Results 61 to 70 of about 1,399,436 (192)
Scientific Reports, 2017 In this paper, we present a novel ultra-narrow linewidth fiber resonator formed by a tunable polarization maintaining (PM) π-phase-shifted fiber Bragg grating and a PM uniform fiber Bragg grating with a certain length of PM single mode fiber patch cable ...
Mingyong Jing +6 more
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Sensors, 2016 A near-IR CO trace gas sensor based on quartz-enhanced photoacoustic spectroscopy (QEPAS) is evaluated using humidified nitrogen samples. Relaxation processes in the CO-N2-H2O system are investigated.
Xukun Yin +10 more
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Electromagnetically induced transparency quantum memory for non-classical states of light
Advances in Physics: X, 2022 Quantum memory (QM) enables quantum state mapping between flying and stationary quantum states and is the building block of quantum information science, which enables to achieve a plethora of quantum information protocols, such as quantum state transfer ...
Xing Lei +5 more
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Variational quantum state eigensolver
npj Quantum Information, 2022 AbstractExtracting eigenvalues and eigenvectors of exponentially large matrices will be an important application of near-term quantum computers. The variational quantum eigensolver (VQE) treats the case when the matrix is a Hamiltonian. Here, we address the case when the matrix is a density matrix ρ.
M. Cerezo +3 more
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Minimax quantum state discrimination
, 2005 We derive the optimal measurement for quantum state discrimination without a priori probabilities, i.e. in a minimax strategy instead of the usually considered Bayesian one.
D'Ariano, Giacomo Mauro +2 more
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Diffusion of quantum states generated by a classical random walk
Современная математика: Фундаментальные направленияWe investigate a model that associates random walks in a finite-dimensional Euclidean coordinate space of a classical system with random quantum walks, i.e.
Yu. N. Orlov, V. Zh. Sakbaev
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IEEE Access, 2019 We study laser speckle reduction by light pipes, and we propose a new method to improve its efficiency. Proof-of-concept refractive optical elements (ROEs) with a staircase-like structure are introduced before a holographic diffuser to split a laser beam
Zhaomin Tong +5 more
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Parametric Excitation of Ultracold Sodium Atoms in an Optical Dipole Trap
Photonics, 2022 Parametric modulation is an effective tool to measure the trap frequency and investigate the atom dynamics in an optical dipole trap or lattices. Herein, we report on experimental research of parametric resonances in an optical dipole trap. By modulating
Ningxuan Zheng +5 more
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Physical Review A, 2005 It is shown that generic N-party pure quantum states (with equidimensional subsystems) are uniquely determined by their reduced states of just over half the parties; in other words, all the information in almost all N-party pure states is in the set of reduced states of just over half the parties.
Jones, NS, Linden, N
openaire +3 more sources
, 2009 We discuss in details the role of Wigner 6j symbol as the basic building block unifying such different fields as state sum models for quantum geometry, topological quantum field theory, statistical lattice models and quantum computing.
Carfora, Mauro +2 more
core +1 more source