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PHYSICAL REVIEW A 93, 042702 (2016) Pseudopotential for the ...
www.tcm.phy.cam.ac.uk/~gjc29/papers/Whitehead16.pdf24 Aug 2020: 2), which gives. ψ cont0 (r) J0(kr) π. 2[γ ln(ka/2)] Y0(kr), (7). ... 9) of (kR)2/2π , and so describe the scattering correctto O((ka)4). -
PHYSICAL REVIEW A 93, 042702 (2016) Pseudopotential for the ...
www.tcm.phy.cam.ac.uk/~tmw38/Whitehead16a.pdf5 Apr 2016: 2), which gives. ψ cont0 (r) J0(kr) π. 2[γ ln(ka/2)] Y0(kr), (7). ... 9) of (kR)2/2π , and so describe the scattering correctto O((ka)4). -
qcmft
www.tcm.phy.cam.ac.uk/~bds10/tp3/secqu.pdf10 Oct 2012: Ĥ = JN S2 B.Z.Xk! ka†kak O(S0) (2.16). where! k = 2JS(1 cos k) = 4JS sin2(k/2) represents the dispersion relation of the spinexcitations. -
Lecture I 1 Lecture I: Collective Excitations: From Particles ...
www.tcm.phy.cam.ac.uk/~bds10/tp3/lectures.pdf10 Nov 2013: ka†k. )] O(N. 1/20 ). cf. quantum AF in spin-wave approximation. ... 2. (akak a. †ka†k. )]As with quantum AF, Ĥ diagonalised by Bogoluibov transformation:(. -
Chapter 5 Topological Phase Transitions Previously, we have seen ...
www.tcm.phy.cam.ac.uk/~achc2/phase/chap5.pdf25 Jan 2021: The first indication of unusual behaviour in the two-dimensional XY -model (n = 2)appeared in an analysis of the high temperature series expansion by Stanley and Ka-plan (1971). -
Theoretical Physics II
www.tcm.phy.cam.ac.uk/~rjs269/TP2/TP2y2024.pdf22 Jan 2024: Department of PhysicsUniversity of Cambridge. Part II Physics. T H E O R E T I C A L P H Y S I C S I I. T O P I C S I N Q U A N T U M T H E O R Y. R.-J. Slager and G. ChaudharyLent 2024. Contents. 1 Quantum Dynamics 7. 2 Introduction to path -
lectures
www.tcm.phy.cam.ac.uk/~bds10/aqp/lec2_compressed.pdf21 Oct 2009: κa =. {ka tan(ka) evenka cot(ka) odd. κa =. (2ma2V0! 2 (ka)2. ... leads to the condition,. k [An1 cos(ka) Bn1 sin(ka) An] =2maV0! -
Chapter 2 Quantum mechanics in onedimension Following the rules ...
www.tcm.phy.cam.ac.uk/~bds10/aqp/handout_1d.pdf8 Oct 2009: Thefigure (right) compares κa = ( 2mV0a. 2! 2 (ka)2)1/2 with ka tan(ka) for the even. ... Bn1 =2maV0! 2k Bn sin(ka) Bn cos(ka) An sin(ka). Advanced Quantum Physics. -
Chapter 10 From molecules to solids In the previous ...
www.tcm.phy.cam.ac.uk/~bds10/aqp/handout_molecular.pdf9 Nov 2009: Substitution confirms that this is a solution with energies(exercise),. Ek =ε 2t cos(ka)1 S cos(ka). -
Absence of diagonal force constants in cubic Coulomb crystals
www.tcm.phy.cam.ac.uk/~gjc29/papers/AndrewsConduit20.pdf23 Dec 2020: Math. Mech. Solids 13, 199–220. (doi:10.1177/. 1081286507086898)3. Grimvall G, Magyari-Köpe B, Ozoliņš V, Persson KA.
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