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Coulomb artifacts and bottomonium hyperfine splitting in lattice NRQCD

We study the role of the lattice artifacts associated with the Coulomb binding effects in the analysis of the heavy quarkonium within lattice NRQCD. We find that a “na¨ıve” perturbative matching generates spurious linear Coulomb artifacts, which result in a large systematic error in the lattice predictions for the heavy quarkonium spectrum. This effect is responsible, in ...

One-loop supergravity on AdS4 × S 7/ℤ k and comparison with ABJM theory

The large-N limit of ABJM theory is holographically dual to M-theory on AdS4 × S 7/ℤ k . The 3-sphere partition function has been obtained via localization, and its leading behavior F ABJM (0) ∼ k 1/2 N 3/2 is exactly reproduced in the dual theory by tree-level supergravity. We extend this comparison to the sub-leading \( \mathcal{O}\left({N}^0\right) \) order by computing the ...

Holographic Lifshitz fermions and exponentially suppressed spectral weight

The absence of fixed momentum excitations in a theory with Lifshitz scale invariance gives rise to exponential suppression of spectral weight in the low-frequency limit. In the holographic dual, this suppression arises as a consequence of a tunneling barrier that decouples the horizon from the boundary. We compute the spin-1/2 holographic Green’s function and show that the form of ...

Higher rank ABJM Wilson loops from matrix models

We compute the vacuum expectation values of 1/6 supersymmetric Wilson loops in higher dimensional representations of the gauge group in ABJM theory. We present results for the m-symmetric and m-antisymmetric representations by exploiting standard matrix model techniques. At leading order, in the saddle point approximation, our expressions reproduce holographic results from both D6 ...

Rigid supersymmetric backgrounds of 3-dimensional Newton-Cartan supergravity

Recently, a non-relativistic off-shell formulation of three dimensional Newton-Cartan supergravity was proposed as the c → ∞ limit of three dimensional \( \mathcal{N} \) = 2 super-gravity [1]. In the present paper we study supersymmetric backgrounds within this theory. Using integrability constraints for the non-relativistic Killing spinor equations, we explicitly construct all ...

A holographic c-theorem for Schrödinger spacetimes

We prove a c-theorem for holographic renormalization group flows in a Schrödinger spacetime that demonstrates that the effective radius L(r) monotonically decreases from the UV to the IR, where r is the bulk radial coordinate. This result assumes that the bulk matter satisfies the null energy condition, but holds regardless of the value of the critical exponent z. We also construct ...

Analysis of the exclusive final state npe+e- in the quasi-free np reaction

13 W. Ku¨hn 6 A. Kugler 3 T. Kunz 11 A. Kurepin 7 A. Kurilkin 12 P. Kurilkin 12 V. Ladygin 12 R. Lalik 11 16 K. Lapidus 11 16 A. Lebedev 4 T. Liu 2 L. Lopes 9 M. Lorenz 17 19 T. Mahmoud 6 L. Maier 11 A

Universal features of Lifshitz Green’s functions from holography

We examine the behavior of the retarded Green’s function in theories with Lifshitz scaling symmetry, both through dual gravitational models and a direct field theory approach. In contrast with the case of a relativistic CFT, where the Green’s function is fixed (up to normalization) by symmetry, the generic Lifshitz Green’s function can a priori depend on an arbitrary function \( ...

High-temperature expansion of supersymmetric partition functions

Di Pietro and Komargodski have recently demonstrated a four-dimensional counterpart of Cardy’s formula, which gives the leading high-temperature (β → 0) behavior of supersymmetric partition functions Z SUSY(β). Focusing on superconformal theories, we elaborate on the subleading contributions to their formula when applied to free chiral and U(1) vector multiplets. In particular, we ...

Infection and Cancer Screening in Potential Living Donors: Best Practices to Protect the Donor and Recipient

Twenty-one percent of transplants in the US come from live donors. Data show that live-donor transplantation is a safe practice, but is not completely risk free. Malignancy and infection transmission through live organ donation is extremely rare, but can be a devastating event for the recipient, donor and treatment team if it occurs. The donor evaluation is multifactorial, taking ...

On \( \mathcal{N}=1 \) partition functions without R-symmetry

We examine the dependence of four-dimensional Euclidean \( \mathcal{N}=1 \) partition functions on coupling constants. In particular, we focus on backgrounds without R-symmetry, which arise in the rigid limit of old minimal supergravity. Backgrounds preserving a single supercharge may be classified as having either trivial or SU(2) structure, with the former including S 4. We show ...

Hidden horizons in non-relativistic AdS/CFT

Cynthia Keeler 0 Gino Knodel 0 James T. Liu 0 0 Michigan Center for Theoretical Physics, Randall Laboratory of Physics, The University of Michigan , Ann Arbor, MI 48109-1040, U.S.A We study

c − a from the \( \mathcal{N}=1 \) superconformal index

We present a prescription for obtaining the difference of the central charges, c−a, of a four dimensional superconformal quantum field theory from its single-trace index. The formula is derived from a one-loop holographic computation, but is expected to be valid independent of holography. We demonstrate the prescription with several holographic and non-holographic examples. As an ...

What do non-relativistic CFTs tell us about Lifshitz spacetimes?

Cynthia Keeler 0 Gino Knodel 0 James T. Liu 0 0 Michigan Center for Theoretical Physics, Randall Laboratory of Physics, The University of Michigan , Ann Arbor, MI 48109-1040, U.S.A We study the

Widespread Natural Occurrence of Hydroxyurea in Animals

Here we report the widespread natural occurrence of a known antibiotic and antineoplastic compound, hydroxyurea in animals from many taxonomic groups. Hydroxyurea occurs in all the organisms we have examined including invertebrates (molluscs and crustaceans), fishes from several major groups, amphibians and mammals. The species with highest concentrations was an elasmobranch ...

Small treatise on spin-3/2 fields and their dual spectral functions

In this work we systematically study various aspects of spin-3/2 fields in a curved background. We mostly focus on a minimally coupled massive spin-3/2 field in arbitrary dimensions, and solve the equation of motion either explicitly or numerically in AdS, Schwarzschild-AdS and Reissner-Nordström-AdS backgrounds. Although not the main focus of this work, we also make a connection ...

The shortened KK spectrum of IIB supergravity on Y p,q

Arash Arabi Ardehali 1 James T. Liu 1 Phillip Szepietowski 0 Open Access c The Authors. Article funded by SCOAP 0 Department of Physics, University of Virginia , Box 400714, Charlottesville, VA

1/N 2 corrections to the holographic Weyl anomaly

We compute the \( \mathcal{O} \) (1) contribution to holographic c − a for IIB supergravity on AdS5 × S 5 / \( {{\mathbb{Z}}_n} \) and on AdS5 × T 1,1 / \( {{\mathbb{Z}}_n} \) . In both cases, we find agreement with the dual field theory results, thus providing 1/N 2 checks of AdS/CFT with reduced supersymmetry. Since the holographic computation involves a sum over shortened ...

Resting-State fMRI Activity Predicts Unsupervised Learning and Memory in an Immersive Virtual Reality Environment

Thomas T. Liu 0 Satoru Hayasaka, Wake Forest School of Medicine, United States of America 0 1 Center for Functional Magnetic Resonance Imaging, University of California San Diego, La Jolla, CA, United

Functional chromatin features are associated with structural mutations in cancer

PV , Li Q , Liu T , Liu XS , Ma L , Milosavljevic A , Myers RM , et al: ChIP-seq guidelines and practices of the ENCODE and modENCODE consortia . Genome Res 2012 , 22 ( 9 ): 1813 - 1831 . 31. Liu W