TY  - JOUR
AU  - Beltrán, José
AU  - Luis Aina, Alfredo
PY  - 2005
DO  - 10.1103/PhysRevA.72.045801
SN  - 1050-2947
UR  - https://hdl.handle.net/20.500.14352/51499
T2  - Physical review A
AB  - We analyze the performance of nonlinear detection schemes surpassing the Heisenberg limit with semiclassical input states when using realistic detectors having nonunit detection efficiency.
LA  - eng
M2  - 045801_1
PB  - American Physical Society
KW  - Electromagnetically induced transparency
KW  - Quantum-mechanical noise
KW  - Interferometric measurements
KW  - Precision-measurement
KW  - Fisher information
KW  - Projection noise
KW  - Coherent states
KW  - Wave detectors
KW  - Squeezed-light
KW  - Phase
TI  - Breaking the Heisenberg limit with inefficient detectors
TY  - journal article
VL  - 72
ER  -