A5080889029- Quantum Information and Cryptography
- Quantum Computing Algorithms and Architecture
- Quantum Mechanics and Applications
- Heavy metals in environment
- Neural Networks and Reservoir Computing
- Heavy Metal Exposure and Toxicity
- Heavy Metals in Plants
- Geochemistry and Geologic Mapping
- Quantum-Dot Cellular Automata
- Water Quality and Pollution Assessment
- Air Quality and Health Impacts
- Chromium effects and bioremediation
- Analytical Chemistry and Chromatography
- Trace Elements in Health
- Quantum optics and atomic interactions
- Mercury impact and mitigation studies
- Cold Atom Physics and Bose-Einstein Condensates
- Molecular Communication and Nanonetworks
- Effects and risks of endocrine disrupting chemicals
- Textile materials and evaluations
- Contact Dermatitis and Allergies
- Skin Protection and Aging
- Geophysical and Geoelectrical Methods
- Therapeutic Uses of Natural Elements
- Analytical chemistry methods development
National University of Sciences and Technology
2013-2024
Abdus Salam Centre for Physics
2020-2024
University of Science and Technology of China
2014-2016
University of the Sciences
2015
University of Calgary
2013
Quaid-i-Azam University
2002-2009
Technical University of Darmstadt
2005-2006
University of Birmingham
1977-1978
Abstract Semi‐quantum secure summation allows multiple parties with limited quantum capabilities to perform collective calculations under the premise of protecting privacy. However, current approaches are confined low‐dimensional states as information carriers and restricted scenarios involving two or three parties. This limitation hinders their universality ability fulfill requirements practical multiparty computations. To address these challenges, a novel semi‐quantum (SQSMS) protocol is...
Groundwater assessment in the Deccan basalt region of India is challenging due to its heterogeneous geology and complex aquifer dynamics. This study integrates hydrogeophysical methods, including DC resistivity time domain Induced Polarization (DCIP) slug tests, evaluate potential near Bhopal, Madhya Pradesh. The research focuses on both shallow unconfined deeper semi-confined aquifers within weathered fractured formations.Electrical surveys included more than 25 DCIP profiles targeting...
We develop a theory and accompanying mathematical model for quantum communication via any number of intermediate entanglement-swapping operations solve numerically up to three operations. Our yields two-photon interference visibilities postselected on photon counts at the stations. Realistic experimental conditions are accommodated through parametric down-conversion rate, photon-counter efficiencies dark-count rates, instrument transmission losses. calculate achievable distances such that...
We construct a theory for long-distance quantum communication based on sharing entanglement through linear chain of $N$ elementary swapping segments length $L=Nl$ where $l$ is the each swap setup. Entanglement achieved by optics, photon counting, and postselection, we include effects due to multiphoton sources, transmission loss, detector inefficiencies dark counts. Specifically calculate resultant four-mode state shared two parties at ends chain, derive two-photon coincidence rate expected...
Eleven metals (Ca, Mg, Fe, Zn, Cu, Mn, Cd, Co, Cr, Ni and Pb) were estimated in hair samples of metal arc welders a control group with the same socioeconomic background. Nitric acid–perchloric acid wet digestion procedure was adopted for estimation endogenous contents by ICP-AE technique. The study exhibited following increasing order concentrations: Cd < Co Cr Mn Cu Pb Fe Zn Mg Ca, average concentrations 0.54, 0.90, 2.0, 3.0, 3.3, 11.0, 12, 20, 170, 240 1050 µg g−1, dry weight,...
We develop a theory for long-distance quantum key distribution based on concatenated entanglement swapping using parametric down-conversion sources and show numerical results of our model. The model incorporates practical resources including multi-pair sources, inefficient detectors with dark counts lossy channels. calculate the maximum secret key-generation ratefor up to three stations by optimizing over resource parameters, simulation shows that range can in principle be markedly increased...
ABSTRACT Scalp hair samples of traffic control personnel (n = 71, ages between 25 to 45 years) were analyzed for 11 selected metals by using an Inductively Coupled Argon Plasma Atomic Emission (ICP-AE) technique nitric acid–perchloric acid based wet digestion method. The observed order mean concentrations (μ g/g, dry weight) the metals, in washed samples, was: Ca > Mg Zn Fe Pb Cu Ni Mn Cr Cd Co, with corresponding metal levels at 1042.2, 182.4, 169.7, 13.6, 12.4, 11.1, 2.7, 1.9, 0.8, and 0.7...
Abstract In this paper we investigate properties of continuous time chiral quantum walks, which possess complex valued edge weights in the underlying graph structure, together with an initial Gaussian wavefunction spread over a number vertices. We demonstrate that, for certain topology and phase matching conditions, are able to direct flow probability amplitudes specific direction inside network. design walk analogue optical circulator is combination cycle semi-infinite chain graphs....
ABSTRACT Nickel concentrations (μ g/g, dry weight) in the scalp hair of vegetable oil– and hydrogenated oil–consuming categories male female donors, ages between 1–66 years, were estimated by atomic absorption method to assess contribution nickel as a contaminant oil. Comparative estimates Ni content revealed enhanced metal levels for donors consuming oil both (29.33 μg/g, (27.09 population segments, whereas oil-consuming corresponding 11.51 μg/g 13.49 respectively. The elderly was found...