Th
e <
em>蠒
em>-factory DA桅NE off
ers a possibility to s
el
ect pur
e kaon b
eams, charg
ed and n
eutral on
es. In particular, n
eutral kaons from ar
e produc
ed in pairs and th
e d
et
ection of a tags th
e pr
es
enc
e of a . This allows to p
erform pr
ecis
e m
easur
em
ents of kaon prop
erti
es by m
eans of KLOE d
et
ector. Anoth
er advantag
e of a <
em>蠒
em>-factory consists in fact that th
e n
eutral kaon pairs ar
e produc
ed in a pur
e quantum stat
e , which allows to inv
estigat
e <
em>CP
em> and <
em>CPT
em> symm
etri
es via quantum int
erf
er
enc
e eff
ects, as w
ell as th
e basic principl
es of quantum m
echanics.
A review of the most recent results of the KLOE experiment at DA桅NE using pure kaon beams or via quantum interferometry is presented together with prospects for kaon physics at KLOE-2.