41
信信信信信信信信 Test the origin of gravity as an entropy force 信信 信信信信信信信信信 2010,March

信息引力 论的验证 Test the origin of gravity as an entropy force

  • Upload
    edison

  • View
    205

  • Download
    0

Embed Size (px)

DESCRIPTION

信息引力 论的验证 Test the origin of gravity as an entropy force. 程曜 清华大学工程物理系 2010,March. Newton. 理性力学. 牛顿 1643-1727 图 : 维基百科. http://www.studio-ylin.com/cambridge/DSC06002.jpg. Einstein. 爱因斯坦 1879-1955 图 : 维基百科. 等效原理 : 重力弯曲空间 图 : 维基百科. Erik P. Verlinde. 重力由信息产生 - PowerPoint PPT Presentation

Citation preview

Page 1: 信息引力 论的验证 Test the origin of gravity as an entropy force

信息引力论的验证Test the origin of gravity as an entropy force

程曜清华大学工程物理系2010,March

Page 2: 信息引力 论的验证 Test the origin of gravity as an entropy force

Newton

http://www.studio-ylin.com/cambridge/DSC06002.jpg.牛顿 1643-1727图 :维基百科

21 2

2 2

mmd xF ma m F Gdt R

理性力学

Page 3: 信息引力 论的验证 Test the origin of gravity as an entropy force

Einstein

爱因斯坦 1879-1955图 :维基百科 等效原理 :重力弯曲空间图 :维基百科

21 2

2 2

4

8

mmd xF ma m F Gdt R

GG g Tc

Page 4: 信息引力 论的验证 Test the origin of gravity as an entropy force

Erik P. Verlinde

Erik P Verlinde 1962-图 :Guus Dubbelman / de Volkskrant重力由信息产生http://plus.maths.org/issue51/features/maldacena/HologramIllustration_small.jpg

22BdS SF ma T kdx N c

Page 5: 信息引力 论的验证 Test the origin of gravity as an entropy force

J0806.3+1527

Binary white dwarfs 50,000 miles apart orbiting with period of 321sRight ascension: 08h 06m 23.20s, Declination: +15° 27' 30.20"Distance: 1600 light years, Mass: 0.5 (primary) / 0.5 (b) M ☉Frequency 0.374 min-1, GW amplitude 10-21

http://chandra.harvard.edu/photo/2005/j0806/

Page 6: 信息引力 论的验证 Test the origin of gravity as an entropy force

n

p+

n

Ground stateGround state

Long-lived isomeric state

(, ’) processLong-lived Emission

Cascade Decay

Bremsstrahlung

De-excitation process should provide isotropic emission

Page 7: 信息引力 论的验证 Test the origin of gravity as an entropy force

Long-lived Mössbauer Photon

Page 8: 信息引力 论的验证 Test the origin of gravity as an entropy force

Experimental Procedure

Page 9: 信息引力 论的验证 Test the origin of gravity as an entropy force

Dependence on ExposureI

II

III

Phase transition of collective mode

Page 10: 信息引力 论的验证 Test the origin of gravity as an entropy force

Cooling Effect

Page 11: 信息引力 论的验证 Test the origin of gravity as an entropy force

Mollow TripletStrong coupling between photon and nuclei

f

i R

R

RR

kink

Rabi frequencyR 430 eV

1. Resonance2. Strong field

• Localization• Translational symmetry breaking

3. Macroscopic coherence• Macroscopic polarization• Rotational symmetry breaking

4. Irreversible nonlinear increase• Trapped collective mode

5. Phase transition

Page 12: 信息引力 论的验证 Test the origin of gravity as an entropy force

Anomalous Emissions of 103mRh

Typical spectral profile of 103mRh emissions measured by the HPGe detector. 1: unknown 2: escapes of K lines, 3: K lines, 4: K lines, 5: escapes of , 6: pile-ups between K lines and their escapes, 7: , 8: pile-ups of K lines.

Rh K edge

f

i

k

Cascade decay

Page 13: 信息引力 论的验证 Test the origin of gravity as an entropy force

Anomalous Peaks

Rotational symmetry breakingGoldstone mode19.8 8keV=1/2(39.76 keV)

Page 14: 信息引力 论的验证 Test the origin of gravity as an entropy force

Anomalous Emissions of 93mNb

Typical spectral profile of 93mNb emissions measured by the Si detector. 1: unknown 2: Zr K lines, 3: Nb K lines, 4: Zr K lines, 5: Nb K lines, 6: unknown.

f

i

k1 2

3

45

6

Ei-Ef=30.8 keV

Page 15: 信息引力 论的验证 Test the origin of gravity as an entropy force

Anomalous Emissions of 93mNb

f

i

k

Massive Goldstone mode15.4 keV=1/2(30.8 keV)

Ei-Ef=30.8 keV

Page 16: 信息引力 论的验证 Test the origin of gravity as an entropy force

Cascade Decay in Cavity

Atom-field coupling

f

i

Two-level atomwith forbidden transitionE=Ei-Ek=Ek-Ef

=1/2(Ei-Ef)E is the resonant frequency of cavity

kE

Page 17: 信息引力 论的验证 Test the origin of gravity as an entropy force

|G,1/2->

|E,7/2+>39.76keV

1

23

4

(a) (b)

(c) (d)

k1 k2E2

E1

H1+H2

k1 k2

qm+Gh

Cascade Biphoton

Page 18: 信息引力 论的验证 Test the origin of gravity as an entropy force
Page 19: 信息引力 论的验证 Test the origin of gravity as an entropy force
Page 20: 信息引力 论的验证 Test the origin of gravity as an entropy force

Superradiance(Collective Mode)1 1

fi fi fi fiN N N

Superradiance M NM M NMNN

Page 21: 信息引力 论的验证 Test the origin of gravity as an entropy force

s i M m

s i h m

k k G q

, ,1 1

1, ,

N N

h n jkh mh j mh k m h nn m jkh

g b O A A aN

R q G R

, ,, 1

, ,, 1

1,

2

12

s s i i

s i

s i

Ni i

jkh s i mh j mh k s i M m s i m hm

Ni i

mh j mh k s i M m m hm

A A e eN

A A e eN

k r k r

k k

K R k r

k k

r r k k q G

K q G

2,

1

, ,1

, sin

, cos

hm

hm

i Nis

h ml jm j

i Nit

jkh ml j m km

eA e

N

eA A e

N

G Rq R

G Rq R

R r k r

R r k r

Brillouin Scattering

Page 22: 信息引力 论的验证 Test the origin of gravity as an entropy force

Anderson-Higgs Mechanism

2 4*

2 2 2 2

1 1 1 14 2 2 4

1 1 14 2 4

2

i

A

H

L F F igA igA

ve

L F F g v A A v

M gv

M

Page 23: 信息引力 论的验证 Test the origin of gravity as an entropy force

Massive wave

E

Page 24: 信息引力 论的验证 Test the origin of gravity as an entropy force

103mRh spin-density waveSchematic drawing of 1+2D texture

Exchange coupling J>0 Ferro for Fermion and Antiferro for Boson

Page 25: 信息引力 论的验证 Test the origin of gravity as an entropy force

BEC or Cooper Paring?1012 cm-3, BEC critical density with eV mass at 300K

Page 26: 信息引力 论的验证 Test the origin of gravity as an entropy force

Onsager-Feynman quantization condition

of superfluid state

se

e v dlm

K

K CoutsCouts

Page 27: 信息引力 论的验证 Test the origin of gravity as an entropy force

Off-diagonal Long-ranged Order

Page 28: 信息引力 论的验证 Test the origin of gravity as an entropy force

Off-diagonal Long-ranged Order

Page 29: 信息引力 论的验证 Test the origin of gravity as an entropy force

Biphoton lasing?

Page 30: 信息引力 论的验证 Test the origin of gravity as an entropy force
Page 31: 信息引力 论的验证 Test the origin of gravity as an entropy force

Summary of Experimental Results

• Massive nuclear spin-density wave (eV mass)• Strong coupling• Transparent to electrons• Symmetry Breaking (rotation & translation)• Collective Mode in Photonic Crystal• BEC phase Transition (order parameter: biphoton parity?)• Sensitive to Gravity• Giant Magneton eV/T• Biphoton lasing

Page 32: 信息引力 论的验证 Test the origin of gravity as an entropy force

g h

1 0 0 00 1 0 00 0 1 00 0 0 1

0 0 0 00 0 1 00 1 0 00 0 0 0

i kz th he

Page 33: 信息引力 论的验证 Test the origin of gravity as an entropy force

Detection Band

• Low frequency band: 100 nHz – 1Hz• Long-lived nuclear states obtained by

bremsstrahlung and neutron irradiation– 103mRh: half-life 56 min– 93mNb: half-life 16.12 yr– 195mPt: half-life 4.02 d– 193mIr: half-life 10.53 d

Page 34: 信息引力 论的验证 Test the origin of gravity as an entropy force

Quantum Electrodynamics

Dipole

21 2: fi f iFermi golden rule M

2

3

0, 1 ...

0, 10

i

fi

f i e i

eM f imc

k rA P k r k r

A P k r k r

Quadruple

fi IeM f H i f imc

A P

Cascade decay with entangled biphoton

2

fik i k i

f k k ieMmc

A P A P

f

i

k

Page 35: 信息引力 论的验证 Test the origin of gravity as an entropy force

Nuclear Raman Effect12I

eH f i f h imc m

A P P P!

2

2 3

0, 0

1 ...

0, 10

j k

i

fi

f i f P r i

e i

eM f imc

k r

P

A A k r k r

A P k r k r

Octupole

GW-induced

2

2 22103 18

2 2293 21

2

: 10

: 10

fik i I i

mfi fi

mfi fi

f k k h ieM hm c

For Rh M h M h

For Nb M h M h

A P P P

!!

! !

! !f

iGW

Page 36: 信息引力 论的验证 Test the origin of gravity as an entropy force

Frequency Band of Interest

• Low frequency band: 100 nHz – 1Hz• Candidates of multipolar nuclear transitions• Following long-lived states have been carried

out by bremsstrahlung irradiation– 103mRh: half-life 56 min– 93mNb: half-life 1.6 yr– 195mPt: half-life 4.02 d– 193mIr: half-life 10.53 d

Page 37: 信息引力 论的验证 Test the origin of gravity as an entropy force

Suggested Detection Scheme (103mRh)

t

R

Mollow triplet

LN2 cooling

f

0pairGW

23

9 20

13 24

10

10 1, 10

10 1, 10

R fiM h t

for N

N h h

N h h

!

! !

! !

biphoton

R

R

i

0pair

Page 38: 信息引力 论的验证 Test the origin of gravity as an entropy force

J0806.3+1527

Binary white dwarfs 50,000 miles apart orbiting with period of 321sRight ascension: 08h 06m 23.20s, Declination: +15° 27' 30.20"Distance: 1600 light years, Mass: 0.5 (primary) / 0.5 (b) M ☉GW amplitude 10-21, GW frequency 0.374 min-1.http://chandra.harvard.edu/photo/2005/j0806/

Page 39: 信息引力 论的验证 Test the origin of gravity as an entropy force

Arms of Milky way

Page 40: 信息引力 论的验证 Test the origin of gravity as an entropy force

Oscillation Frequency of the Rabi FloppingPoor RepetitionThe peak at 0.372 min-1 is 0.5% less than 0.374 min-1, which is the GW frequency of J0806.3+1527

Page 41: 信息引力 论的验证 Test the origin of gravity as an entropy force

Oscillation Frequency of the Rabi Flopping

Morning, 24th, may, 2006 Night, 23rd, may, 2006

Poor RepetitionThe peak at 0.368 min-1 is 2% less than 0.374 min-1, which is the GW frequency of J0806.3+1527