Lamb dicke parameter
Tīmeklis2024. gada 1. nov. · This overestimate is shown to be due to previous models neglecting the detuning dependence of the scattered photon frequency and Lamb-Dicke parameter, a second scattering process, interference effects on scattering rates to metastable manifolds, and the counter-rotating contribution to the Raman transition rate. Tīmeklis2024. gada 10. aug. · Despite a large Lamb-Dicke parameter, high initial temperature, and large differential light shifts between the excited state and the ground state, we …
Lamb dicke parameter
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Tīmeklis2016. gada 24. dec. · where \(\eta \) is the Lamb–Dicke parameter. If amplitude for the ion’s motion, along the axis of the trap, is much less than \(k_z=k\cos \theta \), then the first-order expansion given by Eq. is a reasonable approximation. Tīmeklis当Lamb-Dicke approximation( \eta\sqrt{\langle (a^\dagger+a)^2\rangle} \ll 1) 对上面的式子做一个泰勒展开并只保留到一阶项: \text{exp}(i\eta (a^\dagger +a)) = 1+i\eta(a^\dagger …
Tīmeklis2024. gada 30. jūl. · A special laser configuration, applicable to trapped ions, atoms, or cantilevers, designs a double-path quantum interference that eliminates the blue … Tīmeklis2024. gada 7. nov. · Numerical simulations show that the fidelity of the prepared entangled states is strongly affected by Lamb–Dicke parameters. In this paper, we …
Tīmeklis2024. gada 23. okt. · The Lamb Dicke regime corresponds to the condition. where Ψ m o t i o n is the motional part of the ion's wavefunction and k z = k ⋅ z ^ = k cos θ … TīmeklisIn is found that, in the absence of decoherence, the generated particle-field and two trapped-particles entanglement can be enhanced by increasing the Lamb-Dicke parameter. The Lamb-Dicke nonlinearity effect on the generated stationary entanglement, the sudden death and sudden birth of the entanglement, and the …
Tīmeklis2024. gada 8. apr. · Here, is the Lamb–Dicke parameter associated to the center-of-mass normal mode, and Ω r (Ω b) are the Rabi frequencies associated with the red and blue sideband beatnotes, respectively. This is the familiar Mølmer–Sørensen scheme, that is schematically described in figures 1 (a) and (b).
Tīmeklis2008. gada 24. apr. · Numerical solutions of the Liouville equation for a density matrix describing states of vibrational and electronic degrees of freedom show that vibrational cooling is feasible at even substantial... rockland county limousine serviceTīmeklisi) with the Lamb-Dicke parameter ηi ≡ k p ~/(2mωi) representing the small quantum fluc-tuation around the spin-dependent trajectory, which is determined by the initial thermal fluctuation and is small under a small Lamb-Dicke parameter ηi. In Eq. (7), we expand ∂V (xi) ∂xi to the linear order of kxiq (this is equiva- rockland county mobile crisis teamTīmeklis2011. gada 29. dec. · The nonlinearity function f j (n b) as a function of (a) phonon number n b for η = 0.08 and for different values of vibrational sideband j and (b) the … other words for bad newsTīmeklisnonlinear JCM for certain Lamb-Dicke parameters, showing very good agreement with the known Lamb-Dicke parameter h › 0.202s5d. The h ¿ 1 line corresponds to the Lamb-Dicke limit: V n,n11yV 0,1 › p n 1 1. g 0sn 1 1d0.7] is qualitatively consistent with this view. In the Lamb-Dicke limit the Rabi frequency between lev-els j# ,n land j" 11 … other words for bad tasteTīmeklisimportant parameters for controlling entangling opera-tions in ion traps. We show measurements of i) the dis-tance between two crystalline ions, ii) the Lamb-Dicke … rockland county legislatureTīmeklis2024. gada 18. febr. · Quantum phase transitions (QPTs) are usually associated with many-body systems in the thermodynamic limit when their ground states show abrupt changes at zero temperature with variation of a ... other words for bad timingTīmeklis2024. gada 1. nov. · This overestimate is shown to be due to previous models neglecting the detuning dependence of the scattered photon frequency and Lamb-Dicke parameter, a second scattering process, interference effects on scattering rates to metastable manifolds, and the counter-rotating contribution to the Raman transition rate. rockland county mask mandate