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Neutral Atoms in Optical Tweezers as Messenger Qubits for Scaling up a Trapped Ion Quantum Computer
Svetlana Kotochigova, Subhadeep Gupta, Boris Blinov
We propose to combine neutral atom and trapped ion qubits in one scalable modular architecture that uses shuttling of individual neutral atoms in optical tweezers to realize atomic…
Quantum micro-mechanics with ultracold atoms
Thierry Botter, Daniel Brooks, Subhadeep Gupta +5
In many experiments isolated atoms and ions have been inserted into high-finesse optical resonators for the study of fundamental quantum optics and quantum information. Here, we in…
Cavity Nonlinear Optics at Low Photon Numbers from Collective Atomic Motion
Subhadeep Gupta, Kevin L. Moore, Kater W. Murch +1
We report on Kerr nonlinearity and dispersive optical bistability of a Fabry-Perot optical resonator due to the displacement of ultracold atoms trapped within. In the driven resona…
Observation of quantum-measurement backaction with an ultracold atomic gas
Kater W. Murch, Kevin L. Moore, Subhadeep Gupta +1
Current research on micro-mechanical resonators strives for quantum-limited detection of the motion of macroscopic objects. Prerequisite to this goal is the observation of measurem…
Probing the quantum state of a guided atom laser pulse
Kevin L. Moore, Subhadeep Gupta, Kater W. Murch +1
We describe bichromatic superradiant pump-probe spectroscopy as a tomographic probe of the Wigner function of a dispersing particle beam. We employed this technique to characterize…