonadiabatic creation of macroscopic superpositions with strongly correlated 1D bosons on a ring trap
- Geometric phases and the Sagnac effect: Foundational aspects and sensing applications
- Extent of Fock-exchange mixing for a hybrid van der Waals density functional?
- Macroscopic two-state systems in trapped atomic condensates
- Generation of single and two-mode multiphoton states in waveguide QED
- Quantum-limited measurement of magnetic-field gradient with entangled atoms
- Engineering mesoscopic superpositions of superfluid flow
- Quantum-enhanced gyroscopy with rotating anisotropic Bose--Einstein condensates
- Phase Estimation with Non-Unitary Interferometers: Information as a Metric
- Non-Markovian effect on quantum optical metrology under dissipative environment
- Exceptional point enhanced optical gyroscope in mechanical PT-symmetric system
- Enhancing the sensitivity of rotation in a multi-atom Sagnac interferometer
- Engineering entanglement for metrology with rotating matter waves
- Optimal quantum phase estimation in an atomic gyroscope based on Bose-Hubbard model
- Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
- Enhanced quantum phase estimation with -deformed nonideal nonclassical light