Martin Ibrügger
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View article: Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic Molecules
Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic Molecules Open
Polar polyatomic molecules provide an ideal but largely unexplored platform to encode qubits in rotational states. Here, we trap cold (100–600 mK) formaldehyde (H2CO) inside an electric box and perform a Ramsey-type experiment to observe l…
View article: Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic Molecules
Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic Molecules Open
Polar polyatomic molecules provide an ideal but largely unexplored platform to encode qubits in rotational states. Here, we trap cold (100-600 mK) formaldehyde (H$_2$CO) inside an electric box and perform a Ramsey-type experiment to observ…
View article: High-Resolution “Magic”-Field Spectroscopy on Trapped Polyatomic Molecules
High-Resolution “Magic”-Field Spectroscopy on Trapped Polyatomic Molecules Open
Rapid progress in cooling and trapping of molecules has enabled first experiments on high-resolution spectroscopy of trapped diatomic molecules, promising unprecedented precision. Extending this work to polyatomic molecules provides unique…
View article: High-resolution spectroscopy on cold electrically trapped formaldehyde
High-resolution spectroscopy on cold electrically trapped formaldehyde Open
We present precision spectroscopy on electrically trapped formaldehyde (H$_2$CO), demonstrating key attributes which will enable molecular spectroscopy with unprecedented precision. Our method makes use of a microstructured electric trap w…
View article: An experimental toolbox for the generation of cold and ultracold polar molecules
An experimental toolbox for the generation of cold and ultracold polar molecules Open
Cold and ultracold molecules enable fascinating applications in quantum science. We present our toolbox of techniques to generate the required molecule ensembles, including buffergas cooling, centrifuge deceleration and optoelectrical Sisy…
View article: Optoelectrical Cooling of Polar Molecules to Submillikelvin Temperatures
Optoelectrical Cooling of Polar Molecules to Submillikelvin Temperatures Open
We demonstrate direct cooling of gaseous formaldehyde (H2CO) to the microkelvin regime. Our approach, optoelectrical Sisyphus cooling, provides a simple dissipative cooling method applicable to electrically trapped dipolar molecules. By re…