In an undulator magnet array, an upper magnet array is formed by coupling an upper shift magnet array and an upper reference magnet array, and a lower magnet array is formed by coupling a lower reference magnet array and lower shift magnet array arranged so as to face the magnet arrays. With reference to a state where the amplitudes of periodic magnetic fields that can be formed by the upper magnet array and the lower magnet array are maximized, the upper shift magnet array is shifted of a period to the left as seen from the lower reference magnet array and the lower shift magnet array is shifted of a period to the left as seen from the upper reference magnet array.

Aspects of the present disclosure relate to efficiently trapping ions for QIP systems. A system may include an ablation laser beam source and an ion trapping structure including: an enclosure with an orifice, a source material that is arranged in the enclosure and receives an ablation laser pulse to provide a plume of atoms. A system may include at least one LED that is arranged in the enclosure and onto which at least a portion of the plume of atoms is deposited, wherein the at least one LED is configured to emit light that desorbs at least one deposited atom through the orifice. A system may include an ion trap with a gap through which the at least one deposited atom desorbed travels from the orifice, and a laser beam source configured to generate a laser beam towards the at least one deposited atom creating a trapped ion.

A device may include an atomic cell with a first wall. A device may include a photonic integrated circuit positioned parallel to the atomic cell first wall, the photonic integrated circuit comprising: a set of three grating emitters mounted on the photonic integrated circuit around a circumference with a spacing of around 120 degrees, wherein each grating emitter is etched to emit free-space beams on to the first wall of the atomic cell at a selected angle, wherein the selected angle in combination with the circumference results in the set of free-space beams intersecting at a location inside the atomic cell.

The present invention relates to a device (10) for generating optical tweezers comprising a laser beam source (11) for generating a laser beam (12) and at least one acousto-optic deflector (13) for generating an array (15) of partial beams (14) of the laser beam (12), wherein the array (15) comprises rows (15c). The device (10) further comprises a stepped mirror unit (16) comprising at least a first stepped mirror (25) for reducing a row distance (15d) of the partial beams (14) of the array (15), wherein the first stepped mirror (25) comprises mirrors (30), a stepped distance (25a) between adjacent mirrors (30) and a stepped height (25b).

A micro-fabricated device for controlling trapped ions includes a first substrate having a main surface. A structured first metal layer is disposed over the main surface of the first substrate. The structured first metal layer includes electrodes of at least one ion trapping zone configured to trap an ion in a space above the structured first metal layer. A dielectric element is fixedly attached to the first substrate. The dielectric element includes at least one laser light path and a surface covered with a layer. The layer is an electrically conductive layer. The layer is optically transparent for the laser light. The layer is arranged between the at least one laser light path and the at least one ion trapping zone.

An apparatus useful for creating and measuring states of an entangled system, comprising a pair of interacting multi-level systems, each of systems comprising a state |g>, a state |r>, and state |r*>. One or more first electromagnetic fields excite a first transition between the ground state |g> and the state |r> to create an entangled system. One or more second electromagnetic fields are tuned between the state |r> and the intermediate state |r*> so that any population of the systems in |r*> are dark to a subsequent detection of a population in the systems in |g>, providing a means to distinguish the entangled system in the state |g> and the entangled system in the state |r>. In one or more examples, the systems comprise neutral Rydberg atoms.

Methods and controllers for reading a quantum state of an atomic object and/or qubit using coherent shelving are provided. A controller causes a first beam of a first wavelength and a second beam of a second wavelength to be incident on the qubit and causes a reading beam to be incident on the qubit. The first wavelength and the second wavelength are configured to couple a state of a qubit space of the qubit to a stable state. The stable state has a lifetime that is longer than a length of time required for performing a reading operation. The first beam and the second beam are generated by at least one manipulation source operated by at least one manipulation source driver of and/or in communication with and/or controlled by the controller.

Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems, and more particularly, for beam shaping for large aspect ratios with a single cylindrical lens. In some aspects, a QIP system includes a laser source, a cylindrical lens, and an ion trap. The laser source produces a Gaussian laser beam. The cylindrical lens is aligned with at least a portion of the laser beam and shapes the laser beam into a beam having an anamorphic shape. The ion trap includes a plurality of trapped ions addressable by the beam. The cylindrical lens orients the beam relative to the ion trap such that a fast axis of the beam is aligned with an axis of the plurality of trapped ions, and a slow axis of the beam is traverse to the plurality of trapped ions.

A cryostat socket for holding an ion trap device mounted on a substrate in a cryostat includes a frame having a heat removal surface configured to be thermally coupled to a laterally outer region of the device carrier. The cryostat socket further includes a cover configured to exert a compressive force on the front side of the device carrier when assembled with the frame, by which the rear side of the device carrier is thermally coupled to the heat removal surface.

The invention relates to a device for analyzing biological objects comprising a Raman spectroscopy system for capturing at least one Raman spectrum. The device comprises an arresting apparatus, which is designed to at least temporarily arrest the biological objects. An electronic computing apparatus is designed to determine a reaction of a biological object arrested by the arresting apparatus to at least one substance in accordance with an evaluation of the at least one Raman spectrum.