Large array of Schrödinger cat states facilitated by an optical waveguide
arXiv:2010.10161 · doi:10.1038/s41467-020-19030-2
Abstract
Quantum engineering using photonic structures offer new capabilities for atom-photon interactions for quantum optics and atomic physics, which could eventually lead to integrated quantum devices. Despite the rapid progress in the variety of structures, coherent excitation of the motional states of atoms in a photonic waveguide using guided modes has yet to be demonstrated. Here, we use the waveguide mode of a hollow-core photonic crystal fibre to manipulate the mechanical Fock states of single atoms in a harmonic potential inside the fibre. We create a large array of Schrödinger cat states, a quintessential feature of quantum physics and a key element in quantum information processing and metrology, of approximately 15000 atoms along the fibre by entangling the electronic state with the coherent harmonic oscillator state of each individual atom. Our results provide a useful step for quantum information and simulation with a wide range of photonic waveguide systems.
References in corpus (25)
- Reconstruction of non-classical cavity field states with snapshots of their decoherence
- Nanophotonic quantum phase switch with a single atom
- Superradiance for atoms trapped along a photonic crystal waveguide
- Efficient all-optical switching using slow light within a hollow fiber
- Strongly interacting photons in one-dimensional continuum
- Hybrid photonic-crystal fiber
- Super-radiance reveals infinite-range dipole interactions through a nanofiber
- Atom-atom interactions around the band edge of a photonic crystal waveguide
- Waveguide-coupled single collective excitation of atomic arrays
- Deterministic creation of entangled atom-light Schrödinger-cat states
- Rabi Spectroscopy and Excitation Inhomogeneity in a 1D Optical Lattice Clock
- Lamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre
- Spin-motion entanglement and state diagnosis with squeezed oscillator wavepackets
- Optical Nanofibers: a new platform for quantum optics
- Trapping single atoms on a nanophotonic circuit with configurable tweezer lattices
- Microwave control of atomic motional states in a spin-dependent optical lattice
- Long-lived mesoscopic entanglement outside the Lamb-Dicke regime
- An Atom Interferometer inside a Hollow-core Photonic Crystal Fiber
- Clocked Atom Delivery to a Photonic Crystal Waveguide
- Observing the phase space trajectory of an entangled matter wave packet
- Tailoring modal properties of inhibited-coupling guiding fibers by cladding modification
- Transporting long-lived quantum spin coherence in a photonic crystal fiber
- Zeeman-insensitive cooling of a single atom to its two-dimensional motional ground state in tightly focused optical tweezers
- Stopped and stationary light at the single-photon level inside a hollow-core fiber
- Long Light Storage Time in an Optical Fiber
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- Rapid Quantum Squeezing by Jumping the Harmonic Oscillator Frequency
- Quantum oscillator noise spectroscopy via displaced cat states
- Quantum state engineering using weak measurement
- Creation of Two-Mode Squeezed States in Atomic Mechanical Oscillators
- Atomic-scale on-demand photon polarization manipulation with high-efficiency for integrated photonic chips
- Loading and spatially-resolved characterization of a cold atomic ensemble inside a hollow-core fiber
- Spin squeezing in internal bosonic Josephson junctions via enhanced shortcuts to adiabaticity
- Enhancing fiber atom interferometer by in-fiber laser cooling
- Nonclassicalities of hybrid coherent states
- Stimulated Raman Scattering and Molecular Modulation in Anti-resonant Hollow-core Fibres
- Remotely preparing optical Schrödinger cat states via homodyne detection in nondegenerate triple-photon spontaneous downconversion
- All-optical control of thermal conduction in waveguide QED