Quantum Non-Demolition Measurement on the Spin Precession of Laser-Trapped ${}^{171}$Yb Atoms

Abstract

Quantum non-demolition (QND) measurement enhances the detection efficiency and measurement fidelity, and is highly desired for its applications in precision measurements and quantum information processing. We propose and demonstrate a QND measurement scheme for the spin states of laser-trapped atoms. On ${}^{171}$Yb atoms held in an optical dipole trap, a transition that is simultaneously cycling, spin-state selective, and spin-state preserving is created by introducing a circularly polarized beam of control laser to optically dress the spin states in the excited level, while leaving the spin states in the ground level unperturbed. We measure the phase of spin precession of $5\times 10^4$ atoms in a bias magnetic field of 20 mG. This QND approach reduces the optical absorption detection noise by $\sim$19 dB, to a level of 2.3 dB below the atomic quantum projection noise. In addition to providing a general approach for efficient spin-state readout, this all-optical technique allows quick switching and real-time programming for quantum sensing and quantum information processing.

References in corpus (49)

• Probing many-body dynamics on a 51-atom quantum simulator
• Optical Magnetometry
• Quantum metrology with nonclassical states of atomic ensembles
• Search for New Physics with Atoms and Molecules
• Single-Spin Addressing in an Atomic Mott Insulator
• Electric Dipole Moments of the Atoms, Molecules, Nuclei and Particles
• A precision measurement of the electron's electric dipole moment using trapped molecular ions
• Reduced Limit on the Permanent Electric Dipole Moment of ${}^{199}$Hg
• Entanglement-Enhanced Optical Atomic Clock
• Colloquium: Physics of optical lattice clocks
• Randomized benchmarking of single qubit gates in a 2D array of neutral atom qubits
• Quantum non-demolition measurement of a superconducting two-level system
• Deterministic Squeezed States with Joint Measurements and Feedback
• Alkaline earth atoms in optical tweezers
• Ultracold molecules for measuring the electron's electric dipole moment
• Squeezing the Collective Spin of a Dilute Atomic Ensemble by Cavity Feedback
• Measurements with prediction and retrodiction on the collective spin of 10^{11} atoms beat the standard quantum limit
• Universal gates based on targeted phase shifts in a 3D neutral atom array
• Ytterbium nuclear-spin qubits in an optical tweezer array
• Alkaline-Earth-Metal Atoms as Few-Qubit Quantum Registers
• 2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
• ${}^3$He-${}^{129}$Xe Comagnetometery using ${}^{87}$Rb Detection and Decoupling
• Cooling and entangling ultracold atoms in optical lattices
• Parallel single-shot measurement and coherent control of solid-state spins below the diffraction limit
• Assembly and coherent control of a register of nuclear spin qubits
• Universal gate operations on nuclear spin qubits in an optical tweezer array of ${}^{171}$Yb atoms
• Near-Unitary Spin Squeezing in ${}^{171}$Yb
• Coherent addressing of individual neutral atoms in a 3D optical lattice
• Error-transparent operations on a logical qubit protected by quantum error correction
• Improved limit on the ${}^{225}$Ra electric dipole moment
• Improved detection of small atom numbers through image processing
• Local optical control of the resonant dipole-dipole interaction between Rydberg atoms
• New Limit on the Permanent Electric Dipole Moment of ${}^{129}$Xe using ${}^3$He Comagnetometry and SQUID Detection
• Single-Atom Addressing in Microtraps for Quantum-State Engineering using Rydberg Atoms
• Parallel low-loss measurement of multiple atomic qubits
• Generation and Detection of Atomic Spin Entanglement in Optical Lattices
• Quantum nondemolition measurement of an electron spin qubit
• Nondestructive Fluorescent State Detection of Single Neutral Atom Qubits
• Repetitive quantum non-demolition measurement and soft decoding of a silicon spin qubit
• Analyzing the Rydberg-based omg architecture for ${}^{171}$Yb nuclear spins
• Quantum network of neutral atom clocks
• Measurement of the Electric Dipole Moment of ${}^{171}$Yb Atoms in an Optical Dipole Trap
• Projective measurement of a single nuclear spin qubit by using two-mode cavity QED
• Role of dressed-state interference in electromagnetically induced transparency
• Two-Color Magneto-Optical Trap with Small Magnetic Field for Ytterbium
• Quantum State Engineering using Single Nuclear Spin Qubit of Optically Manipulated Ytterbium Atom
• Laser-driven Sisyphus cooling in an optical dipole trap
• Statistical sensitivity of phase measurements via laser-induced fluorescence with optical cycling detection
• Magic Wavelengths of the Yb $6s^2{}^1{S}_0-6s6p{}^3{P}_1$ Intercombination Transition

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• Repetitive readout and real-time control of nuclear spin qubits in ${}^{171}$Yb atoms
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