And Gamow said, Let there be a Hot Universe

0 downloads 0 Views 852KB Size Report
tum reasoning, how particles could get into the nucleus, .... tific joke. uIt seemed unfair to the Greek alphabet to have the article signed by Alpher and Gamow ...
Somak Raychaudhury

And Gamow said, Let there be a Hot Universe Somak Raychaudhury

! Somak Raychaudhury teaches astrophysics at the School of Physics and Astronomy, University of Birmingham, UK. He studied at Calcutta, Oxford and Cambridge, and has been on the staff of the Harvard-Smithsonian Center for Astrophysics and IUCAA (Pune).

"

%

# "

' "

& )

$ (

*

'

& "

+ , -

"

-"

&

. - " . " . *

*

'

(

* .

" "

- "

( * "

/

"

"

% -

"

"

"

*

"

" -

& "

'

" "

-

"

. 1 " Keywords Cosmology, microwave background radiation.

0 23

" 4

& "

*

" '

"

(

/ "

0 *

1

" /

*( Appeared in Vol.9, No.7, pp.32-43, 2004

218

RESONANCE  December 2005

And Gamow said, Let there be a Hot Universe

"

*( "

. "

"

(

"

-

" -"

"

"

"

must be expanding.

/ )

( ( '

& " )

theory was right, the Universe could not be static. In fact, right now, it

/

"

Lemaître realised that if Einstein’s

) )

/

"

" 5

"

( )

"

" (

4 #

67 /

4

.

.

%

( * 8 (

/ " &

'

+ & 4 &

* !

(

' -

"

( (

. * 9 :

. " %

%

"

8

RESONANCE  December 2005

219

Somak Raychaudhury

Gamow had risen to fame by applying the

% "

new-found laws of quantum mechanics

;

to explain the radioactive decay of

)

"

"( !

* "

" . ( 8

" & %

(

8

"

" " " ??

"

+ ( @

" "

" /

" "

+

" *

" (!

"

220

RESONANCE  December 2005

And Gamow said, Let there be a Hot Universe

/

Gamow named

"

A; "

B

( =" -

@ < %

-

the Webster’s dictionary to mean

" % (

this state “Ylem”, a word he found in

‘the first substance’.

"

,


1 ;

"

(

" ,

"

" %

"

"

( (

" "

"

/

-

" C "

"

" "

( 4 !

RESONANCE  December 2005

(

221

Somak Raychaudhury

D %

C -

"

"

/

" %

"

(

+

( -

(

" -

-

. "

9 :

"

-

%

"

"" A

(

B

, % " 8 -

" (

0+

% % "

"

#

.

0 " *

"

1 / #

This paper, which is the first detailed exposition of the physics of the Universe immediately after the Big Bang, has since then been known as the ‘alpha, beta,

"

+

#

* "

#

; A 67B .

"

1

"

%

+ -

"

"

( .

%

"

4

"

%

* "

" .

(

" (

gamma’ paper.

222

RESONANCE  December 2005

And Gamow said, Let there be a Hot Universe

"

+ .

4

##) " 8 -

E % ;#

/

" #

(

-

, # # " *

F @ / G

- " % "

# "

% "

"

"

" "

3

H A

.

*(

"