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- Reproduction of the Lorenz signal with an
**oscillator**trained by cross-validation. ... Reconstructed voiced part of the voiced fricative /zh/ by combining linear prediction and the**oscillator**model. ... Reconstruction of the Lorenz system by the**oscillator**model with Bayesian training using embedding dimension N=5. ... Nonlinear predictor (a) and**oscillator**model (b). ... Phase space embeddings of the output of the original Lorenz system (top), the training signals (middle row), and the output of the**oscillator**model (bottom row). The embedding dimension used for the**oscillator**is N=3, the RBF network comprises 64 centers. ...**Oscillator**model... Institute of Communications and Radio-**Frequency**Engineering, Vienna University of Technology, Vienna 1040, AustriaData Types:- Image
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- (Color online) |A|2 is the probability of finding the spin system in the state |⇓↓〉. It
**oscillates**at the high**frequency**D (=2.88GHz). The**frequency**of the beats is χ/2 (=16.7MHz). The amplitude of**oscillations**is also modulated by an additional cosine wave signal of**frequency**χ (see text). |C|2 is the probability of finding the spin system in the state |0↓〉. It**oscillates**at the low**frequency**χ. It is almost zero in the time interval 90–100ns. The probability of finding spin system in the state |⇑↓〉, |B|2, has the same**oscillations**than |A|2 but it is anti-phase (see Fig. 3). ... Ideal truth table and schematic representation of a two-**qubit**CNOT gate irradiated by a sequence of two microwave π/2-pulses of equal width t and a variable waiting time between pulses τ. In the text, x and y are the states of two impurity spins of diamond, namely the spin-12 carried by the P1 center and the spin-1 carried by the NV−1 color center. The symbol ⊕ is the addition modulo 2, or equivalently the XOR operation. ... (Color online) NV−1 Rabi**oscillations**. Control**qubit**down: blue, red and green lines correspond, respectively, to the time evolution of |A|2, |B|2 and |C|2, i.e., the probabilities of finding the spin system in the state |⇓↓〉, |⇑↓〉 and |0↓〉. Control**qubit**up: red, blue and green lines represent, respectively, |A′|2, |B′|2 and |C′|2, i.e., the probabilities of finding the spin system in the state |⇓↑〉, |⇑↑〉 and |0↑〉, i.e., |A′|2=|B|2, |B′|2=|A|2 and |C′|2=|C|2 (see text). Fig. 4 gives details in the interval 60–120ns. They can also be revealed by a zoom in.Data Types:- Image
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- Silicon beam: (a) instantaneous
**frequency**; (b) instantaneous damping; (c) equivalent modal**frequency**; (d) equivalent modal damping. _______ primary vacuum; - - - - pressure ∼300 mbar; . . . . . pressure ∼600mbar; – · – · – atmospheric pressure. ... Quartz beam: (a) equivalent modal**frequency**; (b) equivalent modal damping. _______ primary vacuum; - - - - pressure ∼300mbar; . . . . . pressure ∼600mbar; – · – · – atmospheric pressure. ... (a) Identified modal**frequency**: quartz structure; (b) identified modal**frequency**: lithium niobate structure; (c) identified modal damping: quartz structure; (d) identified modal damping: lithium niobate structure; symbols: experimental values; lines: polynomial fitting. and _______ primary vacuum; ● and - - - - pressure ∼300 mbar; ▴ and . . . . . pressure ∼600mbar; ■ and – · – · – atmospheric pressure. ... Department of Physics and Metrology of**Oscillator**, FEMTO-ST Institute, 32 Avenue de l’Observatoire, 25044 Besançon, France... (a) Instantaneous**frequency**; (b) instantaneous damping; (c) equivalent modal**frequency**; (d) equivalent modal damping. _______ 0.2ms−1; - - - - 0.15ms−1; . . . . . 0.10ms−1. ... Lithium niobate beam: (a) equivalent modal**frequency**; (b) equivalent modal damping. _______ primary vacuum; - - - - pressure ∼300mbar; . . . . . pressure ∼600mbar; – · – · – atmospheric pressure.Data Types:- Image
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- Voltage controlled
**oscillator**... Microwave Communication and Radio**Frequency**Integrated Circuit Lab, Department and Institute of Electronic Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou 64002, Yunlin, Taiwan, ROC... Output**oscillation****frequency**versus control voltage of (a) chip1 VCO. (b) chip2 VCO.Data Types:- Image
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- Average PTO power as a function of
**oscillating****frequency**for straight (♦: solid line) and bent leg (□: broken line) tines (**oscillation**angle β=+27°). ... Subsoiler draft signals with time for the control and the range of**oscillating****frequencies**. ... Dominant**frequency**of draft signal over the**oscillating****frequency**range. ... Proportion of cycle time for cutting and compaction phases versus**oscillating****frequency**(**oscillation**angle β=+27°). ... Dominant**frequency**of torque signal over the**oscillating****frequency**range. ...**Frequency**...**Oscillating**tineData Types:- Image
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**Qubits**in solids... Schematic diagram of**qubits**addressed in a**frequency**domain. The ions whose 3H4(1)± 3 2–1D2(1) transitions are resonant with a common cavity mode are employed as**qubits**. ... Basic scheme of the concept of the**frequency**-domain quantum computer. The atoms are coupled to a single cavity mode. Lasers with**frequencies**of νk and νl are directed onto the set of atoms and interact with the kth and lth atoms selectively.Data Types:- Image
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- Optoelectronics and High
**Frequency**Device Research Laboratories, 34 Miyukigaoka, Tsukuba, Ibaraki 305, Japan... High-**frequency**characteristics of the p-ch HJFETData Types:- Image
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- Illustration of a linear ion trap including an axial magnetic field gradient. The static field makes individual ions distinguishable in
**frequency**space by Zeeman-shifting their internal energy levels (solid horizontal lines represent**qubit**states). In addition, it mediates the coupling between internal and external degrees of freedom when a driving field is applied (dashed horizontal lines stand for vibrational energy levels of the ion string, see text). ... Rabi**oscillations**on the optical E2 transition S1/2-D5/2 in Ba + . A fit of the data (solid line) yields a Rabi**frequency**of 71.4 × 2πkHz and a transversal relaxation time of 100 μs (determined by the coherence time of the ir light used to drive the E2 resonance). ... Illustration of the coupled system ‘**qubit**⊗ harmonic**oscillator**’ in a trap with magnetic field gradient. Internal**qubit**transitions lead to a displacement dz of the ion from its initial equilibrium position and consequently to the excitation of vibrational motion. In the formal description the usual Lamb–Dicke parameter is replaced by a new effective one (see text). ... (a) Relevant energy levels and transitions in 138Ba + . (b) Schematic drawing of major experimental elements. OPO: Optical parametric**oscillator**; YAG: Nd:YAG laser; LD: laser diode; DSP: Digital signal processing system allows for real time control of experimental parameters; AOM: Acousto-optic modulators used as optical switches and for tuning of laser light; PM: Photo multiplier tube, serves for detection of resonance fluorescence. All lasers are**frequency**and intensity stabilized (not shown). ... Schematic drawing of the resonances of**qubits**j and j + 1 with some accompanying sideband resonances. The angular**frequency**vN corresponds to the Nth axial vibrational mode, and the**frequency**separation between carrier resonances is denoted by δω.Data Types:- Image
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- Stepped-
**frequency**continuous-wave radar... For the unshifted LPT the first raw**frequency**-domain sample obtained means of the VNA is aligned with the DFT**frequency**bin representing**frequency**Δf. Thus, raw**frequency**-domain samples do not coincide with the appropriate DFT**frequency**bins. The negative**frequency**components are obtained by means of mirroring a conjugated version of the positive ones around DC. Throughout the paper, the positive and negative spectra are depicted by the same individual diagonal patterns. ... The extended array structure with non-zero values only for positive**frequencies**. Raw data samples are starting at DFT**frequency**Δf. ... The extended array structure with non-zero values only for negative**frequencies**. Mirrored conjugated raw data samples are starting at DFT**frequency**−Δf. ... SNR of the**frequency**-domain outcome of the FFT for different numbers n of time-domain samples of a sine tone of**frequency**2GHz with additive Gaussian noise of standard deviation σ=0.8 sampled with constant sampling**frequency**, fs=10GHz. ... Department for High-**Frequency**Technology, Technische Universität Braunschweig, Schleinitzstraße 22, 38106 Braunschweig, Germany...**Frequency**-domain signal processing... High**oscillations**for the shifted LPT occurs when fmin is large compared to Δf.Data Types:- Image
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- Detection and manipulation of the
**qubit**. (a) Fluorescence image of nanodiamond prepared on the CPW transmission line. NV S1 is circled. The inset is a photo of CPW with 20μm gaps fabricated on a silica glass. (b) CW ODMR spectrum for NV S1. The inset is energy levels of NV center. A 532nm laser is used to excite and initialize the NV center. Fluorescence is collected by a confocal microscope. (c) Rabi**oscillation**of NV S1. Rabi**oscillation**period is about 62ns. (d) Hahn echo and CPMG control pulse sequences. πx (πy) implies the direction of microwave magnetic fields parallel to x (y). ... Spectral density of the spin bath. (a) NV S1, (b) NV S2. All values of spectral density S(ω) of the spin bath are extracted from the CPMG data (blue points). Each blue data point represents a specific probed**frequency**ω=πn/t, in which n is the number of control pulses and t is the specific duration. The red points are the average values at a certain**frequency**. The mean spectral density is fit to the Lorentzian function (Eq. (3)) (green line). (For interpretation of the references to color in this figure caption, the reader is referred to the web version of this article.) ... Characterization of lifetime of NV center spins. (a) Ramsey interference of NV S1 (circle) and NV S2 (diamond). The**oscillation**in Ramsey signal originates from the beating among different transitions corresponding to the host three 14N nuclear spin states. The**oscillation****frequency**of Ramsey signal is equal to microwave detuning from spin resonance. Solid lines ~exp[−(t/T2⁎)m] fit the experimental data points, where m is a free parameter. (b) Comparison of Hahn echo coherence time T2 of NV S1 (circle) and NV S2 (diamond). The solid lines are fits to ~exp[−(t/T2)p], in which p is a fit parameter.Data Types:- Image
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