Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:quant-ph/0105131 · Physical Review A

Synthesis and characterization of entangled mesoscopic superpositions for a trapped electron

Michol Massini, Mauro Fortunato, Stefano Mancini, Paolo Tombesi

Published Sep 19, 2000• 10 citations
arXivHTMLPDF

Abstract

We propose a scheme for the generation and reconstruction of entangled states between the internal and external (motional) degrees of freedom of a trapped electron. Such states also exhibit quantum coherence at a mesoscopic level.
DOI
10.1103/physreva.62.041401

Related papers

Mesoscopic Superpositions of Vibronic Collective States of N Trapped Ions

E. Solano, R. L. de Matos Filho, Nicim Zagury

We propose a scalable procedure to generate superpositions of motional coherent states and also entangled vibronic states in N trapped ions. Beyond their fundamental importance, these states may be of interest for quantum information processing and may be used in experimental studies on decoherence.

arXiv:quant-ph/0101056•Physical Review Letters•Jul 19, 2001•73 citations

Reconstruction Technique for a Trapped Electron

M. Fortunate, Michol Massini, Stefano Mancini +2 more

We propose a measurement method for the reconstruction of entangled states (spin-cyclotron) of a trapped electron.

Kluwer Academic Publishers eBooks•Feb 24, 2006•0 citations

A “Schrödinger Cat” Superposition State of an Atom

Christopher R. Monroe, D. M. Meekhof, B. E. King +1 more

A "Schrodinger cat"-like state of matter was generated at the single atom level. A trapped 9Be+ ion was laser-cooled to the zero-point energy and then prepared in a superposition of spatially separated coherent harmonic oscillator states. This state was created by application of a sequence of laser pulses, which entangles internal (electronic) and external (motional) states of the ion. The Schrodinger cat superposition was verified by detection of the quantum mechanical interference between the localized wave packets. This mesoscopic system may provide insight into the fuzzy boundary between the classical and quantum worlds by allowing controlled studies of quantum measurement and quantum decoherence.

Science•May 24, 1996•1,313 citations

Superposition and entanglement of mesoscopic squeezed vacuum states in cavity QED (4 pages)

C.-y. Chen

Physical Review A•Jan 1, 2006•0 citations

Quantum superpositions of crystalline structures

Jens D. Baltrusch, Cecilia Cormick, Gabriele De Chiara +2 more

A procedure is discussed for creating coherent superpositions of motional states of ion strings. The motional states are across the structural transition linear-zigzag, and their coherent superposition is achieved by means of spin-dependent forces, such that a coherent superposition of the electronic states of one ion evolves into an entangled state between the chain's internal and external degrees of freedom. It is shown that the creation of such an entangled state can be revealed by performing Ramsey interferometry with one ion of the chain.

arXiv:1109.6906•Physical Review A•Dec 8, 2011•31 citations

Generating mesoscopic entanglement of coherence and squeezed states in circuit QED system

Ying-Yan Zhao, Nian-Quan Jiang

Physics Letters A•Oct 29, 2012•4 citations
A "Schrodinger cat"-like state of matter was generated at the single atom level. A trapped 9Be+ ion was laser-cooled to the zero-point energy and then prepared in a superposition of spatially separated coherent harmonic oscillator states. This state was created by application of a sequence of laser pulses, which entangles internal (electronic) and external (motional) states of the ion. The Schrodinger cat superposition was verified by detection of the quantum mechanical interference between the localized wave packets. This mesoscopic system may provide insight into the fuzzy boundary between the classical and quantum worlds by allowing controlled studies of quantum measurement and quantum decoherence.
A procedure is discussed for creating coherent superpositions of motional states of ion strings. The motional states are across the structural transition linear-zigzag, and their coherent superposition is achieved by means of spin-dependent forces, such that a coherent superposition of the electronic states of one ion evolves into an entangled state between the chain's internal and external degrees of freedom. It is shown that the creation of such an entangled state can be revealed by performing Ramsey interferometry with one ion of the chain.