shot noise in mesoscopic conductors - Low Temperature Laboratory

More documents

Recommendations

Info

138 Ya.M. Blanter, M. Bu( ttiker / Physics Reports 336 (2000) 1}166 Fig. 36. Experiments by Birk et al. [30]. Left: shot noise in the quantum dot with R "2R (diamonds); the inset shows the I}< characteristics. Right: I}< curve (top) and shot noise (bottom) in a very asymmetric quantum dot. Solid curves show the theory of Hersh"eld et al. [283]. Dashed lines in all cases show the Poisson value 2eI and the value eI. Copyright 1995 by the American Physical Society. at time intervals which are clearly not given by a Poisson distribution. Instead, here, ideally the charge transfer process is clocked and there is no shot noise. However in an array of tunnel junctions, there exists the possibility to observe both current oscillations and shot noise: In an array charge transfer occurs via a soliton (a traveling charge wave). Korotkov et al. [293] and Korotkov [294] "nd that arrays of tunnel barriers exhibit both a current that oscillates (on the average) at a frequency "I/e, and shot noise which is strongly peaked at the frequency . Another type of oscillations are Bloch oscillations, which are due to the translational symmetry of the array. Their frequency is proportional to the voltage drop across each contact; if the array is long and
Ya.M. Blanter, M. Bu( ttiker / Physics Reports 336 (2000) 1}166 139 which give rise to current slightly above the threshold < "e/C. The dominant process is an electron coming from a reservoir which is Andreev re#ected at the interface, and generates a Cooper pair in the superconducting grain, which is again converted to an electron and a hole pair at the interface. This process results in the transfer of an e!ective charge of 2e; the Fano factor is thus 2. For e/C(e
Page 1 and 2:
Ya.M. Blanter, M. BuK ttiker / Phys
Page 3 and 4:
8. Concluding remarks, future prosp
Page 5 and 6:
text; they are usually extensions o
Page 7 and 8:
such reviews are not readily availa
Page 9 and 10:
Ya.M. Blanter, M. Bu( ttiker / Phys
Page 11 and 12:
The above considerations are, of co
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
and the initial state of our two-pa
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
2.3.3. Multi-terminal case We consi
Page 25 and 26:
Note that in the absence of time-de
Page 27 and 28:
Page 29 and 30:
equilibrium and shot noise. For low
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
and S" e A e< dE ¹(E )[1!¹
Page 41 and 42:
arrier, situated in the region !w/2
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
we include weak localization e!ects
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Edge channels in the quantum Hall e
Page 61 and 62:
Fig. 19. (a) Geometry of a ring thr
Page 63 and 64:
a manifestation of interference e!e
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Physically, this corresponds to ele
Page 71 and 72:
Page 73 and 74:
Our starting point is Eq. (51), whi
Page 75 and 76:
Page 77 and 78:
introducing the transmission coe$ci
Page 79 and 80:
investigated experimentally. A self
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
and the non-equilibrium resistance
Page 87 and 88: the sample. These electrons are des
Page 89 and 90: Ya.M. Blanter, M. Bu( ttiker / Phys
Page 93 and 94: with D ,¹ (2!¹ ). Performing t
Page 97 and 98: For completeness, we mention that i
Page 107 and 108: We note here, however, that there i
Page 111 and 112: The noise power (201) is strongly v
Page 113 and 114: Fig. 32. Experimental results of Ku
Page 115 and 116: where Ya.M. Blanter, M. Bu( ttiker
Page 117 and 118: where the quantity is expressed th
Page 119 and 120: 6.3. Interaction ewects Ya.M. Blant
Page 123 and 124: one "rst goes from the non-interact
Page 125 and 126: non-thermalized electrons, the high
Page 129 and 130: Fig. 34. Geometry of the chaotic ca
Page 133 and 134: which describes strictly ballistic
Page 137: Ya.M. Blanter, M. Bu( ttiker / Phys
Page 141 and 142: approximately e/C. Between the peak
Page 149 and 150: Boltzmann}Langevin approach (see Se
Page 151 and 152: thermal to shot noise. It is, howev
Page 153 and 154: Note added in proof Ya.M. Blanter,
Page 155 and 156: and Lee et al. [340] obtain in this
show all

shot noise in mesoscopic conductors - Low Temperature Laboratory

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?