Motional Quantum Metrology with Tailored Fock State Mixtures
POSTER
Abstract
We present a protocol to produce a class of non-thermal Fock state mixtures in trapped ions. This
class of states features a clear metrological advantage with respect to the ground state, thus
overcoming the standard quantum limit without the need for full sideband cooling and Fock-state
preparation on a narrow electronic transition. The protocol consists in the cyclic repetition of
red-sideband (RSB), measurement and preparation laser pulses. By means of the Kraus map
representation of the protocol, it is possible to relate the length of the RSB pulses to the specific
class of states that can be generated. Analysis beyond the Lamb Dicke regime and considering EIT carrier absorption elimination enhances the parametric regime where these states can be reliably reproduced.
class of states features a clear metrological advantage with respect to the ground state, thus
overcoming the standard quantum limit without the need for full sideband cooling and Fock-state
preparation on a narrow electronic transition. The protocol consists in the cyclic repetition of
red-sideband (RSB), measurement and preparation laser pulses. By means of the Kraus map
representation of the protocol, it is possible to relate the length of the RSB pulses to the specific
class of states that can be generated. Analysis beyond the Lamb Dicke regime and considering EIT carrier absorption elimination enhances the parametric regime where these states can be reliably reproduced.
*Project TAQNED, Project CNS2023-144994.
Presenters
-
Gonzalo Reina Rivero
- Universidad Politecnica de Cartagena