The quantum entropic uncertainty relation and entanglement witness in the two-atom system coupling with non-Markovian environments are studied by time-convolutionless master-equation approach.The influence of effect detuning on lower bound is discussed detail.The results show that, only if two reservoirs identical, increasing can reduce relation, lengthen time region during which be witnessed, effectively protect witnessed relation.The applied measurement, cryptography task information processing.

To build and evaluate a deep learning radiomics nomogram (DLRN) for preoperative prediction of lung metastasis (LM) status in patients with soft tissue sarcoma (STS).In total, 242 STS (training set, n=116; external validation n=126) who underwent magnetic resonance imaging were retrospectively enrolled this study. We identified independent predictors LM-status evaluated their performance. The minimum redundancy maximum relevance (mRMR) method least absolute shrinkage selection operator...

In this work, the quantum coherence of a V-type atom in dissipative cavity under detuning and weak measurement reversal is studied using methods such as Fano theorem, Schrodinger equation l1 norm coherence. The atomic density operator derived, coherences different initial states are investigated detail parameters including spontaneously generated interference (SGI), atom-reservoir coupling, between cavity. results indicate that, strong coupling can induce sudden death (CSD) birth (CSB),...

A novel direct-laser writing fabrication process for microaxicons is demonstrated.A fiber-axicon-generated Bessel beam was utilized to write on UV-curable optical epoxy form new axicons and axicon arrays, geometrical parameters of the replicated were analyzed in terms both apex angle proximity axicons.The shape fabricated demonstrated be controllable through laser exposure, proximity, source axicon, are capable generating a quality with an excellent focusing performance.

Background: Very low birth weight premature (VLBW) infants with bronchopulmonary dysplasia (BPD) often need prolonged respiratory support, which is associated worse outcomes. The application of neurally adjusted ventilatory assist ventilation (NAVA) in BPD has rarely been reported. This study investigated whether NAVA safe and can reduce the duration support VLBW established or evolving BPD. Methods: retrospective matched-cohort included patients admitted to our NICU between April 2017 2019...

We demonstrate the optical manipulation of biological particles using a low-order LP21 fiber mode. The focused four-lobed mode distribution was theoretically and experimentally found to be effective in tweezer applications, including selective cellular pick-up, pairing, grouping or separation, as well rotation cell dimers clusters. Our proposed theoretical model estimates both translational dragging force rotational torque good accordance with experimental data. With simple all-fiber...

In this work, the entanglement dynamics of a moving-biparticle system driven by an external classical field are investigated, where is coupled with zero temperature common environment. The analytical expressions density operator and can be obtained using dressed-state basis when total excitation number one. We also discuss in detail effects different parameters on dynamics. results show that driving not only protect entanglement, but effectively eliminate influence qubit velocity detuning...

The dynamics evolutions of discord and entanglement two atoms in independent Lorentzian reservoirs at zero or finite temperature have been investigated by using the time-convolutionless master-equation method.Our results show that, when both non-Markovian effect detuning are present simultaneously, due to memory feedback reservoirs, can be effectively protected even nonzero increasing detuning.The different robustness for initial states their may changes under certain conditions.Nonzero...

Quantum coherence and non-Markovianity of an atom in a dissipative cavity under weak measurement are investigated this work. We find that: the quantum obviously depends on initial atomic state, strength its reversal, atom–cavity coupling constant non-Markovian effect. It is obvious that effect protects better. The preserved more efficiently for larger atom– coupling. stronger is, slowly reduces. can be effectively protected by means controlling these physical parameters.

The squeezing dynamics of two independent two-level atoms off-resonantly coupled to non-Markovian reservoirs is studied by the time-convolutionless master-equation approach. We find that dependent on both detuning and effect. Our results show that, in regime, bigger stronger effect are, larger strength is. And can be effectively protected for a long time when are present simultaneously. physical mechanism not only promote feedback information from environment into atomic system but also...

We investigate the quantum speed limit time (QSLT) of a two-level atom under quantum-jump-based feedback control or homodyne-based control. Our results show that two different schemes have influences on evolutionary speed. By adjusting parameters, can induce speedup atomic evolution from an excited state, but cannot change Additionally, QSLT for whole dynamical process is explored. Under control, displays oscillatory behaviors, which implies multiple speed-up and speed-down processes during...

We study the non-Markovianity and quantum speedup of a two-level atom (quantum system interest) in dissipative Jaynes-Cumming model, where is embedded single-mode cavity, which leaky being coupled to an external reservoir with Ohmic spectral density. obtain characterized by using probability atomic excited state negative decoherence rate time-local master equation. also calculate speed limit time (QSLT) evolution process atom. The results show that, atom-cavity coupling main physical reasons...

The entanglement witness and the entropy uncertainty are investigated by using pseudomode theory for open two-atom system under quantum Zeno effect. results show that, only when two spectrums satisfy strong coupling with atom, time of can be prolonged lower bound entropic reduced, witnessed many times. We also gave corresponding physical explanation non-Markovianity. effect not very effectively prolong reduce uncertainty, but greatly enhance value witness.

Based on the time-convolutionless master-equation approach, entropic uncertainty in presence of quantum memory is investigated for a two-atom system two dissipative cavities. We find that can be controlled by non-Markovian effect and atom-cavity coupling. The results show increasing coupling enlarge oscillating frequencies decrease minimal value uncertainty. Enhancing reduce In particular, if or very strong, will close to zero at certain time points, thus Bob minimize his about Alice's...

The quantum discord of the two-atom system, which is in two independent Lorentzian reservoirs and Ohmic with Lorentz–Drude cutoff function, respectively, are at zero temperature, studied by applying time-convolutionless master-equation method. We find that system dependent on characteristics non-Markovian environments. results show can be effectively protected not only reservoirs, but also ohmic function. Finally, physical interpretations for these given via correlation

Based on the entropic uncertainty relation in presence of quantum memory, entanglement witness two atoms dissipative cavities is investigated by using time-convolutionless master-equation approach. We discuss detail influences non-Markovian effect and atom–cavity coupling lower bound witness. The results show that, with increasing, number time zone witnessed will increase so that can be repeatedly witnessed. Enhancing add lengthen applied measurement, detecting, cryptography task,...

Based on the time-convolutionless master-equation approach, we investigate squeezing of light field in a dissipative Jaynes-Cummings model. The results show that can be generated when atom transits to ground state from an excited state, and then collapse-revival phenomenon will occur due atom-cavity coupling. Enhancing coupling increase frequency squeezing. stronger non-Markovian effect is, more obvious is. oscillatory is dependents resonant atom-cavity.

In this work, we study a coupled system of two V-type atoms with dipole-dipole interaction in dissipative single-mode cavity, which couples an external environment. We obtain the analytical solution model by solving time dependent Schrodinger equation after diagonalize Hamiltonian cavity introducing set new creation and annihilation operators according to Fano theorem. also detailedly discuss influences cavity-environment coupling, spontaneously generated interference (SGI) parameter between...

The population dynamics of a two-atom system, which is in two independent Lorentzian reservoirs or Ohmic respectively, where the are at zero temperature finite temperature, studied by using time-convolutionless master-equation method. influences characteristics and non-Markovian environment on excited atoms analyzed. We find that trapping related to environment. results show that, can be effectively trapped state both reservoirs. At will quickly decay nonzero value.