Superconducting phase qubit coupled to a nanomechanical resonator:
... model of quantum optics [21]. For a qubit with energy level spacing ⌬⑀ coupled with strength g to a resonator with angular frequency 0 and quality factor Q, the RWA is valid when both 兩0 − ⌬⑀ / ប兩 Ⰶ 0 / Q and g Ⰶ ⌬⑀. However, the resonant Rabi frequency, which is proportional to g, is then much s ...
... model of quantum optics [21]. For a qubit with energy level spacing ⌬⑀ coupled with strength g to a resonator with angular frequency 0 and quality factor Q, the RWA is valid when both 兩0 − ⌬⑀ / ប兩 Ⰶ 0 / Q and g Ⰶ ⌬⑀. However, the resonant Rabi frequency, which is proportional to g, is then much s ...
physics and the real world - sdsu
... intentionality resulting in existence of such objects, even though this intentionality is clearly causally effective. This paper examines the claim that the underlying physics uniquely causally determines what happens, even though we can’t predict the outcome. It suggests that what occurs is the con ...
... intentionality resulting in existence of such objects, even though this intentionality is clearly causally effective. This paper examines the claim that the underlying physics uniquely causally determines what happens, even though we can’t predict the outcome. It suggests that what occurs is the con ...
Steady-state entanglement of two atoms created by classical driving
... Here N is the normalization factor and ⍀ and E are replaced by the dimensionless parameters ⍀ / ⌫ and E / ⌫, respectively. To determine the settings, leading to the maximum possible amount of entanglement in the system under consideration, we choose ⍀ = E2, where is a dimensionless constant to be ...
... Here N is the normalization factor and ⍀ and E are replaced by the dimensionless parameters ⍀ / ⌫ and E / ⌫, respectively. To determine the settings, leading to the maximum possible amount of entanglement in the system under consideration, we choose ⍀ = E2, where is a dimensionless constant to be ...
Renormalization
In quantum field theory, the statistical mechanics of fields, and the theory of self-similar geometric structures, renormalization is any of a collection of techniques used to treat infinities arising in calculated quantities.Renormalization specifies relationships between parameters in the theory when the parameters describing large distance scales differ from the parameters describing small distances. Physically, the pileup of contributions from an infinity of scales involved in a problem may then result in infinities. When describing space and time as a continuum, certain statistical and quantum mechanical constructions are ill defined. To define them, this continuum limit, the removal of the ""construction scaffolding"" of lattices at various scales, has to be taken carefully, as detailed below.Renormalization was first developed in quantum electrodynamics (QED) to make sense of infinite integrals in perturbation theory. Initially viewed as a suspect provisional procedure even by some of its originators, renormalization eventually was embraced as an important and self-consistent actual mechanism of scale physics in several fields of physics and mathematics. Today, the point of view has shifted: on the basis of the breakthrough renormalization group insights of Kenneth Wilson, the focus is on variation of physical quantities across contiguous scales, while distant scales are related to each other through ""effective"" descriptions. All scales are linked in a broadly systematic way, and the actual physics pertinent to each is extracted with the suitable specific computational techniques appropriate for each.