Mean spin direction and spin squeezing in superpositions of spin
... spin squeezing is exactly the same as the spin entanglement, while spin-coherent states are always unentangled [22]. Because quantum entanglement is still puzzling, especially many-body entanglement, one can use spin squeezing to study entanglement. The concept of the squeezing in spin systems was c ...
... spin squeezing is exactly the same as the spin entanglement, while spin-coherent states are always unentangled [22]. Because quantum entanglement is still puzzling, especially many-body entanglement, one can use spin squeezing to study entanglement. The concept of the squeezing in spin systems was c ...
Triple resonance for a three-level system of a chiral molecule
... high-resolution spectroscopic methods. Le BarbuDebus, Zehnacker-Rentien and their collaborators10) employed UV and UV/IR double-resonance spectroscopy to record electronic and vibrational spectra of chiral complexes generated by supersonic expansion. Howard and his collaborators,11),12) Xu and her a ...
... high-resolution spectroscopic methods. Le BarbuDebus, Zehnacker-Rentien and their collaborators10) employed UV and UV/IR double-resonance spectroscopy to record electronic and vibrational spectra of chiral complexes generated by supersonic expansion. Howard and his collaborators,11),12) Xu and her a ...
Active semiconductor-based grating waveguide structures
... depletion region width decreases as the doping (and the free charge carriers concentration) increases. Therefore, the dependence of the refractive index change on the variation in charge carriers concentration is weaker in these configurations compared to the linear dependence induced in the forward ...
... depletion region width decreases as the doping (and the free charge carriers concentration) increases. Therefore, the dependence of the refractive index change on the variation in charge carriers concentration is weaker in these configurations compared to the linear dependence induced in the forward ...
fourier transform infra-red (ftir) spectroscopy
... levels. Infrared spectroscopy is the study of interactions between matter and electromagnetic fields in the IR region. In this spectral region, the EM waves mainly couple with the molecular vibrations. In other words, a molecule can be excited to a higher vibrational state by absorbing IR radiation. ...
... levels. Infrared spectroscopy is the study of interactions between matter and electromagnetic fields in the IR region. In this spectral region, the EM waves mainly couple with the molecular vibrations. In other words, a molecule can be excited to a higher vibrational state by absorbing IR radiation. ...
36 Magnetism
... How is the motion of electric charges similar to a common bar magnet? The magnet as a whole may be stationary, but it is composed of atoms whose electrons are in constant motion about atomic nuclei. This moving charge constitutes a tiny current and produces a magnetic field. ...
... How is the motion of electric charges similar to a common bar magnet? The magnet as a whole may be stationary, but it is composed of atoms whose electrons are in constant motion about atomic nuclei. This moving charge constitutes a tiny current and produces a magnetic field. ...
SHS_OH_flame_ApplOpt_revision_RJB
... a Xenics XEVA-LIN CCD camera. The tall pixels and short spectrometer focal length increase the extent of the GS in this case, making it more competitive with SHS. The following grating parameters were used in Equation (a9) for this calculation example: θ = 54º, f = 150 mm, h = 500 μm. At fixed spect ...
... a Xenics XEVA-LIN CCD camera. The tall pixels and short spectrometer focal length increase the extent of the GS in this case, making it more competitive with SHS. The following grating parameters were used in Equation (a9) for this calculation example: θ = 54º, f = 150 mm, h = 500 μm. At fixed spect ...
Tuning of resonance-spacing in a traveling-wave
... coupled-mode theory [12], it is expected that the resonance frequency of the individual resonators to split into even and odd coupled modes (or supermodes) upon coupling. The mode with lower (higher) resonance frequency is denoted as even (odd) throughout this work. This splitting can be comparable ...
... coupled-mode theory [12], it is expected that the resonance frequency of the individual resonators to split into even and odd coupled modes (or supermodes) upon coupling. The mode with lower (higher) resonance frequency is denoted as even (odd) throughout this work. This splitting can be comparable ...
Decay of oriented Rydberg wave packets excited with far-infrared radiation
... blue Stark state, and therefore after absorption of the farinfrared photon the wave function will still be located on the upfield side of the potential. The absence of structure in these electron emission transients is given by the fact that only a single state is dominantly excited and therefore th ...
... blue Stark state, and therefore after absorption of the farinfrared photon the wave function will still be located on the upfield side of the potential. The absence of structure in these electron emission transients is given by the fact that only a single state is dominantly excited and therefore th ...
Magnetism and Matter
... Introduction : As early as 600BC, Greeks knew that pieces of naturally occurring iron ore magnetite had the property of attracting small pieces of iron. The word magnetism originates from the place magnesia in Greece. This property of attraction is called magnetism. The iron ore showing this propert ...
... Introduction : As early as 600BC, Greeks knew that pieces of naturally occurring iron ore magnetite had the property of attracting small pieces of iron. The word magnetism originates from the place magnesia in Greece. This property of attraction is called magnetism. The iron ore showing this propert ...
Frenkel excitons
... 1. i) Calculate the exciton Rydberg and Bohr radius for GaAs, which has r =12.8, me* = 0.067 m0 and mh*=0.2m0. ii) GaAs has a cubic crystal structure with a unit cell size of 0.56 nm. Estimate the number of unit cells contained within the orbit of the n=1 exciton. Hence justify the validity of assu ...
... 1. i) Calculate the exciton Rydberg and Bohr radius for GaAs, which has r =12.8, me* = 0.067 m0 and mh*=0.2m0. ii) GaAs has a cubic crystal structure with a unit cell size of 0.56 nm. Estimate the number of unit cells contained within the orbit of the n=1 exciton. Hence justify the validity of assu ...
幻灯片 1
... 1. i) Calculate the exciton Rydberg and Bohr radius for GaAs, which has r =12.8, me* = 0.067 m0 and mh*=0.2m0. ii) GaAs has a cubic crystal structure with a unit cell size of 0.56 nm. Estimate the number of unit cells contained within the orbit of the n=1 exciton. Hence justify the validity of assu ...
... 1. i) Calculate the exciton Rydberg and Bohr radius for GaAs, which has r =12.8, me* = 0.067 m0 and mh*=0.2m0. ii) GaAs has a cubic crystal structure with a unit cell size of 0.56 nm. Estimate the number of unit cells contained within the orbit of the n=1 exciton. Hence justify the validity of assu ...
New trends in the investigations of macrocyclic magnets J. M , A. T
... [CuL]X2 (where L = 6,13-bis(dodecylaminomethylidene)-1,4,8,11-tetrazacyclotetradeca-4,7,11,14-tetraene, X = Cl–, Br–, PF6–) [11]. Magnetic properties of these compounds were compared indicating that all copper compounds studied behave as weakly interacting magnets. On the other hand, the synthesis o ...
... [CuL]X2 (where L = 6,13-bis(dodecylaminomethylidene)-1,4,8,11-tetrazacyclotetradeca-4,7,11,14-tetraene, X = Cl–, Br–, PF6–) [11]. Magnetic properties of these compounds were compared indicating that all copper compounds studied behave as weakly interacting magnets. On the other hand, the synthesis o ...
Electron paramagnetic resonance
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a technique for studying materials with unpaired electrons. The basic concepts of EPR are analogous to those of nuclear magnetic resonance (NMR), but it is electron spins that are excited instead of the spins of atomic nuclei. EPR spectroscopy is particularly useful for studying metal complexes or organic radicals. EPR was first observed in Kazan State University by Soviet physicist Yevgeny Zavoisky in 1944, and was developed independently at the same time by Brebis Bleaney at the University of Oxford.