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Acta Physica Hungarica Series B: Quantum Electronics

Subject Areas:
Publisher: Springer-Verlag - Springer Journals
ISSN: 1589-9535

LitStream

Journal Article

Operational measure of entanglement for pure states of bipartite systems

Klyachko, Alexander; Öztop, Bariş; Shumovsky, Alexander

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.11

We show that the complete information about the amount of entanglement carried by a bipartite pure state of any dimension (qubits, qutrits, etc), is determined by a local quantity that can be measured for either party of the system. This quantity is expressed in terms of averages of certain basic...
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Journal Article

Remote state preparation in quadrature basis

Kurucz, Z.; Adam, P.; Janszky, J.

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.12

We present a theoretical scheme for non-teleportation-based exact deterministic remote state preparation (RSP) in continuous variable (CV) quantum systems. It is an infinite dimensional generalization of RSP of equatorial states. It is capable of preparing states of an ensemble that is...
LitStream

Journal Article

Characterization of thin-foil preformed plasmas for high-intensity laser plasma interactions

Sagisaka, Akito; Daido, Hiroyuki; Pirozhkov, Alexander; Ogura, Koichi; Orimo, Satoshi; Mori, Michiaki; Nishiuchi, Mamiko; Yogo, Akifumi; Kado, Masataka; Nakamura, Shu; Iwashita, Yoshihisa; Shirai, Toshiyuki; Noda, Akira; Nagatomo, Hideo

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.13

We observe the electron density distribution of preformed plasmas of a titanium foil target with the 400 nm probe beam as an interferometer. The preformed plasma at the front side of the target is generated by a prepulse with a high-intensity Ti:sapphire laser. On the other hand, the preformed...
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Journal Article

Optimization of high harmonic generation by genetic algorithm

Valentin, Constance; Boyko, Olga; Papalazarou, Evaggelos; Rey, Gilles; Mercier, Brigitte; Antonucci, Laura; Balcou, Philippe

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.14

In order to develop an intense Extreme Ultra-Violet source based on High Harmonics Generation (HHG) for many applications, we have performed HHG signal optimization experiments. It has been shown that HHG is very sensitive to temporal fundamental pulse shape. For these experiments, we have used...
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Journal Article

First interferometric measurement of the atomic dipole phase in high-order harmonic generation

Pirri, Angela; Corsi, Chiara; Sali, Emiliano; Tortora, Alessandra; Bellini, Marco

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.15

We report the interferometric measurement of the atomic dipole phase of high-order harmonics generated in noble gases. The contributions of both the main electronic quantum paths predicted by a simple semi-classical model are investigated for the first time in a direct and complete way.
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Journal Article

Photoionization of helium atoms through a superposition of higher harmonics

Barna, Imre

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.16

We present a coupled-channel calculation of two-photon single ionization of helium by a superposition of the 7th to the 13th harmonic of a Ti:sapphire laser. Solving the time-dependent two-electron Schrödinger equation with a coherent polychromatic field, the single-ionization probabilities are...
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Journal Article

Observing the Birth of attosecond pulses

Dudovich, N.; Smirnova, O.; Levesque, J.; Mairesse, Y.; Ivanov, M.; Corkum, P.; Villeneuve, D.

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.17

Attosecond pulse trains are produced during the production of high harmonics when a gas sample is irradiated with an intense femtosecond laser pulse. Usually the attosecond pulses are characterized in a second gas source. We show that attosecond pulses can be measured directly as they are...
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Journal Article

A study on black-body radiation: Classical and binary photons

Varró, Sándor

2009 Acta Physica Hungarica Series B, Quantum Electronics

doi:10.1556/APH.26.2006.3-4.18

The present study gives a detailed analysis of the thermal radiation based completely on classical random variables. It is shown that the energy of a mode of a classical chaotic radiation field, following the continuous exponential distribution as a classical random variable (Gauss variable), can...

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