Spin relaxation of the $^{171}$ Yb $^{3+}$ ion in the Y $_{2}$ $^{28}$ SiO $_{5}$ crystalSpin relaxation of the $^{171}$Yb$^{3+}$ ion in the Y$_{2}$$^{28}$SiO$_{5}$ crystal

R. F. Likerov, V. F. Tarasov, Andrey A. Sukhanov +4 more

Magnetic resonance in solidsJan 1, 20202 citations

Engineering programmable spin interactions in a trapped ion quantum simulator with holographic single-ion addressing

Chung-You Shih, Fereshteh Rajabi, Ashok Ajoy +6 more

Bulletin of the American Physical SocietyMay 30, 20180 citations

Individual Addressing with Trapped Yb + Ions

M. Johanning, A. Braun, Vladimir Elman +2 more

Recently it has been shown that the simulation of one quantum system by means of observing the dynamics of another suitably tailored quantum system can be experimentally far less demanding than universal quantum computation. A system of pair-wise coupled spins described by a Heisenberg model, or a variant thereof, is particularly useful for quantum simulations that in turn are relevant, for instance, for condensed matter physics. We work on the implementation of a pseudo-spin many-body system that will serve as a well controlled prototype system and will allow for the exploration of quantum simulations: in a particular type of ion trap individual atomic ions interact via an adjustable pseudo-spin-spin coupling and, in addition, each spin is individually accessible, thus providing us with an "ion spin molecule". An important milestone towards realizing such ion spin molecules is the individual addressing of a particular spin employing a spatially varying magnetic field. We demonstrate for the first time individual addressing of ions using radio frequency radiation. Yb+ions are confined in a linear Paul trap and laser cooled such that they form a linear Coulomb crystal. Then, an RF-optical double resonance experiment is performed.Recently it has been shown that the simulation of one quantum system by means of observing the dynamics of another suitably tailored quantum system can be experimentally far less demanding than universal quantum computation. A system of pair-wise coupled spins described by a Heisenberg model, or a variant thereof, is particularly useful for quantum simulations that in turn are relevant, for instance, for condensed matter physics. We work on the implementation of a pseudo-spin many-body system that will serve as a well controlled prototype system and will allow for the exploration of quantum simulations: in a particular type of ion trap individual atomic ions interact via an adjustable pseudo-spin-spin coupling and, in addition, each spin is individually accessible, thus providing us with an "ion spin molecule". An important milestone towards realizing such ion spin molecules is the individual addressing of a particular spin employing a spatially varying magnetic field. We demonstrate for the first time individual addressing of ions using radio frequency radiation. Yb+ions are confined in a linear Paul trap and laser cooled such that they form a linear Coulomb crystal. Then, an RF-optical double resonance experiment is performed.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)Jun 1, 20070 citations

When precision matters: quantum gates and metrology with $^{171}$ Yb $^+$ ionsWhen precision matters: quantum gates and metrology with $^{171}$Yb$^+$ ions

Christof Wunderlich

Bulletin of the American Physical SocietyJun 4, 20200 citations

Simulating Quantum Spin Models with Trapped Ytterbium Ions $^1$ Simulating Quantum Spin Models with Trapped Ytterbium Ions$^1$

M.-S. Chang, K. Kim, S. É. Korenblit +5 more

Bulletin of the American Physical SocietyMay 29, 20080 citations

A quantum byte with 10 5 cross-talk for fault-tolerant quantum computing

Ch. Piltz, Ch. Wunderlich

The addressing of a particular qubit within a quantum register is a key prerequisite for scalable quantum computing. We demonstrate addressing of individual qubits within a quantum byte (eight qubits) and measure the error induced in non-addressed qubits (cross-talk) associated with the application of single-qubit gates. This cross-talk is on the order of $10^{-5}$ breaching the threshold for fault-tolerant quantum computing. The quantum byte is implemented using $^{171}$ Yb $^+$ ions confined in a Paul trap where a static magnetic gradient field is applied that lifts the hyperfine qubits' degeneracy. Hyperfine qubits are individually addressed using microwave radiation. In addition, we demonstrate a method for addressing individual qubits where an appropriate choice of addressing frequency and microwave pulse duration allows for further lowering cross-talk.The addressing of a particular qubit within a quantum register is a key prerequisite for scalable quantum computing. We demonstrate addressing of individual qubits within a quantum byte (eight qubits) and measure the error induced in non-addressed qubits (cross-talk) associated with the application of single-qubit gates. This cross-talk is on the order of $10^{-5}$ breaching the threshold for fault-tolerant quantum computing. The quantum byte is implemented using $^{171}$Yb$^+$ ions confined in a Paul trap where a static magnetic gradient field is applied that lifts the hyperfine qubits' degeneracy. Hyperfine qubits are individually addressed using microwave radiation. In addition, we demonstrate a method for addressing individual qubits where an appropriate choice of addressing frequency and microwave pulse duration allows for further lowering cross-talk.

Mar 31, 20140 citations

Adjustable Spin-Spin Interaction with

^{171}

^+

ions and Addressing of a Quantum Byte

Spin relaxation of the

^{171}

^{3+}

ion in the Y

_{2}

^{28}

SiO

_{5}

crystal

When precision matters: quantum gates and metrology with

^{171}

^+

ions

Simulating Quantum Spin Models with Trapped Ytterbium Ions

^1

10^{-5}

breaching the threshold for fault-tolerant quantum computing. The quantum byte is implemented using

^{171}

^+

ions confined in a Paul trap where a static magnetic gradient field is applied that lifts the hyperfine qubits' degeneracy. Hyperfine qubits are individually addressed using microwave radiation. In addition, we demonstrate a method for addressing individual qubits where an appropriate choice of addressing frequency and microwave pulse duration allows for further lowering cross-talk.