Abstract: In a general aspect, a quantum control device includes a substrate having a substrate surface. An insulator layer is disposed over the substrate surface and defines a cavity. The insulator layer includes an insulator surface that defines an opening to the cavity. The quantum control device also includes a field-responsive layer over the insulator surface. The field-responsive layer includes a target region that resides over the opening to the cavity. The quantum control device additionally includes a projection extending from the substrate into the cavity and terminating at a tip. The projection is configured to produce an electric field that interacts with a quantum state in the target region. The tip resides in the cavity and configured to concentrate the electric field produced by the projection.

Abstract: In a general aspect, quantum electrodynamic (QED) interactions are generated using a parabolic transmission mirror. In some aspects, a system for generating a QED interaction includes an optical pulse generator and a vacuum chamber. The vacuum chamber includes a parabolic transmission mirror in an ultra-high vacuum region within the vacuum chamber. The parabolic transmission mirror is configured to produce the QED interaction in the ultra-high vacuum region based on an optical pulse from the optical pulse generator. The parabolic transmission mirror includes an optical inlet at a first end and an optical outlet at a second, opposite end. The parabolic transmission mirror also includes a parabolic reflective surface about an internal volume of the parabolic transmission mirror between the first and second ends. The parabolic reflective surface extends from the optical inlet to the optical outlet and defines a focal point outside the internal volume of the parabolic transmission mirror.

Abstract: In a general aspect, quantum electrodynamic (QED) interactions are generated using a parabolic transmission mirror. In some aspects, a system for generating a QED interaction includes an optical pulse generator and a vacuum chamber. The vacuum chamber includes a parabolic transmission mirror in an ultra-high vacuum region within the vacuum chamber. The parabolic transmission mirror is configured to produce the QED interaction in the ultra-high vacuum region based on an optical pulse from the optical pulse generator. The parabolic transmission mirror includes an optical inlet at a first end and an optical outlet at a second, opposite end. The parabolic transmission mirror also includes a parabolic reflective surface about an internal volume of the parabolic transmission mirror between the first and second ends. The parabolic reflective surface extends from the optical inlet to the optical outlet and defines a focal point outside the internal volume of the parabolic transmission mirror.

Abstract: In a general aspect, a chirped optical pulse is compressed by operation of diffraction gratings and a dispersive mirror having a smooth reflective surface. In some aspects, a chirped pulse laser system includes a programmable optical dispersive filter (PODF) operable to modify a spectral phase of optical pulses and a pulse compressor that receives an optical pulse based on an output of the PODF. The pulse compressor includes optical elements in a vacuum chamber. The optical elements define an optical path through the pulse compressor, and are arranged to disperse the optical pulse in the optical path. The optical elements include diffraction gratings and a dispersive mirror, which has a smooth reflective surface that defines a portion of the optical path.

Abstract: In a general aspect, a chirped optical pulse is compressed by operation of diffraction gratings and a dispersive mirror having a smooth reflective surface. In some aspects, a chirped pulse laser system includes a programmable optical dispersive filter (PODF) operable to modify a spectral phase of optical pulses and a pulse compressor that receives an optical pulse based on an output of the PODF. The pulse compressor includes optical elements in a vacuum chamber. The optical elements define an optical path through the pulse compressor, and are arranged to disperse the optical pulse in the optical path. The optical elements include diffraction gratings and a dispersive mirror, which has a smooth reflective surface that defines a portion of the optical path.