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Manganese pentacarbonyl bromide as candidate for a molecular qubit system operated in the infrared regime
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10.1063/1.2141615
/content/aip/journal/jcp/123/24/10.1063/1.2141615
http://aip.metastore.ingenta.com/content/aip/journal/jcp/123/24/10.1063/1.2141615

Figures

Image of FIG. 1.
FIG. 1.

Mid-IR spectrum of in .

Image of FIG. 2.
FIG. 2.

: arrows indicate the displacement vectors of the mode (left) and the -polarized component of the mode (right).

Image of FIG. 3.
FIG. 3.

(a) PES of the qubit system; (b) definition of and (displacement of the countervibrating groups’ centers of mass), which are used as coordinates for the PES as well as [(c) and (d)] the surface of dipole moment for each qubit; for all three surfaces: and .

Image of FIG. 4.
FIG. 4.

Optimized laser pulse for gate (a) field as well as cross-correlated frequency-resolved optical gating (XFROG) diagram and (b) switching mechanisms of the four possible initial states; dashed lines show the first overtones ∣02⟩ and ∣12⟩, respectively.

Image of FIG. 5.
FIG. 5.

Optimized laser pulse for the two-dimensional gate (a) field as well as XFROG diagram and (b) switching mechanisms of the four possible initial states; dashed lines show the first overtones ∣02⟩ and ∣12⟩, respectively.

Image of FIG. 6.
FIG. 6.

Optimized laser pulse for the two-dimensional gate (top) field representation and (middle) and (bottom) example mechanisms on initial states (99.98% efficiency) and (99.91% efficiency); the two other transitions are equivalent.

Image of FIG. 7.
FIG. 7.

Optimized laser pulse for the two-dimensional gate (top) field representation and (middle) and (bottom) example mechanisms for transitions (forward 99.94% and backward 99.88% efficiencies); the other transitions are similar.

Image of FIG. 8.
FIG. 8.

Mask function of pulse [Fig. 4(a)] for frequency shaping in a control experiment (upper row); the lower row shows data for the fit with Gaussian subpulses [Fig. 9(a)]: (a) transmission function and (b) phase of the mask; (c) Fourier transform spectrum.

Image of FIG. 9.
FIG. 9.

[(a) and (b)] Reconstruction of the pulse [Fig. 4(a)] by Gaussian subpulses: (top) laser fields [(a) at the difference plot of optimized and reconstructed field], (middle) XFROG representation, and (bottom) example mechanisms for the transition, first overtone ∣12⟩ plotted as dashed line.

Tables

Generic image for table
Table I.

Energies of selected eigenfunctions in the 2D model in comparison with experimental data.

Generic image for table
Table II.

Optimized transitions for the CNOT and the NOT gate each on the second qubit.

Generic image for table
Table III.

Optimized transitions for the II gate on the second qubit.

Generic image for table
Table IV.

Optimized transitions for the Hadamard gate on the first qubit.

Generic image for table
Table V.

Overview over the 2D logical quantum gates optimized for .

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/content/aip/journal/jcp/123/24/10.1063/1.2141615
2005-12-29
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Manganese pentacarbonyl bromide as candidate for a molecular qubit system operated in the infrared regime
http://aip.metastore.ingenta.com/content/aip/journal/jcp/123/24/10.1063/1.2141615
10.1063/1.2141615
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