Quantum Computing Using Polar Molecules

We investigate several aspects of realizing quantum computation using entangled polar molecules. We develop methods for realizing quantum computation in the gate model, the measurement-based model and the adiabatic model using polar molecules. Moreover, we explore the possibility of a novel quantum computing model built with coupled 2-level systems. The quantum coherent states formed by coupled 2-level systems have unique properties that have inspired numerous ideas in excitonic systems and spin systems.

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• Quantum Computation Using Arrays of N Polar Molecules in Pendular States

           Wie, Qi, Cao, Yudong, Friedrich, Bretislav, Kais, Sabre; et al
           ChemPhysChem: 17, 1-10, DOI: 10.1002/cphc.201600781 (2016)

• Prospects for Quantum Computing with an Array of Ultracold Polar Paramagnetic Molecules

           Karra, Malikarjun, Sharma, Ketan, Friedrich, Bretislav, Kais, Sabre
           Journal of Chemical Physics, 144, 094301 DOI: 10.1063/1.4942928 (2016)

• Infrared-dressed Entanglement of Cold Open-Shell Polar Molecules for Universal Matchgate Quantum Computing
  Herrera, Felipe; Cao, Yudong; Kais, Sabre
  New Journal of Physics, 16, 075001 (2014)

• Manipulation of molecules with electromagnetic fields
  Mikhail Lemeshko, Roman Krems, John M. Doyle, Sabre Kais
  Molecular Physics, 111:12-13, 1648-1682 (2013)

• Implementation of quantum logic gates using polar molecules in pendular states
  Jing Zhu, Sabre Kais, Qi Wei, Dudley Herschbach, Bretislav Friedrich
  Journal of Chemical Physics, 138, 024104 (2013)

• Entanglement of polar symmetric top molecules as candidate qubits
  Qi Wei, Sabre Kais, Bretislav Friedrich, Dudley Herschbach
  Journal of Chemical Physics, 135, 154102 (2011)

• Supersymmetry identifies molecular Stark states whose eigenproperties can be obtained analytically
  Mikhail Lemeshko, Mustafa Mustafa, SabreKais, Bretislav Friedrich
  New Journal of Physics, 13, (2011) 063036

• Supersymmetric factorization yields exact solutions to the molecular Stark-effect problem for stretched states
  Mikhail Lemeshko, Mustafa Mustafa, Sabre Kais and Bretislav Friedrich,
  Phys. Rev. A 83, 043415 (2011).

• Entanglement of polar molecules in pendular states
  Qi Wei, Sabre Kais, Bretislav Friedrich and Dudley Herschbcah
  J. Chem. Phys. 134, 124107 (2011).

• Communications: Entanglement switch for dipole arrays 

           Q. Wei, S. Kais, and YP Chen 
           J. Chem. Phys. 132, 121104 (2010).