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Entanglement, holography and causal diamonds [PDF]

Journal of High Energy Physics, 2016
We argue that the degrees of freedom in a d-dimensional CFT can be re-organized in an insightful way by studying observables on the moduli space of causal diamonds (or equivalently, the space of pairs of timelike separated points).
Jan de Boer, Michal P Heller, Robert C Myers   +2 more
exaly   +4 more sources

Prospecting models of primary diamond deposits of the north of the East European Platform

Записки Горного института, 2022
As a result of a comprehensive study of the geological structure and diamond presense of the northern part of the East European Platform, generalization of the data accumulated by various organizations in the USSR, the Russian Federation, and other ...
Victor N. Ustinov, Igor I. Mikoev, Gennady F. Piven   +2 more
doaj   +1 more source

Geodynamic and Isotopic Constraints on the Genesis of Kimberlites, Lamproites and Related Magmas From the Finnish Segment of the Karelian Craton

Geochemistry, Geophysics, Geosystems, 2022
Despite the scientific and economic significance of kimberlites and related magmas, their origin is unclear. Here, we address this issue using whole‐rock and perovskite‐derived Sr‐Nd‐Hf isotopes for the three occurrences of kimberlite, lamproites and ...
Hayden Dalton, Andrea Giuliani, Janet Hergt, David Phillips, Hugh O’Brien, Maxim D. Ballmer, Roland Maas, Jon Woodhead   +7 more
doaj   +1 more source

Analysis of Abnormal Birefringence and Graphite Inclusions in Zimbabwean Diamonds

Yankuang ceshi, 2022
BACKGROUND The Marange diamond deposit in Zimbabwe is characterized by producing mixed-habit (octahedral and cuboid) diamonds. Graphite inclusions in these diamonds only exist in cuboid sectors.
SUN Chengyang, LU Taijin, SONG Zhonghua, HE Mingyue, DENG Yi   +4 more
doaj   +1 more source

Oceanic and super-deep continental diamonds share a transition zone origin and mantle plume transportation

Scientific Reports, 2021
Rare oceanic diamonds are believed to have a mantle transition zone origin like super-deep continental diamonds. However, oceanic diamonds have a homogeneous and organic-like light carbon isotope signature (δ13C − 28 to − 20‰) instead of the extremely ...
Luc S. Doucet, Zheng-Xiang Li, Hamed Gamal El Dien   +2 more
doaj   +1 more source

Spectroscopic Study of the 3107 cm⁻¹ and 3143 cm⁻¹ H-Related Defects in Type Ib Diamonds

Crystals, 2022
Hydrogen-related infrared absorption bands in natural diamonds have been extensively investigated and widely used to identify natural, treated, and synthetic diamonds grown by high pressure and high temperature (HPHT) and chemical vapor deposition (CVD ...
Zhonghua Song, Jun Su, Wenfang Zhu, Taijin Lu, Yang Wang, Shengmei He   +5 more
doaj   +1 more source

Measurement of foliar H2O2 concentration can be an indicator of riparian vegetation management

Scientific Reports, 2022
Riparian vegetation is frequently exposed to abiotic stress, which generates reactive oxygen species (ROS) caused by strong differences in a river’s hydrological conditions.
Takashi Asaeda, Mizanur Rahman, Lekkala Vamsi-Krishna, Jonas Schoelynck, Md Harun Rashid   +4 more
doaj   +1 more source

Spectral Characteristics and Electrical-Magnetic Properties of Gem-quality Synthetic Diamonds under High Temperature and Pressure

Yankuang ceshi, 2021
BACKGROUND In order to quickly identify and screen high pressure and high temperature (HPHT) grown synthetic diamonds, a lot of research about their luminescent and spectral characteristics has been done. However, the comparative analysis is lacking, and
YANG Chi-yu, LU Tai-jin, ZHANG Jian, SONG Zhong-hua, CHEN Hua, KE Jie, HE Ming-yue   +6 more
doaj   +1 more source

The contribution of the TSNIGRI Diamond laboratory to the scientific treasury of Yakutia

Руды и металлы, 2022
Brief information is given on the main stages of scientific activity or the half-century history of the Research Geological Enterprise (NIGP) of PJSC ALROSA, confirming their inheritance from the initial stages of the enterprise (Diamond Laboratory ...
Alexander V. Тolstov, Nikolay N. Zinchuk   +1 more
doaj   +1 more source

Diamonds are Forever [PDF]

, 2020
We defend the thesis that every necessarily true proposition is always true. Since not every proposition that is always true is necessarily true, our thesis is at odds with theories of modality and time, such as those of Kit Fine and David Kaplan, which
Dorr Cian, Fine Kit, Kaplan David, Kaufmann Stefan, Montague Richard, Prior A. N., Salmon Nathan U., Zalta Edward N.   +7 more
core   +1 more source