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• W3033435892 abstract "We study the $Toverline{T}$ deformation of two dimensional quantum field theories from a Hamiltonian point of view, focusing on aspects of the theory in Lorentzian signature. Our starting point is a simple rewriting of the spatial integral of the $Toverline{T}$ operator, which directly implies the deformed energy spectrum of the theory. Using this rewriting, we then derive flow equations for various quantities in the deformed theory, such as energy eigenstates, operators, and correlation functions. On the plane, we find that the deformation merely has the effect of implementing successive canonical/Bogoliubov transformations along the flow. This leads us to define a class of non-local, 'dressed' operators (including a dressed stress tensor) which satisfy the same commutation relations as in the undeformed theory. This further implies that on the plane, the deformed theory retains its symmetry algebra, including conformal symmetry, if the original theory is a CFT. On the cylinder the $Toverline{T}$ deformation is much more non-trivial, but even so, correlation functions of certain dressed operators are integral transforms of the original ones. Finally, we propose a tensor network interpretation of our results in the context of AdS/CFT." @default.
• W3033435892 created "2020-06-12" @default.
• W3033435892 creator A5000415856 @default.
• W3033435892 creator A5058303011 @default.
• W3033435892 date "2020-06-04" @default.
• W3033435892 modified "2023-09-27" @default.
• W3033435892 title "On the flow of states under $Toverline{T}$" @default.
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• W3033435892 hasPublicationYear "2020" @default.
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