Clock transition by continuous dynamical decoupling of a three-level system
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-31984-4
Abstract: We present a novel continuous dynamical decoupling scheme for the construction of a robust qubit in a three-level system. By means of a clock transition adjustment, we first show how robustness to environmental noise is… read more here.
Keywords: level system; transition; clock transition; dynamical decoupling ... See more keywords
Dynamical decoupling of laser phase noise in compound atomic clocks
Sign Up to like & getrecommendations! Published in 2019 at "Communications Physics"
DOI: 10.1038/s42005-020-00452-9
Abstract: The frequency stability of many optical atomic clocks is limited by the coherence of their local oscillator. Here, we present a measurement protocol that overcomes the laser coherence limit. It relies on engineered dynamical decoupling… read more here.
Keywords: phase; laser; laser phase; coherence ... See more keywords
Robust Two-Qubit Gates Using Pulsed Dynamical Decoupling
Sign Up to like & getrecommendations! Published in 2022 at "New Journal of Physics"
DOI: 10.1088/1367-2630/acd4db
Abstract: We present the experimental implementation of a two-qubit phase gate, using a radio frequency (RF) controlled trapped-ion quantum processor. The RFdriven gate is generated by a pulsed dynamical decoupling sequence applied to the ions’ carrier… read more here.
Keywords: phase shift; two qubit; dynamical decoupling; phase ... See more keywords
Experimental protection of arbitrary states in a two-qubit subspace by nested Uhrig dynamical decoupling
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.052337
Abstract: We experimentally demonstrate the efficacy of a three-layer nested Uhrig dynamical decoupling (NUDD) sequence to preserve arbitrary quantum states in a two-dimensional subspace of the four-dimensional two-qubit Hilbert space, on an NMR quantum information processor.… read more here.
Keywords: protection; nested uhrig; states two; two qubit ... See more keywords
Design method of dynamical decoupling sequences integrated with optimal control theory
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.022331
Abstract: A method for synthesizing dynamical decoupling (DD) sequences is presented, which can tailor these sequences to a given set of qubits, environments, instruments, and available resources using partial information of the system. The key concept… read more here.
Keywords: decoupling sequences; control; dynamical decoupling; design method ... See more keywords
Pulsed dynamical decoupling for fast and robust two-qubit gates on trapped ions
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.97.052312
Abstract: We propose a pulsed dynamical decoupling protocol as the generator of tunable, fast, and robust quantum phase gates between two microwave-driven trapped ion hyperfine qubits. The protocol consists of sequences of $\pi$-pulses acting on ions… read more here.
Keywords: fast robust; pulsed dynamical; two qubit; dynamical decoupling ... See more keywords
Nonvanishing effect of detuning errors in dynamical-decoupling-based quantum sensing experiments
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.012110
Abstract: Characteristic dips appear in the coherence traces of a probe qubit when dynamical decoupling (DD) is applied in synchrony with the precession of target nuclear spins, forming the basis for nanoscale nuclear magnetic resonance (NMR).… read more here.
Keywords: nonvanishing effect; coherence; qubit; dynamical decoupling ... See more keywords
Fast Dynamical Decoupling of the Mølmer-Sørensen Entangling Gate.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.220505
Abstract: Engineering entanglement between quantum systems often involves coupling through a bosonic mediator, which should be disentangled from the systems at the operation's end. The quality of such an operation is generally limited by environmental and… read more here.
Keywords: pulses applied; fast dynamical; entangling gate; dynamical decoupling ... See more keywords
Uniaxial Dynamical Decoupling for an Open Quantum System.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.010408
Abstract: Dynamical decoupling (DD) is an active and effective method for suppressing decoherence of a quantum system from its environment. In contrast to the nominal biaxial DD, this work presents a uniaxial decoupling protocol that requires… read more here.
Keywords: dynamical decoupling; uniaxial dynamical; decoupling open; quantum ... See more keywords