Results 81 to 90 of about 29,458 (256)

Pulsed energy-time entangled twin-photon source for quantum communication

, 1998
A pulsed source of energy-time entangled photon pairs pumped by a standard laser diode is proposed and demonstrated. The basic states can be distinguished by their time of arrival. This greatly simplifies the realization of 2-photon quantum cryptography,
A. K. Ekert, A. Zeilinger, C. H. Bennett, C. Marand, Ch. Bennett, D. Boschi, D. Bouwmeester, D. M. Greenberger, G. Ribordy, H. Weinfurter, H. Zbinden, H. Zbinden, J. Brendel, J. Brendel, J. Brendel, J. D. Franson, J. W. Pan, K. Mattle, M. Żukowski, M. Żukowski, N. Gisin, P. G. Kwiat, P. G. Kwiat, P. G. Kwiat, P. R. Tapster, R. Hughes, W. Tittel, W. Tittel, W. Tittel   +28 more
core   +1 more source

The influence of imprecise quantum measurement on quantum dense coding

Journal of Physics: Conference Series, 2020
Abstract In this paper, the influence of imprecise quantum measurement on quantum dense coding would be analysed. The realization processes of dense coding under the condition of imprecise measurement are given in detail. The performance of dense coding is analysed from the successful probability and average classical information.
Zhiqiang Ma, Bingbing Luo, Chaowei Huang, Tianxiong Wu, Jiahua Wei, Haiyan Zhao, Wei Xing   +6 more
openaire   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

Metachromatic Butterfly Bile Pigments for Multi‐Level Optical Security Films

Advanced Functional Materials, EarlyView.
Bio‐derived optical security materials are manufactured by embedding butterfly‐based pigments in polymer films. Tunable color and fluorescence responses arise from concentration‐controlled metachromasy, enabling spatially encoded patterns with distinct visible, UV‐active, and spectral signatures.
Limin Wang, Bodo D. Wilts
wiley   +1 more source

Sensitized Triplet Exciton Generation in Nanostructured Polymer Scintillators: Toward Improved γ/Neutron Discrimination

Advanced Functional Materials, EarlyView.
Rapid γ/neutron discrimination through PSD is achieved in liquid droplet containing nanostructured polymeric scintillator where a TTA‐active dye is dissolved. The inclusion of a properly selected and dosed sensitizer metalated porphyrin enhances discrimination sensitivity and speed by doubling the density of annihilating triplets and increasing the ...
Luca Pollice, Xueqian Hu, Letizia G. Tedoldi, Andrea Erroi, Davide Rigamonti, Marco Tardocchi, Davide Bortot, Andrea Pola, Christoph Weder, Angelo Monguzzi   +9 more
wiley   +1 more source

Optimal super dense coding over memory channels

, 2011
We study the super dense coding capacity in the presence of quantum channels with correlated noise. We investigate both the cases of unitary and non-unitary encoding. Pauli channels for arbitrary dimensions are treated explicitly.
Bruß, Dagmar, Kampermann, Hermann, Macchiavello, Chiara, Shadman, Zahra   +3 more
core   +1 more source

Observation of Two‐Photon Resonant Raman Scattering via the Biexciton Level in Two‐Dimensional Halide Perovskite (C6H5C2H4NH3)2PbI4

Advanced Functional Materials, EarlyView.
Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin, Seo Hyun Nam, Jeehong Park, Dong Gyu Lee, Jeong Bin Cho, Tae Jung Kim, Yeonjin Yi, Joon Ik Jang   +7 more
wiley   +1 more source

A family of quantum protocols

, 2004
We introduce two dual, purely quantum protocols: for entanglement distillation assisted by quantum communication (``mother'' protocol) and for entanglement assisted quantum communication (``father'' protocol).
Devetak, I., Harrow, A. W., Winter, A.
core   +1 more source

Hybrid Three-Mode Correlation and Squeezing in a Pr3+:YSO Crystal

Scientific Reports, 2017
We report the generation of three-mode hybrid intensity-noise correlation and intensity-difference squeezing of spontaneous parametric four-wave mixing (SP-FWM) and fourth-order fluorescence (FL) signals in the heteronuclear-like (three-level Λ-type ...
Zongchen Liu, Irfan Ahmed, Garuma Abdisa, Zihai Jiang, Shuwei Fan, Hongxing Wang, Yanpeng Zhang   +6 more
doaj   +1 more source

Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries

Advanced Functional Materials, EarlyView.
Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo, Matthias Golomb, Yupei Han, Pan He, Neubi Xavier, Wanjun Ren, Yi Lu, Matthew Hopper, Henry R. Tinker, Qiong Cai, Yang Xu   +10 more
wiley   +1 more source