Entanglement via rotational blockade of MgF molecules in a magic potential.

@article{Chae2020EntanglementVR,
  title={Entanglement via rotational blockade of MgF molecules in a magic potential.},
  author={Eunmi Chae},
  journal={Physical chemistry chemical physics : PCCP},
  year={2020}
}
  • E. Chae
  • Published 4 August 2020
  • Physics
  • Physical chemistry chemical physics : PCCP
Diatomic polar molecules are one of the most promising platforms of quantum computing due to their rich internal states and large electric dipole moments. Here, we propose entangling rotational states of MgF molecules in an optical tweezer array via strong electric dipole-dipole interactions. We employ two rotational states with the projection quantum number of the total angular momentum MF = 0 to maximize the dipole-dipole interaction with a given separation distance. The splitting of 1.27 kHz… 
1 Citations

Figures from this paper

Hyperfine-resolved optical spectroscopy of the A2Π ← X2Σ+ transition in MgF.
We report on hyperfine-resolved laser spectroscopy of the A2Π ← X2Σ+ transition of magnesium monofluoride (MgF), relevant for laser cooling. We recorded 25 rotational transitions with an absolute

References

SHOWING 1-10 OF 37 REFERENCES
Realizing a lattice spin model with polar molecules
With the recent production of polar molecules in the quantum regime [1, 2], long-range dipolar interactions are expected to facilitate the understanding of strongly interacting many-body quantum
Sideband cooling of molecules in optical traps
Sideband cooling is a popular method for cooling atoms to the ground state of an optical trap. Applying the same method to molecules requires a number of challenges to be overcome. Strong tensor
Quantum computation with trapped polar molecules.
TLDR
This design can plausibly lead to a quantum computer with greater, approximately > or = 10(4) qubits, which can perform approximately 10(5) CNOT gates in the anticipated decoherence time of approximately 5 s.
Extending Rotational Coherence of Interacting Polar Molecules in a Spin-Decoupled Magic Trap.
TLDR
Spin-decoupled magic trapping is demonstrated, which cancels first-order and reduces second-order differential light shifts, and density-dependent coherence times are observed, which can be explained by dipolar interactions in the bulk gas.
Quantum-State Controlled Chemical Reactions of Ultracold Potassium-Rubidium Molecules
TLDR
Experimental evidence for exothermic atom-exchange chemical reactions is reported, starting with an optically trapped near–quantum-degenerate gas of polar 40K87Rb molecules prepared in their absolute ground state.
Robust entangling gate for polar molecules using magnetic and microwave fields
Polar molecules are an emerging platform for quantum technologies based on their long-range electric dipole–dipole interactions, which open new possibilities for quantum information processing and
Ultracold polar molecules as qudits
We discuss how the internal structure of ultracold molecules, trapped in the motional ground state of optical tweezers, can be used to implement qudits. We explore the rotational, fine and hyperfine
An optical tweezer array of ultracold molecules
TLDR
By distinguishing between single and multiple molecules in the tweezers, the researchers were able to observe molecular collisions and observe ground-state collisions of laser-cooled molecules both in the presence and absence of near-resonant light.
Laser cooling of optically trapped molecules
Ultracold molecules are ideal platforms for many important applications, ranging from quantum simulation1–5 and quantum information processing 6,7 to precision tests of fundamental physics2,8–11.
Long-range interactions between polar alkali-metal diatoms in external electric fields
We computed the long-range interactions between two identical polar bialkali molecules in their rovibronic ground level for all ten species involving Li, Na, K, Rb, and Cs, using accurate quantum
...
...