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Volumn 81, Issue 6, 2010, Pages

Quantum critical scaling of fidelity susceptibility

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EID: 77954822825     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.064418     Document Type: Article
Times cited : (269)

References (41)
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    • In practice, the maximum expansion order n is obviously finite. However, it is adjusted during the simulations so to ensure that the method is exact, in the stochastic sense. See Ref.
    • In practice, the maximum expansion order n is obviously finite. However, it is adjusted during the simulations so to ensure that the method is exact, in the stochastic sense. See Ref.
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    • The processes labeled as "switch-and-reverse" and "switch-and-continue" in Ref. are always allowed in the convention for the TIM adopted here [Eq. ]. See Ref. for details.
    • The processes labeled as "switch-and-reverse" and "switch-and-continue" in Ref. are always allowed in the convention for the TIM adopted here [Eq.]. See Ref. for details.
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    • In general, different bipartition choices do not lead to the same results for the generalizations to finite temperatures χF (g,β ) or d s2 (g,β ). Indeed, while the "quantum" parts in Eqs. are identical (up to a factor of g2) whether we consider H0 or g H1 as the "driving term," this is not the case for the "classical" contribution [Eq. ], indicating that there is no simple relationship between χF H0 (β) and χF g H1 (β) at finite β. However, at low enough temperature, the classical contribution becomes negligible and we recover χF H0 (β→∞ ) = g2 χF g H1 (β→∞ ), as shown in Fig. f3.
    • In general, different bipartition choices do not lead to the same results for the generalizations to finite temperatures χ F (g, β) or d s 2 (g, β). Indeed, while the "quantum" parts in Eqs. are identical (up to a factor of g 2) whether we consider H 0 or g H 1 as the "driving term," this is not the case for the "classical" contribution [Eq.], indicating that there is no simple relationship between χ F H 0 (β) and χ F g H 1 (β) at finite β. However, at low enough temperature, the classical contribution becomes negligible and we recover χ F H 0 (β → ∞) = g 2 χ F g H 1 (β → ∞), as shown in Fig.f3.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.