Pion string evolving in a thermal bath

Liu, Fan; Chen, Qichang; Mao, Hong

doi:10.1103/physrevd.92.085036

Cited by 6 publications

(15 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A 4th-order classical theory, intended for use as such, was studied by Ruzmaikina and Ruzmaikin [13] for application to cosmology. More recently, a thorough study of 4th order gravity by Lu et al [14,19], which we shall rely on heavily, was enabled by the advent of algebraic calculation tools like Mathematica. Though Lu et al stated that the principal intended application was to compute quantum corrections, their main result is a compendium of classical, spherically symmetric, time-independent solutions.…”

Section: B Classical Higher-derivative Gravitymentioning

confidence: 99%

“…For pure gravity, the most general 4th order extension of Einsteinian general relativity [14] is given by a Lagrangian density of the form…”

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

“…We have solved for the metric (11) in terms of A(r) and B(r), in series expansions, following the method of Lu et al [14]:…”

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

“…There are indeed wormhole solutions with A(r) = ∞ at the horizon r = r o , as with a Schwarzchild black hole, but B(r o ) = 0, unlike a black hole in ordinary gravity or in 4th order gravity [19]. Such traversable wormholes were studied by Lu et al [14] in the restricted case β = 0. Here, β = 0 is needed so that there are non-trivial solutions to (15) with α = 0 and different from ordinary gravity.…”

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

“…Here, β = 0 is needed so that there are non-trivial solutions to (15) with α = 0 and different from ordinary gravity. The 4th order theory admits traversable wormhole solutions, as in [14], but with more free parameters than for the β = 0 case. Quantum tunneling is thus accounted for classically.…”

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

See 4 more Smart Citations

Tunneling through bridges: Bohmian non-locality from higher-derivative gravity

Duane

2019

Physics Letters A

View full text Add to dashboard Cite

A classical origin for the Bohmian quantum potential, as that potential term arises in the quantum mechanical treatment of black holes and Einstein-Rosen (ER) bridges, can be based on 4thorder extensions of Einstein's equations. The required 4th-order extension of general relativity is given by adding quadratic curvature terms with coefficients that maintain a fixed ratio, as their magnitudes approach zero, with classical general relativity as a singular limit. If entangled particles are connected by a Planck-width ER bridge, as conjectured by Maldacena and Susskind, then a connection by a traversable Planck-scale wormhole, allowed in 4th-order gravity, describes such entanglement in the ontological interpretation. It is hypothesized that higher-derivative gravity can account for the nonlocal part of the quantum potential generally.

show abstract

Section: B Classical Higher-derivative Gravitymentioning

confidence: 99%

“…For pure gravity, the most general 4th order extension of Einsteinian general relativity [14] is given by a Lagrangian density of the form…”

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

“…We have solved for the metric (11) in terms of A(r) and B(r), in series expansions, following the method of Lu et al [14]:…”

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

Section: Equivalent Of the Quantum Potential In 4th Order Grav-itymentioning

confidence: 99%

See 3 more Smart Citations

Tunneling through bridges: Bohmian non-locality from higher-derivative gravity

Duane

2019

Physics Letters A

View full text Add to dashboard Cite

show abstract

The WAGASCI detector as an off-axis near detector of the T2K and Hyper-Kamiokande experiments

Quilain¹,

Minamino

2017

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In the search for CP violation at the T2K and future Hyper-Kamiokande experiments, it is crucial to reduce the present systematic uncertainties. The current T2K near detector, ND280, reduces the uncertainties coming from the neutrino beam and crosssection models from 11.9% to 5.4% in the νe appearance channel. These residual uncertainties mostly come from intrinsic limitations of ND280 due to its difference in target material and angular acceptance with the far detector. In order to show evidence (subsequently observation) of the CP violation in the T2K phase-II and Hyper-Kamiokande experiments, this paper proposes an upgrade of the ND280 detector. It uses a 3D grid scintillator structure surrounded by Time Projecting Chambers in order to reconstruct particles with ∼ 4π acceptance.

show abstract

Linear response theory for symmetry improved two particle irreducible effective actions

Brown¹,

Whittingham²,

Kosov³

2016

Phys. Rev. D

View full text Add to dashboard Cite

We investigate the linear response of an O (N ) scalar quantum field theory subject to external perturbations using the symmetry improved two particle irreducible effective action (SI-2PIEA) formalism [A. Pilaftsis and D. Teresi, Nucl. Phys. B874, 594 (2013)]. Despite satisfactory equilibrium behavior, we find a number of unphysical effects at the linear response level. Goldstone boson field fluctuations are over-determined, with the only consistent solution being to set the fluctuations and their driving sources to zero, except for momentum modes where the Higgs and Goldstone selfenergies obey a particular relationship. Also Higgs field fluctuations propagate masslessly, despite the Higgs propagator having the correct mass. These pathologies are independent of any truncation of the effective action and still exist even if we relax the over-determining Ward identities, so long as the constraint is formulated O (N )-covariantly. We discuss possible reasons for the apparent incompatibility of the constraints and linear response approximation and possible ways forward.

show abstract

Pion string evolving in a thermal bath

Cited by 6 publications

References 74 publications

Tunneling through bridges: Bohmian non-locality from higher-derivative gravity

Tunneling through bridges: Bohmian non-locality from higher-derivative gravity

The WAGASCI detector as an off-axis near detector of the T2K and Hyper-Kamiokande experiments

Linear response theory for symmetry improved two particle irreducible effective actions

Contact Info

Product

Resources

About