6 papers
Fast Generation of Metrologically Relevant Fock State Mixtures
Gonzalo Reina Rivero, Marcel Morillas-Rozas, Alberto López-GarcÃa +1
We propose a fast laser pulse sequence for the generation of non-thermal Fock state mixtures of the motion of a trapped ion, targeted at displacement metrology beyond the standard…
Critical Sensing with Autonomous Devices: The Self-Oscillation Threshold of a Frequency-Locked NV-Centre Magnetometer
Joan Toledo Aguilera, Gonzalo Reina Rivero, Marcel Morillas-Rozas +1
Feedback locking of a probe frequency to a spin resonance is the standard operating mode of precision quantum sensors. Here we deliberately operate such a lock outside its stable r…
Dark Polaron Theory for High Intensity Laser Cooling
Marcel Morillas-Rozas, Alberto López-GarcÃa, Enamul Haque +2
Conventional laser control schemes for cooling and gate operation of trapped ions are limited to the regime of weak laser intensities and small Lamb-Dicke parameters. To overcome t…
Fast Arbitrary Qutrit Gates for NV Centers in the Low-Field Regime
Alberto López-GarcÃa, Marcel Morillas-Rozas, Alberto Mayorgas +1
The ground state of the negatively charged NV center forms a spin-1 manifold providing a versatile platform for sensing and information processing. Here we present a scheme for imp…
The Transfer Tensor Method: an Analytical Study Case
Marcel Morillas-Rozas, Alberto López-GarcÃa, Gonzalo Reina Rivero +2
The transfer tensor method is a versatile tool for analyzing and propagating general open quantum systems. It captures in a compact manner all memory effects in a non-Markovian sys…
Entanglement Generation on the Double Quantum Transition of NV Ground State Via Globally Addressing Microwave Pulse
Marcel Morillas-Rozas, Alberto López-GarcÃa, Javier Cerrillo
Entanglement is a key quantum feature that enables quantum sensors to improve their sensitivity up to the Heisenberg limit. In the NV center platform, the Heisenberg limit can only…