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lab temperature

atomic time





Spatial pattern observed in a nonlinear optical resonator. (pdf file) 















Quantum physics with atoms and


Mark Saffman Professor 


January 2019: Postdoc position available for experimental neutral atom quantum computing.


News from the lab:


March 2020:   Congratulations to Xiaoyu Jiang for winning a NSF-QISENET fellowship to work with Argonne National Lab on simulation of neutral atom quantum computin.           

April 2018: Congratulations to Juan Bohorquez for winning a NSF graduate fellwoship for Microwave to Optical Qubit Conversion with Single Rydberg Atoms.

Spectroscopy of the Cs 6s - 5d5/2 quadrupole transition in a vapor cell May 2017.


Holmium atoms in a 532 nm wavelength dipole trap April 2017


Cs MOT in 77K cryostat October 2015

MOT in cryostat





Recent papers:

qubit array Theory of long range interactions for Rydberg states attached to hyperfine split cores PRA (2018)

qubit array Reducing the sensitivity of Rydberg atoms to dc electric fields using two-frequency ac field dressing PRA (2018)

qubit array Parallel low-loss measurement of multiple atomic qubits PRL (2017)qubit array High-fidelity Rydberg quantum gate via a two-atom dark state PRA (2017)

qubit array Quantum computing with neutral atoms Physics Today (2017)


qubit array Microwave-to-optical frequency conversion using a cesium atom coupled to a superconducting resonator PRA (2017)


qubit arrayTwo-qubit gates using adiabatic passage of the Stark-tuned Förster resonances in Rydberg atoms PRA (2016)


qubit array Doubly magic trapping for Cs atom hyperfine clock transitions, PRL (2016)


qubit array Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges JPB (2016)

qubit arrayImproved error thresholds for measurement-free error correction PRL (2016)

qubit array High fidelity Rydberg blockade entangling gate using shaped, analytic pulses PRA (2016)


qubit array Long working distance bjective lenses for single atom trapping and imaging Rev. Sci. Instrum. (2016)

qubit arrayOptimized Coplanar Waveguide Resonators for a Superconductor–Atom Interface Appl. Phys. Lett. (2016)


qubit array Simulated quantum process tomography of quantum gates with Rydberg superatoms J. Phys. B (2016)


qubit array Grover search algorithm with Rydberg-blockaded atoms: Quantum Monte Carlo simulations J. Phys. B (2016)


qubit arrayComparison of Gaussian and super Gaussian laser beams for addressing atomic qubits Appl. Phys. B (2016)


qubit array Rydberg blockade, Förster resonances, and quantum state measurements with different atomic species PRA (2015)


qubit array A Rydberg blockade CNOT gate and entanglement in a 2D array of neutral atom qubits PRA (2015)


qubit array Coherence and Rydberg blockade of atomic ensemble qubits PRL (2015)


qubit array Randomized benchmarking of single qubit gates in a 2D array of neutral atom qubits PRL (2015), Physics synopsis


qubit array Measurement of Holmium Rydberg series through MOT depletion spectroscopy PRA (2015)



We are always looking for postdocs and graduate students interested in expanding the frontiers of quantum information processing and atomic physics.

Interested applicants should send a CV, statement of research interests, and names of two references to Mark Saffman.


Quantum computing curiosity


For more information on quantum computing research in Madison look here.

Research funded by:


Mark Saffman
Department of Physics
University of Wisconsin
1150 University Avenue
Madison, Wisconsin
53706, USA
office: 5330 Chamberlin

tlf: +1 608 265 5601
fax: +1 608 265 2334
msaffman wisc.edu

5323, 5329, 5335 Chamberlin
tlf: 608-265-7894

  visits since 8.april 2000

Cs MOT cryostat