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  • 1.
    Bzowski, Adam
    et al.
    CEA Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette, France..
    Guica, Monica
    KTH. CEA Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette, France.;Uppsala Univ, Dept Phys & Astron, Lagerhyddsvagen 1, S-75108 Uppsala, Sweden.; Stockholm Univ, NORDITA, Roslagstullsbacken 23, S-10691 Stockholm, Sweden.
    The holographic interpretation of J(T)over-bar-deformed CFTs2019In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 1, article id 198Article in journal (Refereed)
    Abstract [en]

    Recently, a non-local yet possibly UV-complete quantum field theory has been constructed by deforming a two-dimensional CFT by the composite operator JT, where J is a chiral U(1) current and T is a component of the stress tensor. Assuming the original CFT was a holographic CFT, we work out the holographic dual of its JT deformation. We find that the dual spacetime is still AdS(3), but with modified boundary conditions that mix the metric and the Chern-Simons gauge field dual to the U(1) current. We show that when the coefficient of the chiral anomaly for J vanishes, the energy and thermodynamics of black holes obeying these modified boundary conditions precisely reproduce the previously derived field theory spectrum and thermodynamics. Our proposed holographic dictionary can also reproduce the field-theoretical spectrum in presence of the chiral anomaly, upon a certain assumption that we justify. The asymptotic symmetry group associated to these boundary conditions consists of two copies of the Virasoro and one copy of the U(1) Ka-Moody algebra, just as before the deformation; the only effect of the latter is to modify the spacetime dependence of the right-moving Virasoro generators, whose action becomes state-dependent and effectively non-local.

  • 2.
    Guica, Monica
    et al.
    KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Stockholm University; Uppsala University, Sweden.
    Jafferis, Daniel
    On the construction of charged operators inside an eternal black hole2017In: SCIPOST PHYSICS, ISSN 2542-4653, Vol. 3, no 2, article id UNSP 016Article in journal (Refereed)
    Abstract [en]

    We revisit the holographic construction of (approximately) local bulk operators inside an eternal AdS black hole in terms of operators in the boundary CFTs. If the bulk operator carries charge, the construction must involve a qualitatively new object: a Wilson line that stretches between the two boundaries of the eternal black hole. This operator more precisely, its zero mode -cannot be expressed in terms of the boundary currents and only exists in entangled states dual to two-sided geometries, which suggests that it is a state-dependent operator. We determine the action of the Wilson line on the relevant subspaces of the total Hilbert space, and show that it behaves as a local operator from the point of view of either CFT. For the case of three bulk dimensions, we give explicit expressions for the charged bulk field and the Wilson line. Furthermore, we show that when acting on the thermofield double state, the Wilson line may be extracted from a limit of certain standard CFT operator expressions. We also comment on the relationship between the Wilson line and previously discussed mirror operators in the eternal black hole.

  • 3.
    Guica, Monica
    et al.
    KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. CEA Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette, France.;Stockholm Univ, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.;Uppsala Univ, Dept Phys & Astron, SE-75108 Uppsala, Sweden..
    Maslyuk, Fedor Levkovich
    Stockholm Univ, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.;KTH Royal Inst Technol, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden..
    Zarembo, Konstantin
    KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Stockholm Univ, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden..;Uppsala Univ, Dept Phys & Astron, SE-75108 Uppsala, Sweden..
    Integrability in dipole-deformed N=4 super Yang-Mills2017In: Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, E-ISSN 1751-8121, Vol. 50, no 39, article id 394001Article in journal (Refereed)
    Abstract [en]

    We study the null dipole deformation of N = 4 super Yang-Mills theory, which is an example of a potentially solvable 'dipole CFT': a theory that is non-local along a null direction, has non-relativistic conformal invariance along the remaining ones, and is holographically dual to a Schrodinger space-time. We initiate the field-theoretical study of the spectrum in this model by using integrability inherited from the parent theory. The dipole deformation corresponds to a nondiagonal Drinfeld-Reshetikhin twist in the spin chain picture, which renders the traditional Bethe ansatz inapplicable from the very beginning. We use instead the Baxter equation supplemented with nontrivial asymptotics, which gives the full 1-loop spectrum in the sl(2) sector. We show that anomalous dimensions of long gauge theory operators perfectly match the string theory prediction, providing a quantitative test of Schrodinger holography.

  • 4.
    Guica, Monica
    et al.
    KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Uppsala University, Uppsala.
    Ross, Simon F.
    Behind the geon horizon2015In: Classical and quantum gravity, ISSN 0264-9381, E-ISSN 1361-6382, Vol. 32, no 5, article id 055014Article in journal (Refereed)
    Abstract [en]

    We explore the Papadodimas-Raju prescription for reconstructing the region behind the horizon of one-sided black holes in AdS/CFT in the case of the. P2 geon-a simple, analytic example of a single-sided, asymptotically AdS(3) black hole, which corresponds to a pure CFT state that thermalizes at late times. We show that in this specific example, the mirror operators involved in the reconstruction of the interior have a particularly simple form: the mirror of a single trace operator at late times is just the corresponding single trace operator at early times. We use some explicit examples to explore how changes in the state modify the geometry inside the horizon.

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