Erasure-cooling, control, and hyper-entanglement of motion in optical tweezers

AL Shaw, P Scholl, R Finkelstein, RBS Tsai… - arXiv preprint arXiv …, 2023 - arxiv.org
We demonstrate how motional degrees of freedom in optical tweezers can be used as
quantum information carriers. To this end, we first implement a species-agnostic cooling …

How to measure the momentum of single quanta

JK Freericks - The European Physical Journal Special Topics, 2023 - Springer
The von Neumann theory of measurement, based on an ultimate entanglement of the
quantum observable with a classical machine followed by decoherence or collapse, does …

Molecular dynamics in Rydberg tweezer arrays: Spin-phonon entanglement and Jahn-Teller effect

M Magoni, R Joshi, I Lesanovsky - Physical Review Letters, 2023 - APS
Atoms confined in optical tweezer arrays constitute a platform for the implementation of
quantum computers and simulators. State-dependent operations are realized by exploiting …

Macroscopic quantum superpositions via dynamics in a wide double-well potential

M Roda-Llordes, A Riera-Campeny, D Candoli… - Physical Review Letters, 2024 - APS
We present an experimental proposal for the rapid preparation of the center of mass of a
levitated particle in a macroscopic quantum state, that is a state delocalized over a length …

Non-local temporal interference

A Ayatollah Rafsanjani, MJ Kazemi, V Hosseinzadeh… - Scientific Reports, 2024 - nature.com
Although position and time have different mathematical roles in quantum mechanics, with
one being an operator and the other being a parameter, there is a space–time duality in …

Direct measurement of the Wigner function of atoms in an optical trap

FR Winkelmann, CA Weidner, G Ramola… - Journal of Physics B …, 2022 - iopscience.iop.org
We present a scheme to directly probe the Wigner function of the motional state of a neutral
atom confined in an optical trap. The proposed scheme relies on the well-established fact …

Strong Spin-Motion Coupling in the Ultrafast Dynamics of Rydberg Atoms

V Bharti, S Sugawa, M Kunimi, VS Chauhan… - Physical Review Letters, 2024 - APS
Rydberg atoms in optical lattices and tweezers is now a well-established platform for
simulating quantum spin systems. However, the role of the atoms' spatial wave function has …

Phase-space distributions of Bose–Einstein condensates in an optical lattice: optimal shaping and reconstruction

N Dupont, F Arrouas, L Gabardos… - New Journal of …, 2023 - iopscience.iop.org
We apply quantum optimal control to shape the phase-space distribution of Bose–Einstein
condensates in a one-dimensional optical lattice. By a time-dependent modulation of the …

Bosonic quantum error correction with neutral atoms in optical dipole traps

LH Bohnmann, DF Locher, J Zeiher… - arXiv preprint arXiv …, 2024 - arxiv.org
Bosonic quantum error correction codes encode logical qubits in the Hilbert space of one or
multiple harmonic oscillators. A prominent class of bosonic codes are Gottesman-Kitaev …

Nonclassicality of entangled Schrödinger cat states associated to generalized displaced Fock states

SR Miry, MJ Faghihi, H Mahmoudi - Physica Scripta, 2023 - iopscience.iop.org
In this paper, we introduce some distinct classes of entangled cat states associated to
generalized displaced Fock states. For this purpose, we use the formalism of nonlinear …