Results 41 to 50 of about 725,337 (288)
A note on the S-matrix bootstrap for the 2d O(N) bosonic model
Journal of High Energy Physics, 2018 In this work we apply the S-matrix bootstrap maximization program to the 2d bosonic O(N) integrable model which has N species of scalar particles of mass m and no bound states.
Yifei He +2 more
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Logarithmic negativity in quantum Lifshitz theories
Journal of High Energy Physics, 2020 We investigate quantum entanglement in a non-relativistic critical system by calculating the logarithmic negativity of a class of mixed states in the quantum Lifshitz model in one and two spatial dimensions.
J. Angel-Ramelli +3 more
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BPS property and its breaking in 1+1 dimensions [PDF]
Physical Review D, 2018 We show that the BPS property is a generic feature of field theories in (1+1) dimensions, which does not put any restriction on the action. Here, by BPS solutions we understand static solutions which i) obey a lower-order Bogomolny-type equation in ...
C. Adam, A. Wereszczyński
semanticscholar +1 more source
Signature reversal invariance [PDF]
, 2006 We consider the signature reversing transformation of the metric tensor g_ab goes to -g_ab induced by the chiral transformation of the curved space gamma matrices gamma_a goes to gamma gamma_a in spacetimes with signature (S,T), which also induces a (-1)^
Duff, M. J., Kalkkinen, Jussi
core +5 more sources
Universal bounds on operator dimensions from the average null energy condition [PDF]
Journal of High Energy Physics, 2017 We show that the average null energy condition implies novel lower bounds on the scaling dimensions of highly-chiral primary operators in four-dimensional conformal field theories.
Clay Córdova, Kenan Diab
semanticscholar +1 more source
Off-shell CHY amplitudes and Feynman graphs
Journal of High Energy Physics, 2020 A polynomial form is established for the off-shell CHY scattering equations proposed by Lam and Yao. Re-expressing this in terms of independent Mandelstam invariants provides a new expression for the polynomial scattering equations, immediately valid off
Louise Dolan, Peter Goddard
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Entanglement of harmonic systems in squeezed states
Journal of High Energy Physics, 2023 The entanglement entropy of a free scalar field in its ground state is dominated by an area law term. It is noteworthy, however, that the study of entanglement in scalar field theory has not advanced far beyond the ground state.
D. Katsinis, G. Pastras, N. Tetradis
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Entanglement dynamics after a quench in Ising field theory: a branch point twist field approach
Journal of High Energy Physics, 2019 We extend the branch point twist field approach for the calculation of entanglement entropies to time-dependent problems in 1+1-dimensional massive quantum field theories.
Olalla A. Castro-Alvaredo +3 more
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Journal of High Energy Physics, 2019 In this paper we study the increment of the entanglement entropy and of the (replica) logarithmic negativity in a zero-density excited state of a free massive bosonic theory, compared to the ground state.
Olalla A. Castro-Alvaredo +3 more
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One-loop CHY-integrand of bi-adjoint scalar theory
Journal of High Energy Physics, 2020 In this paper, the one-loop CHY-integrands of bi-adjoint scalar theory has been reinvestigated. Differing from previous constructions, we have explicitly removed contributions from tadpole and massless bubbles when taking the forward limit of ...
Bo Feng, Chang Hu
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