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Exploring the impact of weak measurements on exciton-exciton interactions

Communications in Theoretical Physics 2024年第11期76卷 42-47页

作者： Fatima-Zahra Siyouri Olivier Giraud Yassine Hassouni Equipe Sciences de la Matiere et du Rayonnement(ESMaR) Departement de PhysiqueFaculte des SciencesUniversite Mohammed VAgdalAv.Ibn BattoutaB.P.1014AgdalRabatMorocco Laboratoire de Physique Theorique et Modeles Statistiques(LPTMS) Faculte des sciencesUniversite parissaclayParisFrance

In our study of super quantum discord between two excitonic qubits inside a coupled semiconductor quantum dots system,our primary focus is to uncover the impact of weak measurement on its quantum *** achieve this,we analyze how varying the measurement strength x,affects this super quantum correlation in the presence of thermal ***,we assess the effect of this variation on the system's evolution against its associated quantum parameters;external electric fields,exciton-exciton dipole interaction energy and F?rster *** findings indicate that adjusting x to smaller values effectively enhances the super quantum correlation,making weak measurements act as a *** adjustment ensures its robustness against thermal effects while preserving the non-classical attributes of the ***,our study unveils that the effect of weak measurements on this latter surpasses the quantum effects associated with the ***,manipulating the parameter x allows the weak measurement to function as a versatile tool for modulating quantum characteristics and controlling exciton-exciton interactions within the coupled semiconductor quantum dots system.

关键词： super quantum discord weak measurements measurement strength x semiconductor quantum dots exciton-exciton interactions

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Ultrasensitive Protein Concentration Characterization Based on weak measurements

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Photonic Sensors 2022年第3期12卷 10-16页

作者： Bowen SONG Binglin CHEN Chen YU Hua YANG College of Computer Science and Electronic Engineering Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of EducationHunan UniversityChangsha 410082China State Key Laboratory of Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China

An optical rotation bio-sensor based on the photonic spin Hall effect was established and applied to detecting the concentration varieties of chiral *** optical rotation,introduced by sample solutions,was exploited to modulate the postselected polarization of a weak measurement *** work has been done in the case of glucose and ***,little attention has been paid for biomolecules,such as proteins and amino *** this modulation,the optical rotation can be determined through the direction and spin accumulation of light spots,thus mirroring the concentration of solutions.A resolution of 2×10^(-4) degree was achieved.

关键词： weak measurements the photonic spin Hall effect optical rotation bio-sensor

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