Identical-particle (pion and kaon) femtoscopy in Pb–Pb collisions at $$\sqrt{s_\mathrm{NN}}$$ = 5.02 TeV with Therminator 2 modeled with (3+1)D viscous hydrodynamics

AbstractThe poor stability of CsPbX3 (X = Cl, Br, I) perovskite nanocrystals is the most impediment to its application in the field of photoelectrics. In this work, monodisperse CsPbBr3/TiO2 nanocrystals are successfully prepared by coating titanium precursor on the surface of colloidal CsPbBr3 nanocrystals at room temperature. The CsPbBr3/TiO2 nanocomposites exhibit excellent stability, remaining the identical particle size (9.2 nm), crystal structures and optical properties. Time-resolved photoluminescence decay shows that the lifetime of CsPbBr3/TiO2 nanocrystals is about 4.04 ns and keeps great stability after lasting two months in the air. Results show that the coating of TiO2 on CsPbBr3 NCs greatly suppressed the anion exchange and photodegradation, which are the main reasons for dramatically improving their chemical stability and photostability. The results provide an effective method to solve the stability problem of perovskite nanostructures and are expected to have a promising application in optoelectronic fieldsArticle highlights 1. Prepared the all-inorganic CsPbBr3/TiO2 core/shell perovskite nanocrystals by an easy method. 2. Explored its essences of PL and lifetime of the synthesized CsPbBr3/TiO2 perovskite nanocrystals. 3. CsPbBr3/TiO2 nanocrystals show the great thermal stability after the post-annealing. 4. The CsPbBr3/TiO2 nanocrystals have a high PLQY and have a promising application in solar cells.

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Bidirectional Fractal Test of Dust Particle

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.108-111.954 ◽

2010 ◽

Vol 108-111 ◽

pp. 954-959

Author(s):

Fan Jiang ◽

Wei Ping Chen ◽

Zhong Wei Liang

Keyword(s):

Spherical Particle ◽

Dust Particle ◽

Identical Particle ◽

Fractal Dimensions ◽

Surface Shape ◽

Flat Type ◽

Type Particle

To describe surface shape of the dust particle comprehensively, uses the bidirectional CCD to shoot picture of dust particle, through recognizing the bidirectional particle picture, matching the particle, computing the fractal results of identical particle in two pictures, and integrating two fractal results, obtains the dust particle bidirectional fractal. The results indicated that three fractal dimensions of spherical particle are quite closed, but the three fractal dimensions of flat type particle are significantly different.

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Witnessing pairing correlations in identical-particle systems

Quantum Information and Computation ◽

10.26421/qic21.15-16-4 ◽

2021 ◽

Vol 21 (15&16) ◽

pp. 1307-1319

Author(s):

Cagan Aksak ◽

Sadi Turgut

Keyword(s):

Annihilation Operator ◽

Identical Particle ◽

Quantum Correlations ◽

Particle Systems ◽

Fermionic Systems ◽

Different Types ◽

Pairing Correlations

Quantum correlations and entanglement in identical-particle systems have been a puzzling question which has attracted vast interest and widely different approaches. Witness formalism developed first for entanglement measurement can be adopted to other kind of correlations. An approach is introduced by Kraus \emph{et al.}, [Phys. Rev. A \textbf{79}, 012306 (2009)] based on pairing correlations in fermionic systems and the use of witness formalism to detect pairing. In this contribution, a two-particle-annihilation operator is used for constructing a two-particle observable as a candidate witness for pairing correlations of both fermionic and bosonic systems. The corresponding separability bounds are also obtained. Two different types of separability definition are introduced for bosonic systems and the separability bounds associated with each type are discussed.

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Stability of ()-dimensional causal relativistic viscous hydrodynamics

Nuclear Physics A ◽

10.1016/j.nuclphysa.2010.06.004 ◽

2010 ◽

Vol 846 (1-4) ◽

pp. 95-103

Author(s):

J.W. Li ◽

Y.G. Ma ◽

G.L. Ma

Keyword(s):

Viscous Hydrodynamics

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DRINFELD TWIST FOR QUANTUM su(2) IN THE ADJOINT REPRESENTATION

Modern Physics Letters A ◽

10.1142/s0217732398002369 ◽

1998 ◽

Vol 13 (27) ◽

pp. 2213-2226

Author(s):

CHRYSSOMALIS CHRYSSOMALAKOS

Keyword(s):

Identical Particle ◽

Adjoint Representation ◽

R Matrix ◽

Drinfeld Twist ◽

Twist Element

We give a detailed description of the adjoint representation of Drinfeld's twist element, as well as its coproduct, for su q(2). We also discuss, as applications, the computation of the universal R-matrix in this representation and the problem of symmetrization of identical-particle states with quantum su(2) symmetry.

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