New experimental and theoretical approach to the 3d D-level lifetimes of 40Ca+

Abstract

We report measurements of the lifetimes of the 3d ${}^2$D${}_{5/2}$ and 3d ${}^2$D${}_{3/2}$ metastable states of a single laser-cooled ${}^{40}$Ca${}^{+}$ ion in a linear Paul trap. We introduce a new measurement technique based on high-efficiency quantum state detection after coherent excitation to the D${}_{5/2}$ state or incoherent shelving in the D${}_{3/2}$ state, and subsequent free, unperturbed spontaneous decay. The result for the natural lifetime of the D${}_{5/2}$ state of 1168(9) ms agrees excellently with the most precise published value. The lifetime of the D${}_{3/2}$ state is measured with a single ion for the first time and yields 1176(11) ms which improves the statistical uncertainty of previous results by a factor of four. We compare these experimental lifetimes to high-precision ab initio all order calculations and find a very good agreement. These calculations represent an excellent test of high-precision atomic theory and will serve as a benchmark for the study of parity nonconservation in Ba${}^{+}$ which has similar atomic structure.

13 pages, 8 figures

References in corpus (13)

• Quantum state engineering on an optical transition and decoherence in a Paul trap
• Relativistic many-body calculations of energy levels, hyperfine constants, electric-dipole matrix elements and static polarizabilities for alkali-metal atoms
• Sub-dekahertz ultraviolet spectroscopy of 199Hg+
• Relativistic many-body calculations of electric-dipole matrix elements, lifetimes and polarizabilities in rubidium
• Coherence of qubits based on single Ca${}^{+}$ ions
• How to realize a universal quantum gate with trapped ions
• Precision Measurement of the Lifetime of the 3d D_{5/2} state in 40Ca+
• Cold Trapped Ions as Quantum Information Processors
• Correlated many-body treatment of Breit interaction with application to cesium atomic properties and parity violation
• Inconsistencies between lifetime and polarizability measurements in Cs
• Lifetime measurement of the metastable 3d 2D5/2 state in the 40Ca+ ion using the shelving technique on a few-ion string
• Metastable level lifetimes from electron-shelving measurements with ion clouds and single ions
• Search for correlation effects in linear chains of trapped ions

Cited by in corpus (44)

• Quantum computing with trapped ions
• A Michelson-Morley Test of Lorentz Symmetry for Electrons
• Heralded single photon absorption by a single atom
• Blackbody radiation shift, multipole polarizabilities, oscillator strengths, lifetimes, hyperfine constants, and excitation energies in Ca+
• Magic wavelengths for the np-ns transitions in alkali-metal atoms
• Lifetime measurements of the 5d states of rubidium
• Entanglement-based dc magnetometry with separated ions
• Blackbody radiation shift in a 43Ca+ ion optical frequency standard
• Precision Measurement Method for Branching Fractions of Excited P1/2 States Applied to 40Ca+
• Atomic data from the Iron Project. LXIV. Radiative transition rates and collision strengths for Ca II
• Rydberg excitation of trapped cold ions: A detailed case study
• Measurement of dipole matrix elements with a single trapped ion
• Dynamic polarizabilities for the low lying states of Ca+
• Charge-exchange collisions between ultracold fermionic lithium atoms and calcium ions
• Rydberg excitation of a single trapped ion
• Achieving translational symmetry in trapped cold ion rings
• Theoretical study of lifetimes and polarizabilities in Ba+
• Raman spectroscopy of a single ion coupled to a high-finesse cavity
• Accurate determination of electric-dipole matrix elements in K and Rb from Stark shift measurements
• Improved Test of Local Lorentz Invariance from a Deterministic Preparation of Entangled States
• Electric Quadrupole Moments of Metastable States of Ca+, Sr+, and Ba+
• Heralded photonic interaction between distant single ions
• Measurement of the branching fractions and lifetime of the $5D_{5/2}$ level of Ba${}^{+}$
• Forbidden M1 and E2 transitions in monovalent atoms and ions
• Towards Rydberg quantum logic with trapped ions
• Radiative Transition Properties of Singly Charged Magnesium, Calcium, Strontium and Barium Ions
• Relativistic many-body calculations of the Stark-induced amplitude of the 6P1/2 -7P1/2 transition in thallium
• Ultrafast coherent excitation of a Ca${}^{+}$ ion
• Precision Measurement of the Quadrupole Transition Matrix Element in a Single Trapped ${}^{40}$Ca${}^{+}$
• Quantum gate using qubit states separated by terahertz
• Photon-mediated charge-exchange reactions between 39K atoms and 40Ca+ ions in a hybrid trap
• Angle-dependent magic wavelengths for the $4s_{1/2}\to 3d_{5/2,3/2}$ transitions of Ca${}^{+}$ ions
• Precision study of 6p 2Pj - 8s 2S1/2 relative transition matrix elements in atomic Cs
• Interaction of a Laser with a Qubit in Thermal Motion and its Application to Robust and Efficient Readout
• Conditions for anti-Zeno effect observation in free-space atomic radiative decay
• Relativistic semiempirical-core-potential calculations in Ca${}^{+}$, Sr${}^{+}$, and Ba${}^{+}$ ions on Lagrange meshes
• Precision measurement of the ionization energy of a single trapped ${}^{40}$Ca${}^{+}$ ion by Rydberg series excitation
• Measurement of Lande g factor of 5D5/2 state of BaII with a single trapped ion
• Quadrupole absorption rate for atoms in circularly-polarized optical vortices
• Light with orbital angular momentum interacting with trapped ions
• Nonreciprocal transition between two indirectly coupled energy levels
• Spontaneous Raman scattering out of a metastable atomic qubit
• Investigating Roles of Triple Excitations for High-precision Determination of Clock Properties of Alkaline Earth Metal Singly Charged Ions
• Endcap-Type Paul Trap for Precision Spectroscopy and Studies of Controlled Interactions