Functional integral in supersymmetric quantum mechanics

1990 ◽  
Vol 20 (4) ◽  
pp. 309-312 ◽  
Author(s):  
D. V. Ktitarev
Keyword(s):  
Quantum Mechanics ◽  
Functional Integral ◽  
Supersymmetric Quantum Mechanics

scholarly journals FUNCTIONAL INTEGRAL REPRESENTATIONS AND GOLDEN–THOMPSON INEQUALITIES IN BOSON–FERMION SYSTEMS

2013 ◽  
Vol 25 (08) ◽  
pp. 1350015
Author(s):  
ASAO ARAI
Keyword(s):  
Quantum Mechanics ◽  
Integral Representation ◽  
Fock Space ◽  
Type Inequality ◽  
Functional Integral ◽  
Integral Representations ◽  
Supersymmetric Quantum Mechanics ◽  
Fermion Systems ◽  
Witten Index ◽  
Functional Integral Representation

For a general class of boson–fermion Hamiltonians H acting in the tensor product Hilbert space L2(ℝn) ⊗ ∧(ℂr) of L2(ℝn) and the fermion Fock space ∧(ℂr) over ℂr(n, r ∈ ℕ), we establish, in terms of an n-dimensional conditional oscillator measure, a functional integral representation for the trace Tr (F ⊗ zN f e-tH)(F ∈ L∞(ℝn), z ∈ ℂ∖{0}, t > 0), where N f is the fermion number operator on ∧(ℂr). We prove a Golden–Thompson type inequality for | Tr (F ⊗ zN f e-tH)|. Also we discuss applications to a model in supersymmetric quantum mechanics and present an improved version of the Golden–Thompson inequality in supersymmetric quantum mechanics given by Klimek and Lesniewski ([Lett. Math. Phys.21 (1991) 237–244]). An upper bound for the number of the supersymmetric states is given as well as a sufficient condition for the spontaneous supersymmetry breaking. Moreover, we derive a functional integral representation for the analytical index of a Dirac type operator on ℝn (Witten index) associated with the supersymmetric quantum mechanical model.

scholarly journals QUANTUM MECHANICS OVER A q-DEFORMED (0 + 1)-DIMENSIONAL SUPERSPACE

1998 ◽  
Vol 13 (24) ◽  
pp. 4173-4182 ◽  
Author(s):  
H. MONTANI ◽  
R. TRINCHERO
Keyword(s):  
Quantum Mechanics ◽  
Mass Term ◽  
Functional Integral ◽  
Supersymmetric Quantum Mechanics ◽  
Fermion Field ◽  
Functional Integrals ◽  
Explicit Realization ◽  
Representation Spaces

We built up an explicit realization of (0 + 1)-dimensional q-deformed superspace coordinates as operators on standard superspace. A q-generalization of supersymmetric transformations is obtained, enabling us to introduce scalar superfields and a q-supersymmetric action. We consider a functional integral based on this action. Integration is implemented, at the level of the coordinates and at the level of the fields, as traces over the corresponding representation spaces. Evaluation of these traces leads us to standard functional integrals. The generation of a mass term for the fermion field leads, at this level, to an explicitly broken version of supersymmetric quantum mechanics.

scholarly journals ABCD of ’t Hooft operators

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Hirotaka Hayashi ◽  
Takuya Okuda ◽  
Yutaka Yoshida
Keyword(s):  
Quantum Mechanics ◽  
Gauge Theories ◽  
Supersymmetric Quantum Mechanics ◽  
Type Ii ◽  
Expectation Values ◽  
String Theories

Abstract We compute by supersymmetric localization the expectation values of half-BPS ’t Hooft line operators in $$ \mathcal{N} $$ N = 2 U(N ), SO(N ) and USp(N ) gauge theories on S1 × ℝ3 with an Ω-deformation. We evaluate the non-perturbative contributions due to monopole screening by calculating the supersymmetric indices of the corresponding supersymmetric quantum mechanics, which we obtain by realizing the gauge theories and the ’t Hooft operators using branes and orientifolds in type II string theories.

scholarly journals Local G2-manifolds, Higgs bundles and a colored quantum mechanics

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Max Hübner
Keyword(s):  
Quantum Mechanics ◽  
Gauge Theories ◽  
Supersymmetric Quantum Mechanics ◽  
Higgs Bundle ◽  
Higgs Bundles ◽  
View Point ◽  
Yang Mills ◽  
G2 Manifolds ◽  
Supersymmetric Gauge ◽  
M Theory

Abstract M-theory on local G2-manifolds engineers 4d minimally supersymmetric gauge theories. We consider ALE-fibered G2-manifolds and study the 4d physics from the view point of a partially twisted 7d supersymmetric Yang-Mills theory and its Higgs bundle. Euclidean M2-brane instantons descend to non-perturbative effects of the 7d supersymmetric Yang-Mills theory, which are found to be in one to one correspondence with the instantons of a colored supersymmetric quantum mechanics. We compute the contributions of M2-brane instantons to the 4d superpotential in the effective 7d description via localization in the colored quantum mechanics. Further we consider non-split Higgs bundles and analyze their 4d spectrum.

scholarly journals Wronskian differential formula for confluent supersymmetric quantum mechanics

2012 ◽  
Vol 376 (5) ◽  
pp. 692-696 ◽  
Author(s):  
David Bermudez ◽  
David J. Fernández C. ◽  
Nicolás Fernández-García
Keyword(s):  
Quantum Mechanics ◽  
Supersymmetric Quantum Mechanics

A Golden-Thompson inequality in supersymmetric quantum mechanics

1991 ◽  
Vol 21 (3) ◽  
pp. 237-244 ◽  
Author(s):  
Slawomir Klimek ◽  
Andrzej Lesniewski
Keyword(s):  
Quantum Mechanics ◽  
Supersymmetric Quantum Mechanics
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