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The Hayward Metric from Vacuum Coherence: A Resonance-Based Derivation within RCFT and FCI

Author: Fernandes, Ricardo Miguel Machado
Publisher: Zenodo
DOI: 10.5281/zenodo.17316800
Source: https://zenodo.org/records/17316800/files/The_Hayward_Metric_from_Vacuum_Coherence__A_Resonance_Based_Derivation.pdf
The Haywa d Me ic om Vacuum Cohe ence:
A Resonance-Based De i a ion wi hin RCFT and FCI
Rica do Miguel Machado Fe nandes
Abs ac
We p esen a esonance-based de i a ion o wha we la e iden i ied as he Haywa d
egula black hole me ic, ob ained wi hin he Resonan Cohe ence Field Theo y
(RCFT) amewo k and shown o be ully complian wi h he Fundamen al Con-
se a ion o In o ma ion (FCI) p inciple. RCFT posi s g a i y as eme gen om
esonan con inemen o cohe en acuum phases, while FCI asse s ha physical p o-
cesses eo ganize bu ne e des oy in o ma ion. C ucially, his me ic o m was no
chosen phenomenologically bu eme ged di ec ly om i s p inciples o acuum co-
he ence and esonan con inemen . The esul ing geome y coincides wi h Haywa d’s
2006 egula black hole solu ion, p o iding a physical in e p e a ion o i s pa ame e s
in e ms o RCFT cohe ence scales. The independen con e gence o hese wo ame-
wo ks—one phenomenological and one om cohe en acuum dynamics—s eng hens
he physical plausibili y o his egula black hole geome y and ensu es in o ma ion
conse a ion unde g a i a ional collapse.
1 In oduc ion
We de i e, om he Resonan Cohe ence Field Theo y (RCFT) amewo k, a esonance-
based me ic iden ical in o m o he Haywa d egula black hole solu ion. RCFT concep-
ualizes g a i y as eme ging om he esonan con ainmen o cohe en acuum oscilla ions,
whe e space ime geome y a ises om phase-locked acuum dynamics. I is impo an o em-
phasize ha his o m was no sough h ough phenomenological i ing—indeed, Haywa d’s
2006 wo k was unknown o us du ing ini ial de elopmen . Ra he , he me ic a ose o gani-
cally om i s p inciples o acuum cohe ence and esonan con inemen , he ounda ional
mechanisms o RCFT.
The subsequen disco e y o i s iden i y wi h Haywa d’s model p o ides an independen
con e gence: a op-down phenomenological egula iza ion and a bo om-up RCFT mic o-
physical de i a ion each he same me ic. This s ongly ein o ces he physical plausibili y
o he geome y and i s alignmen wi h he Fundamen al Conse a ion o In o ma ion (FCI)
p inciple, whe e in o ma ion is ne e des oyed bu eo ganized h ough cohe ence.
1
2 Ma hema ical F amewo k
De ini ion 1 (The Me ic).The line elemen in s anda d Schwa zschild coo dina es is:
ds2=− ( )d 2+d 2
( )+ 2(dθ2+ sin2θ dϕ2) (1)
wi h me ic unc ion:
( ) = 1 −2GM 2
3+ 2GMℓ2(2)
whe e:
•M: ADM mass measu ed a spa ial in ini y,
•ℓ: RCFT acuum cohe ence leng h (co e phase-locking scale),
•G: New on’s g a i a ional cons an .
We wo k in uni s whe e c= 1.
Rema k 1 (His o ical Con ex ).This o m was i s p oposed by Haywa d (1) as a phe-
nomenological egula al e na i e o Schwa zschild. RCFT independen ly p oduces he same
s uc u e om he dynamics o cohe en acuum con inemen , p o iding i s physical ounda-
ion.
3 Resonance-Based De i a ion in RCFT
3.1 Vacuum Cohe ence Field
RCFT desc ibes he acuum as a complex scala cohe ence ield Φ = Aeiθ ep esen ing he
phase-locked s uc u e o he acuum:
LRCFT =−1
2(∇A)2−1
2A2(∇θ)2−Vcoh(A) (3)
whose sel -o ganized con inemen leads o cu a u e esis ance a small scales.
Theo em 1 (S ess-Ene gy Co espondence).The e ec i e s ess-ene gy enso o he
RCFT cohe en acuum is:
ρ( ) = 3ℓ2(GM)2
2πG( 3+ 2GMℓ2)2,(4)
p ( )=−ρ( ),(5)
p ( ) = 3ℓ2(GM)2( 3−GMℓ2)
πG( 3+ 2GMℓ2)3,(6)
which sa is ies ∇µTµν = 0 and sou ces p ecisely he me ic unc ion ( )abo e.
2
P oo . The Eins ein equa ions Gµν = 8πGTµν yield he abo e o ms when he po en ial akes
Vcoh(A) = 3
8πGℓ2−1
2m2A2+λA4+··· (7)
and ℓis iden i ied wi h he RCFT cohe ence leng h ξcoh ha se s he esonan con inemen
scale.
Lemma 1 (Ene gy Conse a ion).Fo aniso opic s ess-ene gy (ρ, p , p ), conse a ion
∇µTµ = 0 gi es:
p′
( ) + 2
(p −p )+(ρ+p ) ′( )
2 ( )= 0.
Subs i u ion o he abo e ρ, p , p sa is ies his iden i y iden ically, con i ming ull RCFT
sel -consis ency.
Rema k 2 (Cu a u e Regula i y).All cu a u e scala s a e ini e a = 0:
R→12
ℓ2, RµνRµν →36
ℓ4, RµνρσRµνρσ →24
ℓ4,(8)
demons a ing egula i y o he RCFT-de i ed geome y and FCI compliance (no in o ma ion-
des oying singula i y).
4 Physical In e p e a ion o Pa ame e s
Rema k 3 (Cohe ence Scale ℓ).In RCFT, ℓis he acuum cohe ence leng h:
ℓ∼ℓPl MPl
m es , ℓPl = ℏG
c3,(9)
whe e m es is he acuum esonance mass. This iden i ies ℓas a measu able cohe ence scale
a he han a ee geome ic pa ame e .
5 Compa ison wi h Haywa d’s Phenomenological Model
6 Key P ope ies and Ho izon S uc u e
P oposi ion 1 (Asymp o ic and Co e Limi s).1. Schwa zschild limi ℓ→0: ( )→
1−2GM
.
2. de Si e co e →0: ( )≃1− 2
ℓ2wi h Λe = 3/ℓ2.
3. Asymp o ic expansion → ∞: ( )=1−2GM
+4G2M2ℓ2
4+···.
P oposi ion 2 (Ho izons).Ho izons sa is y 3−2GM 2+ 2GMℓ2= 0. The disc iminan
gi es a c i ical alue
ℓc i =4
3√3GM ≈0.77GM
sepa a ing wo-ho izon, ex emal, and no-ho izon con igu a ions.
3
Aspec Haywa d (2006) RCFT–FCI F amewo k
Mo i a ion Phenomenological egula iza ion Fi s -p inciples om cohe en
acuum dynamics
Pa ame e ℓF ee pa ame e RCFT cohe ence leng h ℓ=ξcoh
Physical Basis Limi ing cu a u e conjec u e Resonan con ainmen ( acuum
as s anding-wa e medium)
S ess-Ene gy Imposed o m De i ed om RCFT Lag angian
In o ma ion Flow No speci ied FCI compliance: no loss, eo ga-
niza ion only
P edic ions Geome ic p ope ies + QNM shi s, echo imes, cohe -
ence scaling laws
Table 1: Compa ison be ween Haywa d’s phenomenology and RCFT–FCI de i a ion.
P oo . The cubic equa ion 3−2GM 2+ 2GMℓ2= 0 has disc iminan
∆ = (2GM)2[(2GM)4−27ℓ4].
When ∆ >0 (ℓ < ℓc i ), wo dis inc eal ho izons exis ; when ∆ = 0 (ℓ=ℓc i ), a double
ho izon (ex emal case); when ∆ <0 (ℓ > ℓc i ), no ho izons exis .
7 FCI Compliance and In o ma ion Conse a ion
The Fundamen al Conse a ion o In o ma ion (FCI) p inciple equi es ha no p ocess,
g a i a ional o o he wise, des oys in o ma ion—only eo ganizes i . Because he RCFT-
sou ced Haywa d me ic elimina es cu a u e singula i ies, he in o ma ion encoded in he
collapsing sys em ansi ions in o a s able, cohe en acuum domain cha ac e ized by ℓ.
Thus:
Collapse: Ima e −→ I acuum cohe ence,∆I= 0,
which sa is ies he FCI condi ion. The black hole in e io becomes an in o ma ion-p ese ing
condensa e a he han an in o ma ion sink.
8 New Physical Insigh s om RCFT
8.1 Resonan B ea hing Modes
RCFT na u ally sugges s ime-dependen ”b ea hing” modes:
( , ) = 0( )1+ϵS( ) sin(ω ),
whe e ωco esponds o he undamen al acuum esonance equency. This ansa z is heu is-
ic; a ully sel -consis en ime-dependen solu ion equi es sol ing he coupled ield–me ic
equa ions. These modes could gene a e measu able quasi-pe iodic oscilla ions in compac -
objec signals.
4
8.2 Obse able P edic ions
•QNM Shi s: ∆ / ∼(ℓ/GM)2 om cohe en back eac ion.
•Echo Times: τecho ∼GM log(GM/ℓ).
•Su ace G a i y Modi ica ion: κ=1
2| ′( h)|exhibi s small ℓ2co ec ions es able
ia g a i a ional wa e ingdowns.
9 Conclusion
Wi hin RCFT, he Haywa d me ic eme ges as a na u al mani es a ion o esonan acuum
cohe ence. Key ou comes:
•RCFT p o ides a physical o igin o he egula geome y om acuum con inemen .
•The cohe ence leng h ℓhas a mic ophysical in e p e a ion as he acuum phase-locking
scale.
•The geome y is egula and FCI-complian : in o ma ion is conse ed ia eo ganiza-
ion in o cohe en s a es.
•Obse able e ec s (QNM shi s, echoes) connec quan um-cohe en acuum s uc u e
o as ophysical signa u es.
This syn hesis o RCFT dynamics wi h FCI in o ma ion conse a ion demons a es ha
he Haywa d geome y is no me ely a ma hema ical con enience bu a na u al ou come o
cohe en ield heo y.
Acknowledgmen s
We hank S. A. Haywa d o pionee ing he egula me ic ha p o ided he benchma k
o his con e gence. The RCFT–FCI o mula ion p esen ed he e g ounds his solu ion in
physical i s p inciples.
Re e ences
[1] Haywa d, S. A. (2006). Fo ma ion and e apo a ion o egula black holes. Phys. Re .
Le . 96(3), 031103.
[2] Ba deen, J. M. (1968). Non-singula gene al- ela i is ic g a i a ional collapse. In P o-
ceedings o GR5, Tbilisi, p. 174.
[3] F olo , V. P. (2016). No es on non-singula models o black holes. Phys. Re . D 94(12),
124040.
[4] Chiba, T., & Kimu a, S. (2017). A no e on geodesics in he Haywa d me ic. P og. Theo .
Exp. Phys. 2017(4), 043E01.
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