Article
Physics, Multidisciplinary
Hai-Long Shi, Shu Ding, Qing-Kun Wan, Xiao-Hui Wang, Wen-Li Yang
Summary: We investigate the connection between quantum resources and extractable work in quantum batteries. It is demonstrated that quantum coherence in the battery or the battery-charger entanglement is essential for generating nonzero extractable work during the charging process. Additionally, there is a strong link between coherence and entanglement with the final extractable work, where coherence enhances coherent work while coherence and entanglement inhibit incoherent work. Furthermore, it is shown that obtaining maximally coherent work is faster than obtaining maximally incoherent work.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Senaida Hernandez-Santana, Andras Molnar, Christian Gogolin, J. Ignacio Cirac, Antonio Acin
Summary: In quantum systems displaying correlations with no classical analogue, it is unclear if temperature can be understood as an intensive quantity as in standard thermodynamics. However, in certain cases, correlations in thermal states decay fast enough to allow for a valid local definition of temperature for subsystems.
NEW JOURNAL OF PHYSICS
(2021)
Article
Astronomy & Astrophysics
Chatchai Promsiri, Ekapong Hirunsirisawat, Watchara Liewrian
Summary: Recent research using Renyi statistics has shown that asymptotically flat Schwarzschild black hole can achieve thermal equilibrium with an infinite heat reservoir under certain conditions, and a first-order Hawking-Page phase transition as a solid-liquid transition with latent heat of fusion has been identified. Furthermore, investigating the generalized second law of black hole thermodynamics in Renyi statistics by considering black hole as a working substance in a heat engine has revealed interesting results, such as the efficiency of the black hole in a Carnot cycle.
Article
Astronomy & Astrophysics
Nicola Franchini, Miguel Bezares, Enrico Barausse, Luis Lehner
Summary: The formulation of field equations in testing alternative theories of gravity with gravitational-wave data is a major obstacle. The fixing-the-equations approach is a possible solution to control the behavior of solutions and the flow towards ultraviolet modes. In this study, a representative example of scalar-Gauss-Bonnet gravity is used to demonstrate the effectiveness of the fixing-the-equations approach in resolving the dynamical evolutions and connecting with stationary black hole solutions.
Article
Physics, Fluids & Plasmas
Juan P. Garrahan, Felix Ritort
Summary: We introduce a family of generalized continuous Maxwell demons (GCMDs) that operate on idealized single-bit equilibrium devices, combining the single-measurement Szilard and the repeated measurements of the continuous Maxwell demon protocols. We derive cycle distributions for extracted work, information content, and time, and calculate power and information-to-work efficiency fluctuations for different models. We find that the efficiency at maximum power is highest for an opportunistic protocol of continuous type in the dynamical regime dominated by rare events. We also extend the analysis to finite-time work extracting protocols and show that dynamical finite-time correlations in this model increase the information-to-work conversion efficiency, highlighting the role of temporal correlations in optimizing information-to-energy conversion.
Article
Quantum Science & Technology
Sourabh Lahiri, Subhashish Banerjee, A. M. Jayannavar
Summary: Work fluctuation theorems are significant achievements in nonequilibrium Statistical Physics, with recent interest in quantum regimes with generalized measurements. Studies show that in the framework of generalized measurements, the original form of the Jarzynski equality is not exact, but deviations are small and can deduce an approximate effective temperature of the thermal bath. In the limit of projective measurements, the exact form of work fluctuation theorems is recovered.
QUANTUM INFORMATION PROCESSING
(2021)
Article
Physics, Fluids & Plasmas
Stefano Giordano, Fabrizio Cleri, Ralf Blossey
Summary: This paper studies the asymptotic limits of the probability distribution functions of geometric Brownian motion and some related generalizations. We establish the conditions for the existence of normalizable asymptotic distributions depending on the discretization parameter alpha. Using the infinite ergodicity approach, we show how meaningful asymptotic results can be formulated in a transparent way.
Article
Materials Science, Multidisciplinary
Dengke Qu, Xiang Zhan, Haiqing Lin, Peng Xue
Summary: This Letter investigates the charging processes of a state-of-the-art quantum battery made of a harmonic oscillator and proposes a method to improve its stored and extractable energy by introducing a catalyst system. Additionally, a general method to implement a nonunitary channel experimentally is proposed. The research shows the potential of quantum batteries and provides insights for experimental investigations.
Article
Astronomy & Astrophysics
Suvankar Dutta, Taniya Mandal, Sanhita Parihar
Summary: The paper investigates the relativistic origin of the Rivlin-Ericksen fluid and finds it to be a subclass of a generalized nonrelativistic system. The study also reveals that three of the nonrelativistic second-order transports satisfy a universal constraint relation.
Article
Physics, Fluids & Plasmas
Juyong Song, Susanne Still, Rafael Diaz Hernandez Rojas, Isaac Perez Castillo, Matteo Marsili
Summary: Szilard's 1929 Gedankenexperiment proposed a theoretical foundation for computing the maximum average work that can be extracted in a multi-particle partition system, which depends on the mutual information of the particle counts in each partition. Below a critical number of particles, symmetric partitioning is optimal, while above this critical number, asymmetric partitioning is favored.
Article
Mechanics
E. S. Moreira Jr, Heitor da Silva
Summary: This paper investigates the electromagnetic radiation at temperature T in a rectangular slab with perfect conductor walls. The study addresses both the thermodynamic regimes of kTd/hc >> 1 and kTd/hc << 1, and explores the well-defined thermodynamic quantities due to the presence of boundary conditions. It also examines the stability and atypical behaviors of the electromagnetic radiation in the slab.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2023)
Article
Chemistry, Physical
Julia Neumann, Sang Soo Lee, Hannes Brinkmann, Peter J. Eng, Joanne E. Stubbs, Thorsten Stumpf, Moritz Schmidt
Summary: Metal ions' environmental fate is influenced by interactions with natural ligands. Sulfate concentration affects the retention of f-element cations by muscovite, leading to overcompensation initially and then a decrease in coverage due to the dominance of sulfate species in solution. Understanding these interactions is crucial for predicting contaminant transport in the environment.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Mathematics, Applied
Narayan Das, Soumen De, Nantu Sarkar
Summary: The propagation of plane thermoelastic waves in a homogeneous isotropic nonlocal thermoelastic solid is investigated using the Lord-Shulman model of generalized thermoelasticity and the Eringen's model of nonlocal elasticity. It is found that the waves are dispersive and attenuating in nature due to the presence of nonlocality in the medium. Both longitudinal waves and shear-type wave are influenced by the nonlocality, but the shear-type wave is independent of the thermal effect.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2022)
Article
Computer Science, Artificial Intelligence
Qinghai Zheng, Jihua Zhu, Haoyu Tang, Xinyuan Liu, Zhongyu Li, Huimin Lu
Summary: Recently, label distribution learning (LDL) has gained attention in machine learning. Label distributions describe instances with multiple labels of varying intensities, accommodating more general scenes. To solve the problem of unavailable label distributions in real-world applications, two novel label enhancement methods, LESC and gLESC, are proposed. These methods utilize the correlations between samples in the feature and label space to boost label enhancement performance. Extensive experiments on 14 benchmark datasets demonstrate the effectiveness and superiority of the proposed methods.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
(2023)
Article
Astronomy & Astrophysics
Shin'ichi Nojiri, Sergei D. Odintsov, Tanmoy Paul
Summary: In this study, the holographic cut-off in the formalism of generalized holographic dark energy (HDE) is generalized to depend on the particle horizon, future horizon, and scale factor of the universe. It is shown that the Barrow entropic dark energy (DE) model is equivalent to the generalized HDE, where the holographic cut-off is determined by the first-order derivative of the particle horizon or future horizon. The equivalence is extended to consider the variation of the Barrow entropy exponent with the cosmological expansion.
Article
Physics, Multidisciplinary
Zahra Baghali Khanian, Manabendra Nath Bera, Arnau Riera, Maciej Lewenstein, Andreas Winter
Summary: We extend the previous results on quantum thermodynamics to the case of multiple non-commuting charges and develop a resource theory of thermodynamics for asymptotically many non-interacting systems. The phase diagram of the system is formed by associating the vector of expected charge values and entropy with every state. Our key result is the Asymptotic Equivalence Theorem, which connects the equivalence classes of states under asymptotic charge-conserving unitaries with the points on the phase diagram. Using the phase diagram, we analyze the first and second laws of thermodynamics and provide insights into the storage of different charges in physically separate batteries.
ANNALES HENRI POINCARE
(2023)
Review
Materials Science, Multidisciplinary
P. Siva Prasad, Bharat C. G. Marupalli, Siddhartha Das, Karabi Das
Summary: Calcium phosphates, such as hydroxyapatite (HAp), are widely used biomaterials for bone tissue repair. Surfactants have been utilized as templates to control the morphology and size of synthetic HAp particles. This review explores the effects of different chemical and biosurfactants on the structural and biological properties of surfactant-assisted HAp particles.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Bhargav Sai Chava, Ghansham Rajendrasingh Chandel, Siddhartha Das
Summary: In this study, we report the entropy-driven filling of mildly hydrophilic boron nitride nanotubes (BNNTs) with water, which is governed by the unique structure and diameter of the nanotubes. The rotational and translational entropy components play a crucial role in the filling process, with the specific contribution depending on the diameter of the BNNTs and the structure of the water molecules.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Physics, Multidisciplinary
H. Jiang, M. Mandrysz, A. Sanchez, J. Dura, T. Steinle, J. S. Prauzner-Bechcicki, J. Zakrzewski, M. Lewenstein, F. He, J. Biegert, M. F. Ciappina
Summary: This study investigates the non-sequential double ionization (NSDI) in argon induced by a 3100 nm laser source through joint experimental and theoretical approaches. The correlated photoelectron momentum distribution (PMD) is found to strongly depend on the pulse duration, which can be explained by an envelope-induced intensity effect. The laser vector potential at the ionization time of the bound electron is influenced by the pulse duration, leading to different drift momenta. This work highlights the significance of pulse duration in NSDI and enhances our understanding of strong field tunnel-recollision dynamics under mid-IR laser fields.
NEW JOURNAL OF PHYSICS
(2023)
Article
Computer Science, Information Systems
Manideep Mamindlapally, Andreas Winter
Summary: This article discusses the derivation of Singleton bounds on the performance of entanglement-assisted hybrid classical-quantum error correcting codes using quantum Shannon theoretic methods. It shows that the triple-rate region of possible EACQ codes is contained within the quantum Shannon theoretic rate region of a memoryless erasure channel, which is a polytope. The study demonstrates that a large part of this region can be achieved by certain EACQ codes under certain conditions.
IEEE TRANSACTIONS ON INFORMATION THEORY
(2023)
Correction
Optics
Karol Horodecki, Marek Winczewski, Siddhartha Das
Article
Materials Science, Multidisciplinary
Piotr Sierant, Maciej Lewenstein, Antonello Scardicchio, Jakub Zakrzewski
Summary: We use a polynomially filtered exact diagonalization algorithm to study the many-body localization (MBL) transition in disordered Floquet systems. We focus on the disordered kicked Ising model and demonstrate quantitatively that finite-size effects at the MBL transition are less severe than in the random field XXZ spin chains commonly studied in the context of MBL. Our findings also apply to other disordered Floquet models, showing smaller finite-size effects than those observed in typical disordered autonomous spin chains. We observe consistent indications of the MBL transition for several indicators of ergodicity breaking in the kicked Ising model. Additionally, we find that assuming a power-law divergence of the correlation length at the MBL transition yields a critical exponent nu approximately equal to 2, in agreement with the Harris criterion for one-dimensional disordered systems.
Article
Physics, Multidisciplinary
Borja Requena, Gorka Munoz-Gil, Maciej Lewenstein, Vedran Dunjko, Jordi Tura
Summary: This paper proposes a novel approach that combines relaxation techniques with deep reinforcement learning to find the best possible bounds within a limited computational budget. The viability and effectiveness of the method are illustrated through benchmark tests on two paradigmatic problems in quantum physics and quantum information processing. The results show that the proposed approach has good feasibility and performance.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Tomasz Szoldra, Piotr Sierant, Maciej Lewenstein, Jakub Zakrzewski
Summary: In this study, we introduce a correlation function difference (CFD) based on local density correlation functions for a one-dimensional spin system. By comparing correlations on a given site between a full system and its restriction, CFD provides useful information on transfer of information in quantum many-body systems. We investigate the examples of different phases in a disordered XXZ spin chain and find that CFD exhibits different behaviors in the ergodic and many-body localized regimes.
Article
Quantum Science & Technology
Philipp Stammer, Javier Rivera-Dean, Andrew Maxwell, Theocharis Lamprou, Andres Ordonez, Marcelo F. Ciappina, Paraskevas Tzallas, Maciej Lewenstein
Summary: Intense laser-matter interactions are of great interest in research and technology, playing important roles in atomic, molecular, and optical physics, as well as attosecond physics and ultrafast optoelectronics. Recent investigations have shown that these interactions can generate controllable high-photon-number entangled coherent states and coherent state superpositions. This tutorial provides a comprehensive fully quantized description of intense laser-atom interactions, covering processes such as high-harmonic generation and above-threshold ionization. It also discusses new phenomena that cannot be explained by semiclassical theories and explores the potential for quantum state engineering of light.
Article
Optics
Marlena Dziurawiec, Tanausu Hernandez Yanes, Marcin Plodzien, Mariusz Gajda, Maciej Lewenstein, Emilia Witkowska
Summary: Spin-squeezing protocols enable the generation of highly correlated quantum many-body states, which can enhance entanglement-inspired metrology and technologies. We investigate a quantum simulator utilizing twisting dynamics in a two-component Bose-Hubbard model with dipolar interactions. Our results demonstrate that the interplay of contact and long-range dipolar interactions in the superfluid phase activates an anisotropic two-axis countertwisting mechanism, accelerating spin-squeezing dynamics and achieving Heisenberg-limited accuracy in spectroscopic measurements.
Article
Astronomy & Astrophysics
Valentin Kasper, Torsten V. Zache, Fred Jendrzejewski, Maciej Lewenstein, Erez Zohar
Summary: Lattice gauge theories play a fundamental role in various fields such as particle physics, condensed matter, and quantum information theory. While recent advancements in controlling artificial quantum systems have allowed for studying Abelian lattice gauge theories in tabletop experiments, realizing non-Abelian models remains challenging. In this study, we propose a coherent quantum control scheme to enforce non-Abelian gauge invariance in a one-dimensional SU(2) lattice gauge system and discuss the potential extension to other non-Abelian gauge symmetries and higher spatial dimensions. The presented coherent control scheme holds promise for the quantum simulation of non-Abelian lattice gauge theories due to its wide applicability.
Article
Fisheries
Andreas Winter, Alexander Arkhipkin
Summary: Data from surveys conducted in 2013, 2018, 2019, and 2021 were analyzed to investigate changes in skate biomass in waters around the Falkland Islands. The surveys showed a decrease in estimated commercial-size skate biomass for most species and overall. This decline was observed both in areas closed to skate fishing and those open to target fishing, indicating the impact of bycatch in finfish trawls.
Article
Physics, Multidisciplinary
Luca Barbiero, Josep Cabedo, Maciej Lewenstein, Leticia Tarruell, Alessio Celi
Summary: We propose a scheme to realize a frustrated Bose-Hubbard model with ultracold atoms in an optical lattice that comprises the frustrated spin-1/2 quantum XX model. Our scheme utilizes a magnetic flux in a square ladder with one real and one synthetic spin dimension. Although this system does not have geometrical frustration, it can be mapped into an effective triangular ladder with staggered fluxes at low energies for specific values of synthetic tunneling. The scheme allows for minimal instances of frustrated magnets without the need for real geometrical frustration, in a setup of minimal experimental complexity.
PHYSICAL REVIEW RESEARCH
(2023)
