Time-of-Flight Quantum Tomography of Single Atom Motion
- URL: http://arxiv.org/abs/2203.03053v2
- Date: Thu, 7 Apr 2022 14:18:01 GMT
- Title: Time-of-Flight Quantum Tomography of Single Atom Motion
- Authors: M. O. Brown, S. R. Muleady, W. J. Dworschack, R. J. Lewis-Swan, A. M.
Rey, O. Romero-Isart, C. A. Regal
- Abstract summary: We show time-of-flight imaging can realize tomography of a quantum state of motion of a single trapped atom.
Tomography of motion requires studying the phase space spanned by both position and momentum.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Time of flight is an intuitive way to determine the velocity of particles and
lies at the heart of many capabilities ranging from mass spectrometry to fluid
flow measurements. Here we show time-of-flight imaging can realize tomography
of a quantum state of motion of a single trapped atom. Tomography of motion
requires studying the phase space spanned by both position and momentum. By
combining time-of-flight imaging with coherent evolution of the atom in an
optical tweezer trap, we are able to access arbitrary quadratures in phase
space without relying on coupling to a spin degree of freedom. To create
non-classical motional states, we harness quantum tunneling in the versatile
potential landscape of optical tweezers, and our tomography both demonstrates
Wigner function negativity and assesses coherence of non-stationary states. Our
demonstrated tomography concept has wide applicability to a range of particles
and will enable characterization of non-classical states of more complex
systems or massive dielectric particles.
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