122 papers found.

Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 \( ...

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 ...

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 ...

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 ...

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

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 ...

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 ...

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

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 ...

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

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

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 ...

Genome-wide functional analyses require high-resolution genome assembly and annotation. We applied ChIA-PET to analyze gene regulatory networks, including 3D chromosome interactions, underlying thyroid hormone (TH) signaling in the frog Xenopus tropicalis. As the available versions of Xenopus tropicalis assembly and annotation lacked the resolution required for ChIA-PET we improve ...

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