Nanoelectromechanics of Coulomb Blockade Nanostructures

R1

a)

m

R2

V/2

-V/2 k

k

"unloading" of 2N electrons

b)

"loading" of 2N electrons

q=Ne V/2

-V/2 q=-Ne electrostatic field

Iπ/eω

l

4 3.5 3 2.5 2 1.5 1 0.5 0

Vc

6

5

4 2

3

2Ω /γν

2

1

0 0

0.5 1

1.5 2 VC/e

2.5 3

3.5

Iπ/eω

4 total current

3 shuttle current

2

1

0

tunnel current

1

2

3

2

2Ω /γν

4

5

6

HC

L

HJ

HJ

R

^ U+(χ+) ^ SL (ΦL )

xB xA

^ SR(ΦR ) ^ (χ ) U - -