Lamb-dicke
Tīmeklis2024. gada 19. jūl. · is not restricted to the Lamb-Dicke limit, i.e. the size of the trap ground state can be larger than the optical wavelength. This cooling scheme may be useful in the context of quantum computations with ions and Bose-Einstein condensation. One of the major goals of atomic physics is to laser-cool trapped … Tīmeklis2014. gada 13. febr. · In the Lamb-Dicke limit (), together with the condition Φ x = Φ 0 /2, an effective Hamiltonian for Fig. 1 is obtained by where is the collective spin-photon coupling strength.
Lamb-dicke
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Tīmeklis2014. gada 17. jūn. · The Lamb-Dicke confinement and the light-shift cancellation allow us to approach the natural linewidth of the transition. However, as shown by the red … TīmeklisIn ion trapping experiments, the Lamb Dicke regime (or Lamb Dicke limit) is a quantum regime in which the coupling (induced by an external light field) between the ion's internal qubit's states and its motional states is sufficiently small so that transitions that change the motional quantum number by more than one, are strongly suppressed. 7 …
Tīmeklis2024. gada 18. janv. · In such traps, an ion cannot be Doppler cooled near to the Lamb-Dicke regime [η2 (2〈n〉+1)≪1]. Outside the Lamb-Dicke regime, the sideband cooling dynamics are altered by the existence of ... In ion trapping experiments, laser fields are used to couple the internal state of an ion with its motional state. The mechanical recoil of the ion upon absorption or emission of a photon is described by the operators $${\displaystyle \exp(\pm ik_{z}z)}$$. These operators induce a displacement of the … Skatīt vairāk In ion trapping and atomic physics experiments, the Lamb Dicke regime (or Lamb Dicke limit) is a quantum regime in which the coupling (induced by an external light field) between an ion or atom's internal Skatīt vairāk • Laser cooling • Resolved sideband cooling Skatīt vairāk Considering the ion's motion along the direction of the static trapping potential of an ion trap (the axial motion in $${\displaystyle z}$$-direction), the trap potential can be … Skatīt vairāk In the Lamb Dicke regime spontaneous decay occurs predominantly at the frequency of the qubit's internal transition (carrier … Skatīt vairāk
Tīmeklis1999. gada 1. maijs · Sideband cooling in the Lamb-Dicke regime is shown to work analogously to sideband cooling of a single ion. Outside the Lamb-Dicke regime, the … Tīmeklis1998. gada 7. dec. · We study laser cooling of two ions that are trapped in a harmonic potential and interact by Coulomb repulsion. Sideband cooling in the Lamb-Dicke regime is shown to work analogously to sideband cooling of a single ion. Outside the Lamb-Dicke regime, the incommensurable frequencies of the two vibrational modes …
Tīmeklis2024. gada 13. apr. · We report continuous Raman sideband cooling of a long ion chain close to the motional ground state beyond the Lamb-Dicke (LD) regime. By driving multiple sideband transitions simultaneously, we show that nearly all axial modes of a 24-ion chain are cooled to the ground state, with an LD parameter as large as …
Tīmeklis2014. gada 13. febr. · In the Lamb-Dicke limit (), together with the condition Φ x = Φ 0 /2, an effective Hamiltonian for Fig. 1 is obtained by where is the collective spin … care of gaillardia plantsTīmeklis2024. gada 9. febr. · Here we introduce a general and accessible approach that enables Doppler-free rotational spectroscopy. It makes use of the strong radial spatial … care of gaura plantTīmeklis2024. gada 8. sept. · Download PDF Abstract: We present the results of simulations of optical sideband cooling of atomic ions in a trap with a shallow potential well. In such … care of furTīmeklis2024. gada 26. marts · Fig. 1: Principle of the Lamb–Dicke rotational spectroscopy of sympathetically cooled molecular ions. The ion cluster is prolate, and the … brookwood baptist medical center princetonTīmeklisLamb-Dicke perturbation theory in terms of final tem-peratures and cooling rates. Beyond the Lamb-Dicke limit, this characterization becomes unsuitable: on the one hand, the vibrational degrees of freedom are not strictly thermal and, on the other hand, the decay pro-cess does not follow a single exponential. Instead, the brookwood baptist psychiatricTīmeklis2007. gada 7. febr. · Rotational spectroscopy of cold and trapped molecular ions in the Lamb–Dicke regime. Abstract: Sympathetic cooling of trapped ions has been established as a powerful technique for the manipulation of non-laser-coolable ions1–4. For molecular ions, it promises vastly enhanced spectroscopic resolution and accuracy. brookwood baptist primary care hueytownTīmeklisThe Lamb-Dicke parameter actually is defined as. Upon absorption or emission of a photon with momentum the kinetic energy of the ion is changed by the amount of the recoil energy where the definition of the recoil frequency is. The square of the Lamb Dicke parameter then is given by. Hence the Lamb Dicke parameter quantifies the … brookwood baseball and softball