274 Index
demon
Maxwell’s, 190
density
probability, 232
density matrix, 12, 238
dephasing
qubit, 172
DES, 221
description
state
local realistic, 46
detection
coincidence, 55, 62
Deutsch, D., 136, 220
diagram
Hasse, 241
Dieks, D., 154
Dirac notation, 237
Dirac, P. A. M., xii, 32
discrimination, 71
dispersion, 49
distance
Fubini–Study, 237
Hamming, 75
Hilbert–Schmidt, 128, 236
Kullback–Leibler, 71, 141, 261
distinguishability, 19, 21–23, 60, 72, 85,
128
distribution function
cumulative, 232
double-slit experiment, 18
down-conversion
spontaneous parametric, 115–118
Type-I, 117
Type-II, 118
dual-rail qubit, 20
dynamical map, 5, 30
e-bit, 95, 113
E91, 197, 198
eavesdropper, 191, 200
eavesdropping, 199
attack
coherent, 200
collective, 200
incoherent, 200
individual, 154, 200
joint, 200
strategy
intercept–resend, 200
opaque, 200
translucent, 201
effect, 42
effects
coexistent, 42
eigensubspace, 38
eigenvalue, 234
eigenvalue–eigenstate link, 30
eigenvector, 234
Einstein, A., 49, 91
Einstein, Podolsky and Rosen (see
EPR), 49
Ekert protocol, 197
Ekert, A., 197
element
identity, 232, 239, 240
zero, 233, 240
ellipsometry, 142
encryption, 191, 192
ensemble, 2, 6, 19, 21–23, 31, 33, 36, 37,
56, 60, 77, 83, 106, 107, 113, 139,
140, 148, 149, 152–154, 159, 167,
168, 172
entanglement, 14, 27, 45, 46, 59–61, 63,
81, 82, 84, 87, 91–114, 117–119,
123, 124, 126, 127, 130, 133, 134,
147, 151, 160, 164–167, 169, 172,
193
“thermodynamics” of, 110–113
bipartite
properties of, 102
bound, 100, 105
concentration of, 165
Procrustean method of, 167
Schmidt-projection method of, 167
concurrence measure of, 106
continuity condition on, 102
cost, 104
distillation of, 104, 105, 108, 165
distribution of, 104
equivalence classes, 130
free, 104
geometry of, 114
multipartite, 46, 124, 128, 133
negativity measure of, 99
pre-existing, 63
purification of, 104, 165
reduction criterion for, 101