Robust Macroscopic Matter-Wave Interferometry with Solids
- URL: http://arxiv.org/abs/2107.14794v1
- Date: Fri, 30 Jul 2021 17:52:48 GMT
- Title: Robust Macroscopic Matter-Wave Interferometry with Solids
- Authors: Julen S. Pedernales, Martin B. Plenio
- Abstract summary: We exploit the spatial correlations that are inherent in perturbations due to distant sources to reduce their impact on the visibility of interference patterns.
We develop a general framework that makes use of N+1 interferometers that may differ in their masses to correct for potential environmental fields up to order N.
We also show that the same ideas can be extended to the protection of entanglement between pairs of interferometers.
- Score: 1.90365714903665
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- 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.
Related papers
- Realizing a spatially correlated lattice interferometer [8.81055904289318]
Atom interferometers provide a powerful tool for measuring physical constants and testifying fundamental physics with unprecedented precision.
Here, we report on realizing a Ramsey-Bord'e interferometer of coherent matter waves dressed by a moving optical lattice in the gravity direction.
Our findings agree well with theoretical simulations, paving the way for high-precision interferometry with ultracold atoms.
arXiv Detail & Related papers (2024-06-24T17:54:03Z) - Phonon-induced contrast in a matter-wave interferometer [0.7874708385247352]
We study the issue of internal degrees of freedom, specifically phonon fluctuations and contrast reduction.
This work will investigate the contrast reduction caused by spin-magnetic field and diamagnetic interactions at the phonon occupation level.
arXiv Detail & Related papers (2024-04-05T16:42:11Z) - Decoherence of a matter-wave interferometer due to dipole-dipole
interactions [0.0]
We will study the decoherence of the matter-wave interferometer due to dipole-dipole interactions.
We will conclude by applying the obtained formulae to estimate the dipole-dipole decoherence rate for the Quantum Gravity-induced Entanglement of Masses protocol.
arXiv Detail & Related papers (2023-07-13T18:02:48Z) - Tunneling Gravimetry [58.80169804428422]
We examine the prospects of utilizing matter-wave Fabry-P'erot interferometers for enhanced inertial sensing applications.
Our study explores such tunneling-based sensors for the measurement of accelerations in two configurations.
arXiv Detail & Related papers (2022-05-19T09:22:11Z) - Noise-resilient Edge Modes on a Chain of Superconducting Qubits [103.93329374521808]
Inherent symmetry of a quantum system may protect its otherwise fragile states.
We implement the one-dimensional kicked Ising model which exhibits non-local Majorana edge modes (MEMs) with $mathbbZ$ parity symmetry.
MEMs are found to be resilient against certain symmetry-breaking noise owing to a prethermalization mechanism.
arXiv Detail & Related papers (2022-04-24T22:34:15Z) - Two-colour spectrally multimode integrated SU(1,1) interferometer [77.34726150561087]
We develop and investigate an integrated multimode two-colour SU (1,1) interferometer that operates in a supersensitive mode.
By ensuring a proper design of the integrated platform, we suppress dispersion and thereby significantly increase the visibility of the interference pattern.
We demonstrate that such an interferometer overcomes the classical phase sensitivity limit for wide parametric gain ranges, when up to $3*104$ photons are generated.
arXiv Detail & Related papers (2022-02-10T13:30:42Z) - Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator.
We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
arXiv Detail & Related papers (2021-07-23T07:30:57Z) - Aligning an optical interferometer with beam divergence control and
continuous action space [64.71260357476602]
We implement vision-based alignment of an optical Mach-Zehnder interferometer with a confocal telescope in one arm.
In an experimental evaluation, the agent significantly outperforms an existing solution and a human expert.
arXiv Detail & Related papers (2021-07-09T14:23:01Z) - Ultracold atom interferometry in space [0.0]
Bose-Einstein condensates (BECs) in free fall constitute a promising source for space-borne matter-wave interferometry.
Our work establishes matter-wave interferometry in space with future applications in fundamental physics, navigation and Earth observation.
arXiv Detail & Related papers (2021-01-04T13:50:38Z) - Spectrally multimode integrated SU(1,1) interferometer [50.591267188664666]
The presented interferometer includes a polarization converter between two photon sources and utilizes a continuous-wave (CW) pump.
We show that this configuration results in almost perfect destructive interference at the output and supersensitivity regions below the classical limit.
arXiv Detail & Related papers (2020-12-07T14:42:54Z) - Dynamics of spatially indistinguishable particles and entanglement
protection [0.0]
We study the dynamics of two identical qubits under paradigmatic Markovian noises.
We find that spatial inability of identical qubits is a controllable intrinsic property of the system.
arXiv Detail & Related papers (2020-08-17T16:55:22Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.