| Records |
| Author |
Sanchis-Gual, N.; del Rio, A. |
| Title |
Precessing binary black holes as engines of electromagnetic helicity |
Type |
Journal Article |
| Year |
2023 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
| Volume |
108 |
Issue |
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Pages |
044052 - 11pp |
| Keywords |
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Abstract  |
We show that binary black hole mergers with precessing evolution can potentially excite photons from the quantum vacuum in such a way that total helicity is not preserved in the process. Helicity violation is allowed by quantum fluctuations that spoil the electric-magnetic duality symmetry of the classical Maxwell theory without charges. We show here that precessing binary black hole systems in astrophysics generate a flux of circularly polarized gravitational waves which, in turn, provides the required helical background that triggers this quantum effect. Solving the fully nonlinear Einstein’s equations with numerical relativity we explore the parameter space of binary systems and extract the detailed dependence of the quantum effect with the spins of the two black holes. We also introduce a set of diagrammatic techniques that allows us to predict when a binary black hole merger can or cannot emit circularly polarized gravitational radiation, based on mirror-symmetry considerations. This framework allows to understand and to interpret correctly the numerical results, and to predict the outcomes in potentially interesting astrophysical systems. |
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Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
6092 |
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| Author |
Peinado, E.; Reig, M.; Srivastava, R.; Valle, J.W.F. |
| Title |
Dirac neutrinos from Peccei-Quinn symmetry: A fresh look at the axion |
Type |
Journal Article |
| Year |
2020 |
Publication |
Modern Physics Letters A |
Abbreviated Journal |
Mod. Phys. Lett. A |
| Volume |
35 |
Issue |
21 |
Pages |
2050176 - 9pp |
| Keywords |
Peccei-Quinn symmetry; axion; neutrinos |
| Abstract |
We show that a very simple solution to the strong CP problem naturally leads to Dirac neutrinos. Small effective neutrino masses emerge from a type-I Dirac seesaw mechanism. Neutrino mass limits probe the axion parameters in regions currently inaccessible to conventional searches. |
| Address |
[Peinado, Eduardo] Univ Nacl Autonoma Mexico, Inst Fis, AP 20-364, Ciudad De Mexico 01000, Mexico, Email: epeinado@fisica.unam.mx; |
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| Publisher |
World Scientific Publ Co Pte Ltd |
Place of Publication |
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| Language |
English |
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Edition |
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| ISSN |
0217-7323 |
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Conference |
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| Notes |
WOS:000550796000006 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
4467 |
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| Author |
Baamara, Y.; Gessner, M.; Sinatra, A. |
| Title |
Quantum-enhanced multiparameter estimation and compressed sensing of a field |
Type |
Journal Article |
| Year |
2023 |
Publication |
Scipost Physics |
Abbreviated Journal |
SciPost Phys. |
| Volume |
14 |
Issue |
3 |
Pages |
050 - 18pp |
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| Abstract |
We show that a significant quantum gain corresponding to squeezed or over-squeezed spin states can be obtained in multiparameter estimation by measuring the Hadamard coefficients of a 1D or 2D signal. The physical platform we consider consists of twolevel atoms in an optical lattice in a squeezed-Mott configuration, or more generally by correlated spins distributed in spatially separated modes. Our protocol requires the possibility to locally flip the spins, but relies on collective measurements. We give examples of applications to scalar or vector field mapping and compressed sensing. |
| Address |
[Baamara, Youcef; Sinatra, Alice] Univ PSL, Univ Sorbonne, ENS, Lab Kastler Brossel,CNRS, 24 Rue Lhomond, F-75231 Paris, France, Email: alice.sinatra@lkb.ens.fr |
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| Publisher |
Scipost Foundation |
Place of Publication |
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| Language |
English |
Summary Language |
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Edition |
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| ISSN |
2542-4653 |
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Conference |
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| Notes |
WOS:000974981200008 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
5519 |
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| Author |
Reig, M. |
| Title |
On the high-scale instanton interference effect: axion models without domain wall problem |
Type |
Journal Article |
| Year |
2019 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
| Volume |
08 |
Issue |
8 |
Pages |
167 - 13pp |
| Keywords |
Cosmology of Theories beyond the SM; Beyond Standard Model; Gauge Symmetry |
| Abstract |
We show that a new chiral, confining interaction can be used to break Peccei-Quinn symmetry dynamically and solve the domain wall problem, simultaneously. The resulting theory is an invisible QCD axion model without domain walls. No dangerous heavy relics appear. |
| Address |
[Reig, Mario] Univ Valencia, AHEP Grp, Inst Fis Corpuscular, CSIC, Parc Cient Paterna,C Catedrat Jose Beltran 2, E-46980 Valencia, Spain, Email: mario.reig@ific.uv.es |
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Thesis |
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| Publisher |
Springer |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
1029-8479 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
WOS:000483916900002 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
no |
| Call Number |
IFIC @ pastor @ |
Serial |
4137 |
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| Author |
Bruschini, R.; Gonzalez, R. |
| Title |
A plausible explanation of Upsilon(10860) |
Type |
Journal Article |
| Year |
2019 |
Publication |
Physics Letters B |
Abbreviated Journal |
Phys. Lett. B |
| Volume |
791 |
Issue |
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Pages |
409-413 |
| Keywords |
Quark; Meson; Potential |
| Abstract |
We show that a good description of the Upsilon(10860) properties, in particular the mass, the e(+) e(-) leptonic widths and the pi(+) pi(-) Upsilon(ns) (n = 1, 2, 3) production rates, can be obtained under the assumption that Upsilon(10860) is a mixing of the conventional Upsilon(5s) quark model state with the lowest P-wave hybrid state. |
| Address |
[Bruschini, R.; Gonzalez, R.] Univ Valencia, CSIC, IFIC, Dept Fis Teor, Carrer Dr Moliner 50, E-46100 Burjassot, Valencia, Spain, Email: roberto.bruschini@ific.uv.es; |
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| Publisher |
Elsevier Science Bv |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0370-2693 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
WOS:000462321800059 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
no |
| Call Number |
IFIC @ pastor @ |
Serial |
3959 |
| Permanent link to this record |
