Robust Macroscopic Matter-Wave Interferometry with Solids
arXiv:2107.14794 · doi:10.1103/PhysRevA.105.063313
Abstract
Matter-wave interferometry with solids is highly susceptible to minute fluctuations of environmental fields, including gravitational effects from distant sources. Hence, experiments require a degree of shielding that is extraordinarily challenging to achieve in realistic terrestrial or even space-based set-ups. Here, we design protocols that exploit the spatial correlations that are inherent in perturbations due to distant sources to reduce significantly their impact on the visibility of interference patterns. We show that interference patterns that are robust to such type of noise can be encoded in the joint probability distribution of two or more interferometers, provided that these are initialized in suitable states. We develop a general framework that makes use of N+1 interferometers that may differ in their masses to correct for environmental potential fields up to order N in their multipole expansion. Remarkably, our approach works for fields that fluctuate stochastically in any time scale and does not require the presence of quantum correlations among the different interferometers. Finally, we also show that the same ideas can be extended to the protection of entanglement between pairs of interferometers.
arXiv comment9 pages, 3 figures
References in corpus (34)
- Cavity Optomechanics
- Laser cooling of a nanomechanical oscillator into its quantum ground state
- Sideband Cooling Micromechanical Motion to the Quantum Ground State
- The logarithmic negativity: A full entanglement monotone that is not convex
- Atom Interferometers
- Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
- Towards quantum superpositions of a mirror
- Motional Quantum Ground State of a Levitated Nanoparticle from Room Temperature
- Remote quantum entanglement between two micromechanical oscillators
- Entangled massive mechanical oscillators
- Sensitive Absolute Gravity Gradiometry Using Atom Interferometry
- Large Quantum Superpositions and Interference of Massive Nanometer-Sized Objects
- Measurements of Relative Phase in Binary Mixtures of Bose-Einstein Condensates
- Testing the limits of quantum mechanical superpositions
- Levitodynamics: Levitation and control of microscopic objects in vacuum
- Matter-wave interference with particles selected from a molecular library with masses exceeding 10000 amu
- Optomechanics with Levitated Particles
- Ponderomotive Control of Quantum Macroscopic Coherence
- A Scheme to Probe the Decoherence of a Macroscopic Object
- Quantum Superposition of Massive Objects and Collapse Models
- Large quantum superpositions of a levitated nanodiamond through spin-optomechanical coupling
- Matter Wave Interferometry of a Levitated Thermal Nano-Oscillator Induced and Probed by a Spin
- Large Quantum Delocalization of a Levitated Nanoparticle using Optimal Control: Applications for Force Sensing and Entangling via Weak Forces
- On-chip quantum interference of a superconducting microsphere
- A micromechanical proof-of-principle experiment for measuring the gravitational force of milligram masses
- Gravimetry through non-linear optomechanics
- Motional Dynamical Decoupling for Matter-Wave Interferometry
- Using an atom interferometer to infer gravitational entanglement generation
- Enhancing Gravitational Interaction between Quantum Systems by a Massive Mediator
- Testing quantum gravity by nanodiamond interferometry with nitrogen-vacancy centers
- Quantum sensing with nanoparticles for gravimetry; when bigger is better
- Enhanced force sensitivity and entanglement in periodically driven optomechanics
- On the Significance of Interferometric Revivals for the Fundamental Description of Gravity
- Decoherence-Free Rotational Degrees of Freedom for Quantum Applications