Results 21 to 30 of about 5,511 (164)

Quantum states to brane geometries via fuzzy moduli spaces of giant gravitons

, 2012
Eighth-BPS local operators in N=4 SYM are dual to quantum states arising from the quantization of a moduli space of giant gravitons in AdS5xS5. Earlier results on the quantization of this moduli space give a Hilbert space of multiple harmonic oscillators
Pasukonis, Jurgis, Ramgoolam, Sanjaye
core   +1 more source

Time-delay matrix, midgap spectral peak, and thermopower of an Andreev billiard [PDF]

, 2014
We derive the statistics of the time-delay matrix (energy derivative of the scattering matrix) in an ensemble of superconducting quantum dots with chaotic scattering (Andreev billiards), coupled ballistically to $M$ conducting modes (electron-hole modes ...
Beenakker, C. W. J., Brouwer, P. W., Marciani, M.   +2 more
core   +3 more sources

On Non-Abelian Symplectic Cutting

, 2012
We discuss symplectic cutting for Hamiltonian actions of non-Abelian compact groups. By using a degeneration based on the Vinberg monoid we give, in good cases, a global quotient description of a surgery construction introduced by Woodward and Meinrenken,
A-M Li, AS Dancer, B Fantechi, BC Hall, C Woodward, C Woodward, C-M Marle, D Edidin, DA Cox, E Lerman, E Lerman, E Lerman, E Lerman, E Meinrenken, F Kirwan, F Knop, IV Losev, J Hilgert, J Martens, J Weitsman, Johan Martens, LA Borisov, M Thaddeus, Michael Thaddeus, P-É Paradan, R Sjamaar, RE Gompf, S Tolman, T Delzant, T Hausel, T Hausel, V Alexeev, V Guillemin, V Guillemin   +33 more
core   +1 more source

Bulk Fields and Supersymmetry in a Slice of AdS [PDF]

, 2000
Five-dimensional models where the bulk is a slice of AdS have the virtue of solving the hierarchy problem. The electroweak scale is generated by a ``warp'' factor of the induced metric on the brane where the standard model fields live. However, it is not
Alex Pomarol, Antoniadis, Antoniadis, Antoniadis, Arkani-Hamed, Arkani-Hamed, Bajc, Behrndt, Benakli, Brandhuber, Brignole, Carone, Casalbuoni, Chacko, Chang, Cornet, Cvetic, Davoudiasl, Delgado, Delgado, Deser, Dienes, Dvali, Gherghetta, Goldberger, Grojean, Grossman, Ibanez, Kallosh, Kaplan, Kehagias, Lukas, Lykken, Marciano, Masip, Mirabelli, Mirabelli, Nath, Pomarol, Pomarol, Randall, Rizzo, Schmaltz, Shuster, Strumia, Tony Gherghetta, Townsend, Verlinde, Witten, Youm   +49 more
core   +5 more sources

Geometry of Gaussian quantum states

, 2015
We study the Hilbert-Schmidt measure on the manifold of mixed Gaussian states in multi mode continuous variable quantum systems. An analytical expression for the Hilbert-Schmidt volume element is derived. Its corresponding probability measure can be used
Link, Valentin, Strunz, Walter T.
core   +1 more source

Symplectic invariants, Virasoro constraints and Givental decomposition [PDF]

, 2008
Following the works of Alexandrov, Mironov and Morozov, we show that the symplectic invariants of \cite{EOinvariants} built from a given spectral curve satisfy a set of Virasoro constraints associated to each pole of the differential form $ydx$ and each ...
Orantin, N.
core   +1 more source

Local phase space and edge modes for diffeomorphism-invariant theories

, 2017
We discuss an approach to characterizing local degrees of freedom of a subregion in diffeomorphism-invariant theories using the extended phase space of Donnelly and Freidel, [JHEP 2016 (2016) 102].
Speranza, Antony J.
core   +1 more source

The Real Symplectic Groups in Quantum Mechanics and Optics [PDF]

, 1995
text of abstract (We present a utilitarian review of the family of matrix groups $Sp(2n,\Re)$, in a form suited to various applications both in optics and quantum mechanics.
A Weil, Arvind, Arvind, Arvind, , B Dutta, B Dutta, B G Wybourne, Bialynicki-Birula, C L Siegel, D F Walls, E P Wigner, F J Dyson, G Lion, G Racah, G. Racah, H Weyl, J R Klauder, J Williamson, K B Wolf, M Nazarathy, N Mukunda, N Mukunda, O N Stavroudis, R Abraham, R Gilmore, R Gilmore, R Ranga Rao, R Simon, R Simon, R Simon, R Simon, R Simon, R Simon, S Helgason, T F Jordan, V I Arnold, W Schleich   +36 more
core   +2 more sources

Metaplectic operators with quasi‐diagonal kernels

Mathematische Nachrichten, EarlyView.
Abstract Metaplectic operators form a relevant class of operators appearing in different applications, in this work we study their Schwartz kernels. Namely, diagonality of a kernel is defined by imposing rapid off‐diagonal decay conditions, and quasi‐diagonality by imposing the same conditions on the smoothing of the kernel through convolution with the
Gianluca Giacchi, Luigi Rodino
wiley   +1 more source

An operational measure for squeezing

, 2016
We propose and analyse a mathematical measure for the amount of squeezing contained in a continuous variable quantum state. We show that the proposed measure operationally quantifies the minimal amount of squeezing needed to prepare a given quantum state
Idel, Martin, Lercher, Daniel, Wolf, Michael M.   +2 more
core   +1 more source