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

Physical Review A

General optical state truncation and its teleportation

Mátyás Koniorczyk, Z. Kurucz, A. Gábris, József Janszky

Published Jun 7, 2000• 66 citations
Publisher

Abstract

A setup is proposed in which the number-state expansion of a one-mode traveling-wave optical field is truncated so as to leave its vacuum, one-, and two-photon components. The process is a realization of quantum teleportation on a three-state basis. The possibility of generalization to the first n components is also considered.
DOI
10.1103/physreva.62.013802

Related papers

Optical State Truncation by Projection Synthesis

David Thomas Pegg, Lee S. Phillips, Stephen Mark Barnett

We show how the number-state expansion of an optical state can be truncated so as to leave only its vacuum and one photon components. This can be achieved using a ``quantum scissors'' device, the operation of which relies on a nonlocal quantum effect.

Physical Review Letters•Aug 24, 1998•329 citations

Recurrence formula for generalized optical state truncation by projection synthesis

Celso J. Villas-Bôas, Y. Guimarães, M. H. Y. Moussa +1 more

A recent work [Pegg et al., Phys. Rev. Lett. 81, 1604 (1998)] showed how to generate a running-wave superposition of zero- and one-photon field states, ${C}_{0}|0〉{+C}_{1}|1〉,$ by physical truncation of the photon number superposition making up a coherent state. Here we discuss the extension of this device to the case of N components: ${C}_{0}|0〉{+C}_{1}|1〉+\ensuremath{\cdot}\ensuremath{\cdot}\ensuremath{\cdot}{+C}_{N}|N〉.$

Physical Review A•Apr 18, 2001•51 citations

Quantum scissors: Teleportation of single-mode optical states by means of a nonlocal single photon

С. А. Бабичев, Jonas Ries, Alexander I. Lvovsky

We employ the quantum state of a single photon entangled with the vacuum (| GROUP ⟩ A | GROUP ⟩ B − | GROUP ⟩ A | GROUP ⟩ B ), generated by a photon incident upon a symmetric beam splitter, to teleport single-mode quantum states of light by means of the Bennett protocol. The teleportation of coherent states results in the truncation of their Fock expansion to the first two terms. We analyze the teleported ensembles by means of homodyne tomography and obtain fidelities of up to 99 per cent for low-source state amplitudes. This work is an experimental realization of the quantum scissors device proposed by Pegg, Phillips and Barnett ( Phys. Rev. Lett. , 81 (1998) 1604).

arXiv:quant-ph/0208066•Europhysics Letters (EPL)•Oct 1, 2003•463 citations

Selective truncations of an optical state using projection synthesis

Adam Miranowicz, Şahin Kaya Özdemir, J. Bajer +2 more

Selective truncation of the Fock-state expansion of an optical field can be achieved using projection synthesis. The process removes the predetermined Fock states from the input field by conditional measurement and teleportation. We present a scheme to perform projection synthesis based on multiport interferometry. This scheme can be used both as a generalized quantum scissors device that filters out Fock states with photon numbers higher than a predetermined value, and as a quantum punching device that selectively removes specific Fock states, making holes in the Fock-state expansion of the input field.

arXiv:quant-ph/0605146•Journal of the Optical Society of America B•Jan 26, 2007•20 citations

Conditional teleportation using optical squeezers and photon counting

Jens Clausen, Tomáš Opatrný, Dirk‐Gunnar Welsch

We suggest a scheme of conditional teleportation of quantum states of optical fields using squeezers and photon counting. Alice feeds the mode whose state is desired to be teleported and one mode of a two-mode squeezed vacuum into a parametric amplifier, and detects output photon numbers. The result is then communicated to Bob, who shifts the photon number of his part accordingly. We show that for some classes of states the method can yield, with reasonable success probability, a teleportation fidelity close to unity. The method represents a modification of a recently proposed scheme [G. J. Milburn and S. L. Braunstein, Phys. Rev. A 60, 937 (1999)], where measurements of the photon-number difference and the phase sum are considered. The present scheme brings the method closer to the current experimental techniques.

arXiv:quant-ph/0003142•Physical Review A•Sep 13, 2000•8 citations

Teleported State and its Fidelity in Quantum Teleportation of Continuous Variables

Li Fu-Li, Hongrong Li, Zhang Jun-Xiang +1 more

When given an unknown quantum state which may be either a pure or a mixed state in the coherent state representation, we show that explicit expressions for the teleported state and its fidelity in the teleportation process (S. L. Braunstein and H. J. Kimble 1998 Phys. Rev. Lett. 80 869) can be obtained without explicit expansions for the two-mode squeezed vacuum state and the Bell basis in a specified representation.

Chinese Physics Letters•Dec 9, 2002•6 citations
A recent work [Pegg et al., Phys. Rev. Lett. 81, 1604 (1998)] showed how to generate a running-wave superposition of zero- and one-photon field states, C0∣0〉+C1∣1〉,{C}_{0}|0〉{+C}_{1}|1〉,C0​∣0〉+C1​∣1〉, by physical truncation of the photon number superposition making up a coherent state. Here we discuss the extension of this device to the case of N components: ${C}_{0}|0〉{+C}_{1}|1〉+\ensuremath{\cdot}\ensuremath{\cdot}\ensuremath{\cdot}{+C}_{N}|N〉.$
We employ the quantum state of a single photon entangled with the vacuum (| GROUP ⟩ A | GROUP ⟩ B − | GROUP ⟩ A | GROUP ⟩ B ), generated by a photon incident upon a symmetric beam splitter, to teleport single-mode quantum states of light by means of the Bennett protocol. The teleportation of coherent states results in the truncation of their Fock expansion to the first two terms. We analyze the teleported ensembles by means of homodyne tomography and obtain fidelities of up to 99 per cent for low-source state amplitudes. This work is an experimental realization of the quantum scissors device proposed by Pegg, Phillips and Barnett ( Phys. Rev. Lett. , 81 (1998) 1604).
Selective truncation of the Fock-state expansion of an optical field can be achieved using projection synthesis. The process removes the predetermined Fock states from the input field by conditional measurement and teleportation. We present a scheme to perform projection synthesis based on multiport interferometry. This scheme can be used both as a generalized quantum scissors device that filters out Fock states with photon numbers higher than a predetermined value, and as a quantum punching device that selectively removes specific Fock states, making holes in the Fock-state expansion of the input field.
We suggest a scheme of conditional teleportation of quantum states of optical fields using squeezers and photon counting. Alice feeds the mode whose state is desired to be teleported and one mode of a two-mode squeezed vacuum into a parametric amplifier, and detects output photon numbers. The result is then communicated to Bob, who shifts the photon number of his part accordingly. We show that for some classes of states the method can yield, with reasonable success probability, a teleportation fidelity close to unity. The method represents a modification of a recently proposed scheme [G. J. Milburn and S. L. Braunstein, Phys. Rev. A 60, 937 (1999)], where measurements of the photon-number difference and the phase sum are considered. The present scheme brings the method closer to the current experimental techniques.