A5013951910- Quantum Information and Cryptography
- Quantum Mechanics and Applications
- Quantum Computing Algorithms and Architecture
- Advanced Thermodynamics and Statistical Mechanics
- Spectroscopy and Quantum Chemical Studies
- Quantum Mechanics and Non-Hermitian Physics
- Statistical Mechanics and Entropy
- Matrix Theory and Algorithms
- Plant Stress Responses and Tolerance
- Mathematical Analysis and Transform Methods
- Quantum optics and atomic interactions
- Photosynthetic Processes and Mechanisms
- Plant Gene Expression Analysis
- Complex Systems and Time Series Analysis
- Nutrition and Health in Aging
- Neonatal Health and Biochemistry
- Video Coding and Compression Technologies
- Multimedia Communication and Technology
- Quantum many-body systems
- Liver Disease Diagnosis and Treatment
- Mechanical and Optical Resonators
- Chronic Kidney Disease and Diabetes
- Algebraic and Geometric Analysis
- Protein Structure and Dynamics
- Image and Video Quality Assessment
Northwest A&F University
2014-2024
Samsung (United States)
2015
Seoul National University
2014
Seoul National University Bundang Hospital
2014
Sichuan University
2011-2012
Beijing Computational Science Research Center
2012
Coherence arises from the superposition principle and plays a key role in quantum mechanics. Recently, Baumgratz et al. [T. Baumgratz, M. Cramer, B. Plenio, Phys. Rev. Lett. 113, 140401 (2014)] established rigorous framework for quantifying coherence of finite dimensional states. In this work we provide Gaussian states explicitly give measure based on relative entropy.
The rigorous resource framework of quantum coherence has been set up recently and excited a wide variety interests. Here we show that cavity optomechanical system, as an emerging platform, can behave with certain value at macroscopic scale. We also find the difference between total sum optical mechanical just equals their mutual information. Motivated by detection entanglement, experimentally feasible scheme to probe is proposed.
We investigate the coherence of quantum channels and establish a resource theory for quantifying channels. To this aim, we define incoherent superchannels. This recovers case states when view as special also allows some analytical expressions measures.
Quantum coherence with respect to orthonormal bases has been studied extensively in the past few years. Recently, Bischof, Kampermann, and Bru\ss{} [Phys. Rev. Lett. 123, 110402 (2019)] generalized it case of general positive operator-valued measure (POVM) measurements. Such POVM-based coherence, including block as a special case, have significant operational interpretations quantifying advantage quantum states information processing. In this work we first establish an alternative framework...
It is a long-standing debate that why quantum mechanics uses complex numbers but not real only. To address this topic, in recent years, the imaginarity theory has been developed way of resource theory. However, existing mainly focuses on systems with finite dimensions. Gaussian states are widely used many fields physics, they infinite In paper we establish for bosonic states. do so, under Fock basis, determine and channels terms means covariance matrices Also, provide two imaginary measures...
Abstract Baumgratz, Cramer and Plenio established a rigorous framework (BCP framework) for quantifying the coherence of quantum states [Phys. Rev. Lett. 113, 140401 (2014)]. In BCP framework, state is called incoherent if it diagonal in fixed orthonormal basis, measure should satisfy some conditions. For ρ has nonzero imaginary part, then must be coherent. How to quantitatively characterize this fact? work, we show that any C property C(ρ) −C(Reρ) ≥ 0 invariant under complex conjugation,...
For two orthonormal bases of a $d$-dimensional complex Hilbert space, the notion complete incompatibility was introduced recently by De Bi\`{e}vre [Phys. Rev. Lett. 127, 190404 (2021)]. In this work, we introduce $s$-order with positive integer $s$ satisfying $2\leq s\leq d+1.$ particular, $(d+1)$-order just coincides incompatibility. We establish some relations between incompatibility, minimal support uncertainty and rank deficiency transition matrix. As an example, determine order discrete...
Obesity is a risk factor for chronic kidney disease, and its prevalence among the elderly increasing. We investigated effects of changes in body fat percentage (BFP) on longitudinal estimated glomerular filtration rate (eGFR) elderly. This prospective cohort study included 390 participants aged >65 years who underwent bioelectrical impedance analysis at baseline follow-up as part Korean Longitudinal Study Health Aging. After median period 5.3 years, BFP was significantly higher than that...
Baumgratz, Cramer and Plenio established a rigorous framework (BCP framework) for quantifying the coherence of quantum states [\href{http://dx.doi.org/10.1103/PhysRevLett.113.140401}{Phys. Rev. Lett. 113, 140401 (2014)}]. In BCP framework, state is called incoherent if it diagonal in fixed orthonormal basis, measure should satisfy some conditions. For $\rho $ has nonzero imaginary part, then must be coherent. How to quantitatively characterize this fact? work, we show that any $C$ property...
We investigate the dynamics of entanglement and quantum discord two qubits in liquid state homonuclear nuclear magnetic resonance. Applying a phenomenological description for resonance under relaxation process, taking group typical parameters resonance, we show that when zero initial experiences its disappears completely after sequence so-called sudden deaths revivals, while retains remarkable values oscillations. That is to say, more robust than entanglement.
Geometric quantum discord, proposed by Dakic, Vedral, and Brukner [Phys. Rev. Lett. 105 (2010) 190502], is an important measure for bipartite correlations. In this paper, we generalize it to multipartite states, call the generalized version geometric global discord (GGQD). We characterize GGQD in different ways, provide some special states which allow analytical GGQD.
We aimed to elucidate the effect of bilirubin on dyslipidemia and nephropathy in a diabetes mellitus (DM) type I animal model. Sprague-Dawley rats were separated into control, DM, bilirubin-treated DM (Bil) groups. The Bil group was injected intraperitoneally with 60 mg/kg 3 times per week hepatoma cells cultured at concentration 0.3 mg/dL. showed lower serum creatinine levels 5 weeks after onset. Bilirubin treatment also decreased amount mesangial matrix, lowered expression renal collagen...
The original definition of quantum discord bipartite states was defined over projective measurements, in this paper we discuss some generalizations it. These are general rank-one measurements or Neumark extension measurements. We investigate the nonnegativity, zero-discord sets all these discords and properties about them.
Coherence is a fundamental ingredient for quantum physics and key resource information theory. Baumgratz, Cramer, Plenio established rigorous framework (BCP framework) quantifying coherence [T. M. B. Plenio, Phys. Rev. Lett. \textbf{113}, 140401 (2014)]. In this paper, under the BCP we provide two classes of measures based on sandwiched R\'{e}nyi relative entropy. We also prove that can not get new $f(C(\cdot))$ by function $f$ acting given measure $C$, except case qubit states.
Since a rigorous framework for quantifying quantum coherence was established by Baumgratz et al. [T. Baumgratz, M. Cramer, and B. Plenio, Phys. Rev. Lett. 113, 140401 (2014)], many measures have been found. For given measure $C$, extending the values of $C$ on pure states to mixed convex roof construction, we will get valid $\overline{C}$, call $\overline{C}$ corresponding quantifier $C$. Whether $C=\overline{C}$ is an important question. In this work, show that widely used measure, $l_{1}$...