Results 31 to 40 of about 9,798,156 (315)
Cosmic strings in hidden sectors: 2. Cosmological and astrophysical signatures [PDF]
, 2014 : Cosmic strings can arise in hidden sector models with a spontaneously broken Abelian symmetry group. We have studied the couplings of the Standard Model fields to these so-called dark strings in the companion paper.
A. J. Long, T. Vachaspati
core +3 more sources
Deriving the long-string CFT in AdS3
Journal of High Energy PhysicsWe revisit the path integral formulation of bosonic string theory in locally-AdS3 spacetimes. Through a careful analysis of the worldsheet sigma model, we write down an effective theory of long strings living near the boundary of AdS3.
Bob Knighton
doaj +3 more sources
Controlling long ion strings for quantum simulation and precision measurements [PDF]
Physical Review A, 2021 Scaling a trapped-ion based quantum simulator to a large number of ions creates a fully-controllable quantum system that becomes inaccessible to numerical methods.
F. Kranzl +6 more
semanticscholar +1 more source
Scalable and parallel tweezer gates for quantum computing with long ion strings [PDF]
Quantum Computing, Communication, and Simulation, 2020 Trapped-ion quantum computers have demonstrated high-performance gate operations in registers of about ten qubits. However, scaling up and parallelizing quantum computations with long one-dimensional (1D) ion strings is an outstanding challenge due to ...
Tobias Olsacher +5 more
semanticscholar +1 more source
The scattering amplitude of stringy hadrons: strings with opposite charges on their endpoints
Journal of High Energy Physics, 2020 In this note we describe hadrons: mesons and baryons as strings with electric charges on their endpoints. We consider here only the neutral system with opposite charges, coupled to an external constant electromagnetic field.
Jacob Sonnenschein +2 more
doaj +1 more source
Mass and spin for classical strings in dS3
Journal of High Energy Physics, 2021 We demonstrate that all rigidly rotating strings with center of mass at the origin of the dS3 static patch satisfy the Higuchi bound. This extends the observation of Noumi et al.
Klaas Parmentier
doaj +1 more source
Electromagnetically-induced-transparency ground-state cooling of long ion strings [PDF]
, 2016 Electromagnetically-induced-transparency (EIT) cooling is a ground-state cooling technique for trapped particles. EIT offers a broader cooling range in frequency space compared to more established methods.
R. Lechner +8 more
semanticscholar +2 more sources
Holographic duals of long open strings [PDF]
Physical Review D, 2008 We study the holographic map between long open strings, which stretch between D-branes separated in the bulk space-time, and operators in the dual boundary theory. We focus on a generalization of the Sakai-Sugimoto holographic model of QCD, where the simplest chiral condensate involves an operator of this type.
Aharony, Ofer, Kutasov, David
openaire +2 more sources
On the quantization of folded strings in non-critical dimensions
Journal of High Energy Physics, 2020 Classical rotating closed string are folded strings. At the folding points the scalar curvature associated with the induced metric diverges. As a consequence one cannot properly quantize the fluctuations around the classical solution since there is no ...
Jacob Sonnenschein, Dorin Weissman
doaj +1 more source
Stochastic gravitational-wave background from metastable cosmic strings [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 A metastable cosmic-string network is a generic consequence of many grand unified theories (GUTs) when combined with cosmic inflation. Metastable cosmic strings are not topologically stable, but decay on cosmic time scales due to pair production of GUT ...
W. Buchmüller, V. Domcke, K. Schmitz
semanticscholar +1 more source