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Roee Ozeri - One of the best experts on this subject based on the ideXlab platform.

  • Emergence of a Measurement Basis in Atom-Photon Scattering
    Science (New York N.Y.), 2013
    Co-Authors: Yinnon Glickman, Nitzan Akerman, Shlomi Kotler, Roee Ozeri
    Abstract:

    After measurement, a wave-function is postulated to collapse on a predetermined set of states—the measurement basis. Using quantum process tomography, we show how a measurement basis emerges in the evolution of the electronic spin of a single trapped atomic ion after spontaneous Photon Scattering and detection. This basis is determined by the excitation laser polarization and the direction along which the Photon was detected. Quantum tomography of the combined spin-Photon state reveals that although Photon Scattering entangles all superpositions of the measurement-basis states with the scattered Photon polarization, the measurement-basis states themselves remain classically correlated with it. Our findings shed light on the process of quantum measurement in atom-Photon interactions.

  • Reversal of Photon-Scattering Errors in Atomic Qubits
    Physical review letters, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    The process of spontaneous Photon Scattering by electronic superpositions in atoms is a prominent example of environment-induced decoherence. Error correction of spontaneous emission errors has been theoretically studied but mostly for qubit states that are separated by an optical frequency difference, and where Photon emission is due to direct decay of the qubit excited state [1,2]. Less attention has been devoted to the more common casewhere the qubit levels are both in the ground-state manifold, separated by the Zeeman or hyperfine interaction, and spontaneous emission errors occur by optical coupling of the qubit states to an excited level. Spontaneous Scattering of Photons by ground-state superpositions in atoms is an important source of error in many experimental systems. Examples include quantum information processing with trapped ions [3‐5] and coherent manipulations of ultracold gases in optical potentials [6]. Spontaneous Photon Scattering entangles most spin superpositions with the scattered Photon polarization [7‐9]. In cases where the Photon is unmeasured, its degrees of freedom are traced out, leading to decoherence of the qubit. In contrast, whenever the Photon is measured, this entanglement can be used as an information resource. Such atom-Photon entanglement was used to demonstrate the violation of Bell’s inequality with an ion-Photon pair [10], the heralded entanglement of two ions that were separated

  • Reversal of Photon Scattering decoherence
    Conference on Lasers and Electro-Optics 2012, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    We study superposition states of a trapped ion spin during Photon Scattering. We observe the emergence of a spin-measurement basis. Using ion-Photon entanglement we are able to reverse the effect of Photon Scattering decoherence.

  • Quantum Correction of Photon-Scattering Errors
    Research in Optical Sciences, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    Using a single trapped ion, we implement a quantum correction protocol for spontaneous Photon-Scattering error. Owing to ion-Photon entanglement, measuring the Photon polarization and emission time allows reversing the Scattering process.

Nitzan Akerman - One of the best experts on this subject based on the ideXlab platform.

  • Emergence of a Measurement Basis in Atom-Photon Scattering
    Science (New York N.Y.), 2013
    Co-Authors: Yinnon Glickman, Nitzan Akerman, Shlomi Kotler, Roee Ozeri
    Abstract:

    After measurement, a wave-function is postulated to collapse on a predetermined set of states—the measurement basis. Using quantum process tomography, we show how a measurement basis emerges in the evolution of the electronic spin of a single trapped atomic ion after spontaneous Photon Scattering and detection. This basis is determined by the excitation laser polarization and the direction along which the Photon was detected. Quantum tomography of the combined spin-Photon state reveals that although Photon Scattering entangles all superpositions of the measurement-basis states with the scattered Photon polarization, the measurement-basis states themselves remain classically correlated with it. Our findings shed light on the process of quantum measurement in atom-Photon interactions.

  • Reversal of Photon-Scattering Errors in Atomic Qubits
    Physical review letters, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    The process of spontaneous Photon Scattering by electronic superpositions in atoms is a prominent example of environment-induced decoherence. Error correction of spontaneous emission errors has been theoretically studied but mostly for qubit states that are separated by an optical frequency difference, and where Photon emission is due to direct decay of the qubit excited state [1,2]. Less attention has been devoted to the more common casewhere the qubit levels are both in the ground-state manifold, separated by the Zeeman or hyperfine interaction, and spontaneous emission errors occur by optical coupling of the qubit states to an excited level. Spontaneous Scattering of Photons by ground-state superpositions in atoms is an important source of error in many experimental systems. Examples include quantum information processing with trapped ions [3‐5] and coherent manipulations of ultracold gases in optical potentials [6]. Spontaneous Photon Scattering entangles most spin superpositions with the scattered Photon polarization [7‐9]. In cases where the Photon is unmeasured, its degrees of freedom are traced out, leading to decoherence of the qubit. In contrast, whenever the Photon is measured, this entanglement can be used as an information resource. Such atom-Photon entanglement was used to demonstrate the violation of Bell’s inequality with an ion-Photon pair [10], the heralded entanglement of two ions that were separated

  • Reversal of Photon Scattering decoherence
    Conference on Lasers and Electro-Optics 2012, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    We study superposition states of a trapped ion spin during Photon Scattering. We observe the emergence of a spin-measurement basis. Using ion-Photon entanglement we are able to reverse the effect of Photon Scattering decoherence.

  • Quantum Correction of Photon-Scattering Errors
    Research in Optical Sciences, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    Using a single trapped ion, we implement a quantum correction protocol for spontaneous Photon-Scattering error. Owing to ion-Photon entanglement, measuring the Photon polarization and emission time allows reversing the Scattering process.

Shlomi Kotler - One of the best experts on this subject based on the ideXlab platform.

  • Emergence of a Measurement Basis in Atom-Photon Scattering
    Science (New York N.Y.), 2013
    Co-Authors: Yinnon Glickman, Nitzan Akerman, Shlomi Kotler, Roee Ozeri
    Abstract:

    After measurement, a wave-function is postulated to collapse on a predetermined set of states—the measurement basis. Using quantum process tomography, we show how a measurement basis emerges in the evolution of the electronic spin of a single trapped atomic ion after spontaneous Photon Scattering and detection. This basis is determined by the excitation laser polarization and the direction along which the Photon was detected. Quantum tomography of the combined spin-Photon state reveals that although Photon Scattering entangles all superpositions of the measurement-basis states with the scattered Photon polarization, the measurement-basis states themselves remain classically correlated with it. Our findings shed light on the process of quantum measurement in atom-Photon interactions.

  • Reversal of Photon-Scattering Errors in Atomic Qubits
    Physical review letters, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    The process of spontaneous Photon Scattering by electronic superpositions in atoms is a prominent example of environment-induced decoherence. Error correction of spontaneous emission errors has been theoretically studied but mostly for qubit states that are separated by an optical frequency difference, and where Photon emission is due to direct decay of the qubit excited state [1,2]. Less attention has been devoted to the more common casewhere the qubit levels are both in the ground-state manifold, separated by the Zeeman or hyperfine interaction, and spontaneous emission errors occur by optical coupling of the qubit states to an excited level. Spontaneous Scattering of Photons by ground-state superpositions in atoms is an important source of error in many experimental systems. Examples include quantum information processing with trapped ions [3‐5] and coherent manipulations of ultracold gases in optical potentials [6]. Spontaneous Photon Scattering entangles most spin superpositions with the scattered Photon polarization [7‐9]. In cases where the Photon is unmeasured, its degrees of freedom are traced out, leading to decoherence of the qubit. In contrast, whenever the Photon is measured, this entanglement can be used as an information resource. Such atom-Photon entanglement was used to demonstrate the violation of Bell’s inequality with an ion-Photon pair [10], the heralded entanglement of two ions that were separated

  • Reversal of Photon Scattering decoherence
    Conference on Lasers and Electro-Optics 2012, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    We study superposition states of a trapped ion spin during Photon Scattering. We observe the emergence of a spin-measurement basis. Using ion-Photon entanglement we are able to reverse the effect of Photon Scattering decoherence.

  • Quantum Correction of Photon-Scattering Errors
    Research in Optical Sciences, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    Using a single trapped ion, we implement a quantum correction protocol for spontaneous Photon-Scattering error. Owing to ion-Photon entanglement, measuring the Photon polarization and emission time allows reversing the Scattering process.

Yinnon Glickman - One of the best experts on this subject based on the ideXlab platform.

  • Emergence of a Measurement Basis in Atom-Photon Scattering
    Science (New York N.Y.), 2013
    Co-Authors: Yinnon Glickman, Nitzan Akerman, Shlomi Kotler, Roee Ozeri
    Abstract:

    After measurement, a wave-function is postulated to collapse on a predetermined set of states—the measurement basis. Using quantum process tomography, we show how a measurement basis emerges in the evolution of the electronic spin of a single trapped atomic ion after spontaneous Photon Scattering and detection. This basis is determined by the excitation laser polarization and the direction along which the Photon was detected. Quantum tomography of the combined spin-Photon state reveals that although Photon Scattering entangles all superpositions of the measurement-basis states with the scattered Photon polarization, the measurement-basis states themselves remain classically correlated with it. Our findings shed light on the process of quantum measurement in atom-Photon interactions.

  • Reversal of Photon-Scattering Errors in Atomic Qubits
    Physical review letters, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    The process of spontaneous Photon Scattering by electronic superpositions in atoms is a prominent example of environment-induced decoherence. Error correction of spontaneous emission errors has been theoretically studied but mostly for qubit states that are separated by an optical frequency difference, and where Photon emission is due to direct decay of the qubit excited state [1,2]. Less attention has been devoted to the more common casewhere the qubit levels are both in the ground-state manifold, separated by the Zeeman or hyperfine interaction, and spontaneous emission errors occur by optical coupling of the qubit states to an excited level. Spontaneous Scattering of Photons by ground-state superpositions in atoms is an important source of error in many experimental systems. Examples include quantum information processing with trapped ions [3‐5] and coherent manipulations of ultracold gases in optical potentials [6]. Spontaneous Photon Scattering entangles most spin superpositions with the scattered Photon polarization [7‐9]. In cases where the Photon is unmeasured, its degrees of freedom are traced out, leading to decoherence of the qubit. In contrast, whenever the Photon is measured, this entanglement can be used as an information resource. Such atom-Photon entanglement was used to demonstrate the violation of Bell’s inequality with an ion-Photon pair [10], the heralded entanglement of two ions that were separated

  • Reversal of Photon Scattering decoherence
    Conference on Lasers and Electro-Optics 2012, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    We study superposition states of a trapped ion spin during Photon Scattering. We observe the emergence of a spin-measurement basis. Using ion-Photon entanglement we are able to reverse the effect of Photon Scattering decoherence.

  • Quantum Correction of Photon-Scattering Errors
    Research in Optical Sciences, 2012
    Co-Authors: Nitzan Akerman, Yinnon Glickman, Shlomi Kotler, Roee Ozeri
    Abstract:

    Using a single trapped ion, we implement a quantum correction protocol for spontaneous Photon-Scattering error. Owing to ion-Photon entanglement, measuring the Photon polarization and emission time allows reversing the Scattering process.

Tzu-chiang Yuan - One of the best experts on this subject based on the ideXlab platform.

  • Unparticle effects in Photon–Photon Scattering
    Physics Letters B, 2008
    Co-Authors: Chun-fu Chang, Kingman Cheung, Tzu-chiang Yuan
    Abstract:

    Elastic Photon-Photon Scattering can only occurvia loop diagram sin the standard m odeland is naturally suppressed. Unparticle can induce tree-levelPhoton-Photon Scattering through the

  • Unparticle effects in Photon–Photon Scattering
    Physics Letters B, 2008
    Co-Authors: Chun-fu Chang, Kingman Cheung, Tzu-chiang Yuan
    Abstract:

    AbstractElastic Photon–Photon Scattering can occur in the Standard Model only via loop diagrams and is naturally suppressed. Unparticle can induce tree-level Photon–Photon Scattering through the operator FμνFμνOU for spin-0 unparticle or FμαFανOUμν for spin-2 unparticle. Due to the peculiar CP-conserving phase exp(−idUπ) associated with the time-like unparticle propagator for non-integral scaling dimension dU, the interference effects of the s-channel amplitude with the t- and u-channels ones on the total cross sections as well as the angular distributions are found to be of some significance. We found that the matrix-element squared is independent of whether we used the transverse form or the conformal form for the spin-2 unparticle propagator. In addition, we show that the cross sections via unparticle exchange can be substantially larger than the Standard Model contribution