For a U(1)-charged scalar, the Euclidean bounce for vacuum decay loses O(4) symmetry at finite charge, lowers the barrier and increases the rate, while charge rearrangement imposes a subluminal terminal velocity on the expanding bubble.
Identifying a first-order phase transition in neutron star mergers through gravitational waves
10 Pith papers cite this work. Polarity classification is still indexing.
10
Pith papers citing it
abstract
We identify an observable imprint of a first-order hadron-quark phase transition at supranuclear densities on the gravitational-wave (GW) emission of neutron star mergers. Specifically, we show that the dominant postmerger GW frequency f_peak may exhibit a significant deviation from an empirical relation between f_peak and the tidal deformability if a strong first-order phase transition leads to the formation of a gravitationally stable extended quark matter core in the postmerger remnant. A comparison of the GW signatures from a large, representative sample of microphysical, purely hadronic equations of state indicates that this imprint is only observed in those systems which undergo a strong first-order phase transition. Such a shift of the dominant postmerger GW frequency can be revealed by future GW observations, which would provide evidence for the existence of a strong first-order phase transition in the interior of neutron stars.
representative citing papers
A first-principles Euclidean prescription for tunnelling rates out of Noether-charged states, including cases with non-trivial energy.
Photon counting readout detects weak postmerger gravitational wave signals at a rate of about 1 in 100 for SNR 0.2 and yields a twofold improvement in neutron star radius measurement after 20,000 events.
Differential rotation in hybrid stars with deconfinement phase transition allows quasi-toroidal configurations with quark matter rings and leads to degeneracies in rotational profiles at mass-radius curve intersections.
A constrained evolutionary pipeline identifies over 14,000 causal EoS reconciling GW170817 and GW190814 with non-monotonic sound speeds, M_max 2.3-2.8 solar masses, and R_1.4 around 12 km.
Neutrino light curves from neutron stars may show an enhanced peak-to-plateau ratio, a density-tracing delay, and transient spectral hardening as diagnostics of hadron-quark phase transitions on 10-50 ms timescales.
An extended PNJL model locates the QCD critical end point and predicts that proto-neutron stars contain hyperons and Delta-isobars but no deconfined quarks, which appear only in cold neutron stars.
Comparative numerical study of radial modes in strange quark stars using CFL, interacting, and linear causal EOS shows all satisfy current mass-radius bounds and produce 4-7 kHz fundamental frequencies.
The paper evaluates how triangular versus two-L-shaped geometries, arm lengths, and presence of low-frequency instruments affect the science reach of the Einstein Telescope for compact binaries, multi-messenger events, and stochastic backgrounds.
A unified QCD equation of state is advocated for neutron star mergers and heavy ion collisions so that gravitational wave signals and lab flow/fluctuation data can jointly constrain the phase structure of dense matter.
citing papers explorer
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Globally Charged Vacuum Decay
For a U(1)-charged scalar, the Euclidean bounce for vacuum decay loses O(4) symmetry at finite charge, lowers the barrier and increases the rate, while charge rearrangement imposes a subluminal terminal velocity on the expanding bubble.
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On quantum tunnelling in the presence of Noether charges
A first-principles Euclidean prescription for tunnelling rates out of Noether-charged states, including cases with non-trivial energy.
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Hybrid Stars with Post-Merger Rotation Profiles
Differential rotation in hybrid stars with deconfinement phase transition allows quasi-toroidal configurations with quark matter rings and leads to degeneracies in rotational profiles at mass-radius curve intersections.
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Reconciling GW170817 and GW190814 with a Nonmonotonic Sound-Speed Equation of State
A constrained evolutionary pipeline identifies over 14,000 causal EoS reconciling GW170817 and GW190814 with non-monotonic sound speeds, M_max 2.3-2.8 solar masses, and R_1.4 around 12 km.
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Neutrino diagnostics of hadron-quark phase transition in Neutron Stars
Neutrino light curves from neutron stars may show an enhanced peak-to-plateau ratio, a density-tracing delay, and transient spectral hardening as diagnostics of hadron-quark phase transitions on 10-50 ms timescales.
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Hot quark matter and (proto-) neutron stars
An extended PNJL model locates the QCD critical end point and predicts that proto-neutron stars contain hyperons and Delta-isobars but no deconfined quarks, which appear only in cold neutron stars.
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Radial oscillations of quark stars in light of current astrophysical constraints: A comparative study
Comparative numerical study of radial modes in strange quark stars using CFL, interacting, and linear causal EOS shows all satisfy current mass-radius bounds and produce 4-7 kHz fundamental frequencies.
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Science with the Einstein Telescope: a comparison of different designs
The paper evaluates how triangular versus two-L-shaped geometries, arm lengths, and presence of low-frequency instruments affect the science reach of the Einstein Telescope for compact binaries, multi-messenger events, and stochastic backgrounds.
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Matter And Gravitation In Collisions of heavy ions and neutron stars: equation of state
A unified QCD equation of state is advocated for neutron star mergers and heavy ion collisions so that gravitational wave signals and lab flow/fluctuation data can jointly constrain the phase structure of dense matter.