The development of quantum networking promises multiple applications - quantum processor linking, secure communication, and connected arrays of entangled instruments - for human connection. The technology relies on the ability to send qubits across a network of quantum devices that are physically separated. Research in the field assures the scaling of computing power, secure encryption, and the most precise instrumentation to date.
Montana Instruments has developed a line of cryogenic products to meet the needs of quantum networking researchers and industry pioneers. Challenges in the field arise from single photon emission and detection, increasing transmission distances between nodes, and maintaining quantum memories. Several technologies are forging ahead with promising results, including diamond NV centers, spin/quantum dots, trapped atoms, and trapped ions.
From stand-alone laboratory experiments to expansive network builds, Montana Instruments has the products and manufacturing expertise to support demanding requirements. Leverage our cryogenics to aid in:
A high vacuum, ultra-stable mechanical and thermal sample environment is required to prevent any unwanted excitation of the qubit state. Superior optical access (low working distance and high numerical aperture) for spatially resolved laser excitation and high collection efficiency fluorescent readout is also necessary.
Mechanical stability is key to preventing energy transfer to qubits and distortion of the quantum state. Minimal system vibrations (<5nm) provide an ultra-stable environment.
Cryogenic environments minimize thermal excitation of qubits. Through cryo-pumping, our cryogenics environment achieves 1x10(-7) torr and limit molecular/atomic collision.
A low working distance objective with a high numerical aperture (0.9 NA, for example) provides a narrow excitation spot for individual trapped ions and provides high collection efficiency. Our objective is temperature controlled to minimize drift, which results in maximum data collection time and minimal experimental setup/alignment.
Additional window ports may be used to laser ablate (generate the ions) or laser cool (prepare the quantum states). Our cryogenic systems can be configured with multiple side windows and a top window. In addition, the availability of larger sample spaces make it easy to address the sample from multiple incident angles.
Many electrical feedthroughs may be required to either generate the RF trapping potential or operate the superconducting circuit. Our base panels can be used to add low frequency/DC wires in addition to coaxial wires for low loss and higher frequency signal (up to approximately 20GHz). The sample space is kept uncluttered through the use of specially designed low thermal heat load cryogenic ribbon cables.
Molecular and atomic collisions can excite qubits out of their quantum state or completely knock an ion out of the trap, destroying the quantum crystal. Our sample chamber reaches a base pressure of better than 1x10(-7) torr at base temperature due to cryo-pumping in the first cryocooler stage. The combination of cryogenics and high vacuum provides a stable environment for weeks or months at a time.