Can future observation of the living partner post-tag the past decayed state in entangled neutral K-mesons?

Novel quantum phenomena have been recently discussed [1] in association to a peculiar time correlation between entangled neutral kaons produced at a ϕ-factory: the past state of the first decayed kaon, when it was still entangled before its decay, is post-tagged by the result and the time of the future observation on the other kan decay. This surprising “from future to past” effect is fully observable and leads to the unique experimental tag of the K

_{S}

state, an unsolved problem since the discovery of CP violation. The first preliminary results obtained on the analysis of data collected by the KLOE experiment at the DAΦNE collider, and showing experimental evidence of this new effect are presented.

correlation: time
CP: violation
entanglement
KLOE
meson

References(5)

Figures(0)

[1]

Can future observation of the living partner post-tag the past decayed state in entangled neutral $K$ mesons?

Jose Bernabeu
(
- Valencia U., IFIC
)
,
Antonio Di Domenico
(
- INFN, Rome and
- Rome U.
)

- Phys.Rev.D 105 (2022) 11, 116004
•
e-Print:
- 1912.04798
•
DOI:
- 10.1103/PhysRevD.105.116004

[2]

Demonstration of Quantum Mechanics in the Large

T.B. Day
(
- Maryland U.
)

- Phys.Rev. 121 (1961) 1204-1206
•
DOI:
- 10.1103/PhysRev.121.1204

[3]

Completeness of quantum mechanics and charge-conjugation correlations of theta particles

D.R. Inglis

- Rev.Mod.Phys. 33 (1961) 1-7
•
DOI:
- 10.1103/RevModPhys.33.1

[4]

Handbook on neutral kaon interferometry at a Φ-factory

Precision tests of quantum mechanics and $\mathcal{CPT}$ symmetry with entangled neutral kaons at KLOE

KLOE-2

Collaboration

•

D. Babusci
(
- Frascati
)

et al.

- JHEP 04 (2022) 059,
- JHEP 04 (2022) 169 (erratum)
•
e-Print:
- 2111.04328
•
DOI:
- 10.1007/JHEP04(2022)059