Article
Quantum Science & Technology
R. Muthuganesan, V. K. Chandrasekar
Summary: In this paper, the resource theory of asymmetry is established using quantum Fisher information, with the average Fisher information defined as a measure of asymmetry. The discrepancy of bipartite global and local asymmetries is shown to naturally induce nonclassical correlation between subsystems. This measure satisfies all the necessary axioms of a faithful measure of bipartite quantum correlation and has been studied for various types of quantum states.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Mathematics
Dmitry Makarov
Summary: Currently, there is no non-perturbative theory that fully describes the scattering of nonclassical electromagnetic waves by free electrons using quantum physics. This paper presents a theory that considers the statistical nature and the number of scattered photons. The theory is analytically solvable for any number of electrons and shows significant differences from the previously known Thomson scattering theory in the non-perturbative case and at relatively small numbers of incident photons. Moreover, it is also applicable to the scattering of ultrashort pulses by free electrons.
Article
Physics, Multidisciplinary
Maria Maffei, Patrice A. Camati, Alexia Auffeves
Summary: The study presents an operational scenario characterizing energy exchanges between two coupled but isolated quantum systems. By defining work components and exploring the impact of local operations on energy extraction, a bound is established to examine the relationship between work exchange and local energy extraction. This study provides operational energy-based witnesses for investigating nonclassical resources.
PHYSICAL REVIEW RESEARCH
(2021)
Article
Optics
Subhankar Bera, Ananda G. Maity, Shiladitya Mal, A. S. Majumdar
Summary: In this paper, we explore the fundamental origin of the quantum advantage behind random access code. We propose new temporal inequalities compatible with noninvasive-realist models and demonstrate that any nonzero quantum advantage of n→1 random access code in the presence of shared randomness is equivalent to the violation of the corresponding temporal inequality. Furthermore, we prove that the maximal success probability of n→1 random access code can be achieved when the maximal violation of the corresponding inequality is attained. We also show that any nonzero quantum advantage of n→1 random access code, or in other words, any nonzero violation of the corresponding temporal inequality, can certify genuine randomness.
Article
Optics
Tuhina Sinha, Mohosin Alam, Arjun Mukhopadhyay, Swapan Mandal, S. S. Hassan
Summary: This paper investigates the nonclassical properties of electromagnetic radiation propagating through a non-degenerate parametric amplifier (NDPA), including squeezing, intermodal entanglement, and antibunching. Using a complete quantum mechanical description and analytical solutions of the Heisenberg's equations of motion, the existence of these nonclassical properties is confirmed for various input states. The analytical results are compared with numerical results to validate their correctness.
Article
Physics, Multidisciplinary
Mohammad Ehsan Farzan, Mohammad Javad Faghihi, Gholamreza Honarasa
Summary: The paper introduces f-deformed photon-added squeezed Kerr states by applying the f-deformed creation operator to the squeezed Kerr states, showing that various types of nonclassical states can be generated by adjusting controlling parameters. The numerical study of nonclassical properties including photon statistics, squeezing, and Husimi Q distribution function reveals that adding photons enhances the nonclassical behavior of the states, with the operator-valued intensity-dependent function playing a crucial role in unveiling the nonclassical aspects of the system.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Optics
E. P. Mattos, A. Vidiella-Barranco
Summary: In this Letter, a simple and versatile scheme for enhancing nonclassical properties of light states using linear optics and photodetectors is presented. By combining a coherent state and an arbitrary pure state of light at two beam splitters, the amplitude of the coherent state can be tuned to filter out specific Fock components and generate states of light with increased nonclassical features. Two examples of input states are provided, demonstrating the effectiveness of the scheme in enhancing sub-Poissonian statistics or quadrature squeezing of the output states.
Article
Physics, Multidisciplinary
R. Muthuganesan
Summary: This article introduces a new variant of measurement-induced nonlocality measures using Tsallis alpha-relative entropy. The proposed measure satisfies the axioms of a faithful measure of quantum correlation and resolves some issues of previous methods. Analytically, the measure is evaluated for both pure and mixed states, and its relations with other measures in the literature are established. The article also extends the method to characterize nonbilocal correlation in a bilocal scenario and identifies a closer connection between nonlocal and nonbilocal correlation measures.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Luis E. Fuentes-Cobas, Maria E. Montero-Cabrera, Jasper Plaisier, Edgar E. Villalobos-Portillo, Lorena Pardo
Summary: This study investigates the crystal structure changes of BNBT4 piezoceramics synthesized through different routes using high-resolution X-ray diffraction. It is found that the ceramic obtained from sol-gel method has a rhombohedral structure, while the one obtained from mixed oxides method has a monoclinic structure. Poling process can produce texture in the sol-gel ceramic, and poling the mixed oxides ceramic can quickly transform the structure from monoclinic to rhombohedral, with further development of texture and anisotropic micro-strains. The anisotropy of critical temperatures for dielectric and electromechanical depolarization is lower in the mixed oxides ceramics compared to the sol-gel ceramics.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Computer Science, Interdisciplinary Applications
W. Pula, D. V. Griffiths
Summary: This paper explores the theoretical relationship between spatial correlation lengths in lognormal and hyperbolic tangent random fields, derived from underlying Gaussian random fields. Derivations for normal/log-normal and normal/tanh transformations are presented, along with extrapolations to two- and three-dimensional models emphasizing vertical and horizontal correlation lengths. The paper concludes with an example probabilistic bearing capacity analysis using the RFEM method, noting slightly unconservative untransformed solutions with generally modest differences.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Astronomy & Astrophysics
Malthe Andersen, Frederik Norfjand, Nikolaj Thomas Zinner
Summary: This paper investigates the time evolution of periodically driven systems and derives formulas for the exact time propagation of heating and nonheating classes of Floquet-driven CFTs. The study requires a subtle treatment of nonstroboscopic time and reveals different interpretations in terms of curved space-time dynamics compared to previous literature results.
Article
Optics
Thais L. Silva, Wesley B. Cardoso, Ardiley T. Avelar, Jorge M. C. Malbouisson
Summary: In this study, we investigate the propagation of light beams through disordered lattices of coupled waveguides to explore Anderson localization and the evolution of nonclassical properties of injected quantum states. Numerical analysis shows that high levels of disorder tend to preserve the quantum properties of certain input states.
Article
Engineering, Mechanical
Yangyang Li, Jiaqiang Li, Qiyuan Duan, Huimin Xie, Sheng Liu
Summary: This paper proposes a strain correlation method (SCM) to improve the identification ability of virtual fields method (VFM) when the global properties are unknown. The feasibility and accuracy of SCM are verified through experiments, showing good noise immunity and lower accuracy requirements for strain fields.
ACTA MECHANICA SINICA
(2021)
Article
Physics, Multidisciplinary
S. -a. Biehs, G. S. Agarwal
Summary: The possibility of nonreciprocity in heat transfer between two bodies has been extensively studied, especially the role of strong magnetic fields. A simpler approach would be to consider heat transfer in synthetic electric and magnetic fields. This study demonstrates the breakdown of detailed balance for the heat transfer function and the nonreciprocity induced by synthetic fields in graphene flakes and Casimir coupling between two objects. Synthetic fields also affect the mean occupation numbers of two membranes, which can be experimentally verified.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Gang Ren, Hai-jun Yu, Chun-zao Zhang, Feng Chen
Summary: We introduce a two-mode hybrid entangled state (NAAN) consisting of two n-photon Fock states and two coherent states with an arbitrary relative phase. The NAAN can be considered as the superposition of NOON states when a ? 0. In the special case where a = 0, the NAAN degenerates to the general NOON. The most interesting nonclassical properties of this state are its strong violations of the CHSH inequality. Additionally, the NAAN state exhibits entanglement, sub-Poissonian distribution, phase fluctuation, and squeezing.
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2023)
