CPT violation in entangled <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msup><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>–<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:msup><mml:mover accent="true"><mml:mi>B</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mn>0</mml:mn></mml:msup></mml:math> states and the demise of flavour tagging

Álvarez, Ezequiel; Bernabéu, J.; Mavromatos, Nikolaos; Nebot, Miguel; Papavassiliou, Joannis

doi:10.1016/j.physletb.2004.12.032

Cited by 17 publications

(6 citation statements)

References 31 publications

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“…For the moment, let us concentrate first to the neutral Kaon system, where the ω-effects are dominant, as compared to other entangled neutral mesons, although conceptually our analysis applies equally [49] to entangled B-meson factories as well, such as those of [35]. In a quantum-gravity induced decohered situation, the Neutral mesons K 0 and K 0 should no longer be treated as identical particles.…”

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

“…Although in this case there is no particularly good channel to lead to enhancement of the sensitivity, as in the Φ-factories, nevertheless one gains in statistics, and hence interesting limits may also be obtained [49]. The presence of a quantum-gravity induced ω-effect in B systems is associated with a theoretical limitation on flavour tagging, namely the fact that in the absence of such effects the knowledge that one of the two-mesons in a meson factory decays at a given time through a flavour-specific channel determines unambiguously the flavour of the other meson at the same time.…”

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

“…This is not true if intrinsic CPT Violation is present. One of the relevant observables [49] is given by the CP-violating semi-leptonic decay charge asymmetry (in equal-sign dilepton channel), with the first decay B → X ± being time-separated from the second decay B → X ± by an interval ∆t. In the absence of ω-effects, the intensity at equal decay times vanishes, I sl ( ± , ± , ∆t = 0) = 0, whilst in the presence of a complex ω = |ω|e…”

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

“…In such a case, the asymmetry observable exhibits a peak, whose position depends on |ω|, while the shape of the curve itself depends on the phase Ω [49]. The analysis of [49], using the above charge asymmetry method and comparing with currently available experimental data, leads to the following bounds:…”

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

“…The analysis of [49], using the above charge asymmetry method and comparing with currently available experimental data, leads to the following bounds:…”

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

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Models & Searches of CPT Violation: a personal, very partial, list

Mavromatos

2018

EPJ Web Conf.

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Abstract. In this talk, first I motivate theoretically, and then I review the phenomenology of, some models entailing CPT Violation (CPTV). The latter is argued to be responsible for the observed matter-antimatter asymmetry in the Cosmos, and may owe its origin to either Lorentz-violating background geometries, whose effects are strong in early epochs of the Universe but very weak today, being temperature dependent in general, or to an ill-defined CPT generator in some quantum gravity models entailing decoherence of quantum matter as a result of quantum degrees of freedom in the gravity sector that are inaccessible to the low-energy observers. In particular, for the latter category of CPTV, I argue that entangled states of neutral mesons (Kaons or B-systems), of central relevance to KLOE-2 experiment, can provide smoking-gun sensitive tests or even falsify some of these models. If CPT is ill-defined one may also encounter violations of the spinstatistics theorem, with possible consequences for the Pauli Exclusion Principle, which I only briefly touch upon.

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Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

“…The analysis of [49], using the above charge asymmetry method and comparing with currently available experimental data, leads to the following bounds:…”

Section: Intrinsic Cpt Violation In Quantum Decoherence Models -The ωmentioning

confidence: 99%

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Models & Searches of CPT Violation: a personal, very partial, list

Mavromatos

2018

EPJ Web Conf.

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Estimation of $${T}$$ and $${C\!P T}$$ Violation in Neutral B Meson Mixing from Indirect $${C\!P}$$ Asymmetry

Karan

Nayak

2019

Springer Proceedings in Physics

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Quantum Gravity, CPT symmetry and entangled states

Mavromatos¹

2009

Exa/Leap 2008

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There may unique ("smoking-gun") signatures of the breakdown of CPT symmetry, induced in some models of Quantum Gravity entailing decoherence for quantum matter. Such effects can be observed in entangled states of neutral mesons via modifications of the respective Einstein-Podolsky-Rosen (EPR) correlators ("ω-effect). In the talk I discuss experimental signatures and bounds of the ω-effect in Φ-and B-factories, and argue that the effect might be falsifiable at the next generation facilities.

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CPT violation in entangled B0–B¯0 states and the demise of flavour tagging

Cited by 17 publications

References 31 publications

Models & Searches of CPT Violation: a personal, very partial, list

Models & Searches of CPT Violation: a personal, very partial, list

Estimation of $${T}$$ and $${C\!P T}$$ Violation in Neutral B Meson Mixing from Indirect $${C\!P}$$ Asymmetry

Quantum Gravity, CPT symmetry and entangled states

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