Temperature-dependent gyration tensor of LiIO<sub>3</sub>single crystal using the high-accuracy universal polarimeter

Herreros-Cedrés, J.; Hernández-Rodríguez, C.; Guerrero‐Lemus, Ricardo

doi:10.1107/s0021889802000778

Cited by 11 publications

(8 citation statements)

References 14 publications

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“…As we have seen, determination of the systematic error plays an important role in HAUP experiments, which was confirmed by other authors (Kremers & Meekes, 1995;Folcia et al, 1999;Herná ndez-Rodríguez et al, 2000;Herreros-Cedré s et al, 2002). It was repeatedly noted that such a parameter as the parasitic ellipticity of the polarizers (p and a) is essentially an indicator of the sample quality rather than the quality of the polarization prism itself.…”

Section: Figuresupporting

confidence: 79%

Polarimetric studies of L-arginine-doped potassium dihydrogen phosphate single crystals

Shopa

Shribak

et al. 2020

J Appl Cryst

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Conoscopic interference patterns, channelled spectra and polarimetric techniques have been used for the characterization of pure and doped (with L-arginine amino acid) potassium dihydrogen phosphate (KDP) single crystals. Experimental polarimetric data have been obtained for the frequently used wavelength of 633 nm and for two close wavelengths of 532 and 543 nm in a high-accuracy dual-wavelength polarimeter. The measurement of eigenwave ellipticity in the [100] and [010] directions and between 295 and 340 K shows small differences in the absolute values of the specific optical rotations of KDP crystals doped with L-arginine in the range of 0.7–3.8 wt%. It is found that the gyration tensor component g 11, specific optical rotation and eigenwave ellipticity show different dispersion in the visible spectral region.

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Section: Figuresupporting

confidence: 79%

Polarimetric studies of L-arginine-doped potassium dihydrogen phosphate single crystals

Shopa

Shribak

et al. 2020

J Appl Cryst

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“…As improbable as this scenario might appear, it is not totally unreasonable or inconsistent and should be experimentally testable (e.g. see [12] for a theory and [13,14] for experimental determinations of birefringence in high-temperature ranges).…”

Section: Quantum Randomness Through Context Translationmentioning

confidence: 98%

Quantum information via state partitions and the context translation principle

Svozil

2004

Journal of Modern Optics

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For many-particle systems, quantum information in base n can be defined by partitioning the set of states according to the outcomes of n-ary ( joint) observables. Thereby, k particles can carry k nits. With regards to the randomness of single outcomes, a context translation principle is proposed. Quantum randomness is related to the uncontrollable degrees of freedom of the measurement interface, thereby translating a mismatch between the state prepared and the state measured. Information in many-particle quantum systemsThe preparation of a single particle n-state quantum system in a single state constitutes the operationalization of a nit, or qunit. Likewise, the occurrence of an outcome of an observable with n possible outcomes can be associated with accessing a nit of information. For a single particle observable, this is associated with choosing a vector from an orthogonal basis of n-dimensional Hilbert space. In the many-particle case, nits may not only be localized at single particle observables, since due to entanglement, the nits may be distributed over the particles by representing joint particle properties.In what follows we shall review and extend formal generalizations [1, 2] of the single particle two-state case to an arbitrary finite number of particles with an arbitrary finite number of different measurement outcomes per particle. Thereby, we define a nit as a radix n measure of quantum information which is based on state partitions associated with the outcomes of n-ary observables. We shall demonstrate the following property: k particles specify k nits in such a way that k measurements of comeasurable observables with n possible outcomes are necessary to determine the information. Stated pointedly, k particles can carry k nits.Conceptually, such properties have been previously proposed by Zeilinger [3] as a foundational principle for quantum mechanics. Zeilinger merely considered two-state systems of two and three particles, yet an informal hint for higherdimensional single quantum systems is in footnote 6 of [3] on p. 635. There is a slight difference in the approach of Zeilinger and the author: whereas here the logico-algebraic properties are studied 'top-down' by assuming Hilbert space quantum mechanics and arriving at the foundational principle purely deductively, Brukner and Zeilinger [4] reconstruct certain features of quantum physics by treating this principle 'bottom-up' as an axiom.

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“…In the thickness regime of 100 microns or more, the multiple internal reflections inside the slab give rise to several superimposed outgoing waves . For very thick crystals measured at oblique incidence, the multiply reflected waves can be spatially resolved and separately measured, but as the HAUP method relies on transmission measurements at normal incidence, the contribution of multiple reflections is unavoidable, and has lead to artifactual oscillations in recovered values of α as a function of temperature . Moreover, relying on normal incidence requires that crystals be cut in multiple directions, the number of requisite directions being equal to the number of unique components in α .…”

Section: Propagation Of Light In An Optically Active Crystalmentioning

confidence: 99%

Gyration and Permittivity of Ethylenediammonium Sulfate Crystals

et al. 2016

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Ethylenediammonium sulfate (EDS) crystals were grown from aqueous solution and cleaved into thin (100-500 micron) plates. The 422 point group of EDS was confirmed by X-ray diffraction. The constitutive relations of EDS crystals were determined through generalized ellipsometry with an instrument that uses four photoelastic modulators (4PEM). The optical rotation at 500 nm, for example, was + 22.9°/mm along the optic axis and - 12.1°/mm perpendicular to the optic axis for the P41 21 2 crystals. Enantiomorphous twins frequently form across the (001) plane. Mirrored halves must be separated by cleavage in advance of optical measurements. Chirality 28:460-465, 2016. © 2016 Wiley Periodicals, Inc.

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Temperature-dependent gyration tensor of LiIO₃single crystal using the high-accuracy universal polarimeter

Cited by 11 publications

References 14 publications

Polarimetric studies of L-arginine-doped potassium dihydrogen phosphate single crystals

Polarimetric studies of L-arginine-doped potassium dihydrogen phosphate single crystals

Quantum information via state partitions and the context translation principle

Gyration and Permittivity of Ethylenediammonium Sulfate Crystals

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Temperature-dependent gyration tensor of LiIO3single crystal using the high-accuracy universal polarimeter

Cited by 11 publications

References 14 publications

Polarimetric studies of L-arginine-doped potassium dihydrogen phosphate single crystals

Polarimetric studies of L-arginine-doped potassium dihydrogen phosphate single crystals

Quantum information via state partitions and the context translation principle

Gyration and Permittivity of Ethylenediammonium Sulfate Crystals

Contact Info

Product

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Temperature-dependent gyration tensor of LiIO₃single crystal using the high-accuracy universal polarimeter