11 results about "Ion trap" patented technology

The invention discloses a quantum circuit optimization method and device and a medium, and the method comprises the steps: firstly determining a quantum logic gate in a to-be-optimized quantum circuit, and then converting the quantum logic gate into a target quantum logic gate which can be executed by an ion trap quantum chip, according to the method, a target quantum circuit which is equivalent to a to-be-optimized quantum circuit and comprises a target quantum logic gate is generated, the target quantum logic gate comprises an MS gate and an RPhi gate, a to-be-optimized common quantum circuit is compiled into the target quantum circuit which can be directly executed by an ion trap quantum chip by utilizing a quantum logic gate conversion and combination rule, and the target quantum logic gate is converted into the target quantum circuit which can be directly executed by the ion trap quantum chip. The number of quantum logic gates in the target quantum circuit is reduced, the depth of the optimized target quantum circuit is smaller, and a basis is provided for calculation simulation of a common quantum circuit on an ion trap quantum chip.

The utility model provides a kind of electron beam ion trap system, it is related to ion extraction technical field, the system includes: electron beam ion trap device ontology, vacuum chamber, permanent magnet module, vacuum module and gas injection module;Electron beam ion trap device ontology is set in the inside of vacuum chamber;Permanent magnet module is set around vacuum chamber, for providing magnetic field for electron beam ion trap device ontology.The utility model provides electron beam ion trap system, permanent magnet module is used to provide magnetic field for electron beam ion trap device ontology, the above permanent magnet module is compared with high-temperature superconducting coil size smaller, can make the structure of electron beam ion trap system more compact, smaller, greatly expand the application scenario of electron beam ion trap system, and avoid using liquid nitrogen to cool high-temperature superconducting coil, can reduce the operating cost of electron beam ion trap system, can improve the operating safety of electron beam ion trap system.

An ion gate is provided for a mass spectrometer. A first electrode group comprises a number of guide electrodes arranged to form a multipole ion guide from a first end to a second end of the first electrode group. The ion guide is configured to receive an ion beam at its first end. The guide electrodes are configured to receive RF voltages to define a confining volume for the ion beam. A second electrode group comprises at least one gate electrode intersecting a guide electrode. The at least one gate electrode is adjacent to the first electrode group, outside the confining volume, and positioned between the first and second ends of the first electrode group. The at least one gate electrode is configured to receive a DC voltage that is switchable between a through DC voltage and a gate DC voltage.

The invention relates to the technical field of laser emission propellers, in particular to a motor Weishi-Qi-Nu-Pu interstellar laser communication ion trap laser emission propeller, which is characterized in that a stored propellant collides with electrons under the action of high voltage through a plasma former to form a plasma flow, and the plasma flow is subjected to ionization acceleration; according to the invention, laser and plasma are combined to form a high-energy high-speed particle flow, then the high-energy high-speed particle flow is ejected at a high speed to generate a reaction thrust so as to push the rocket to move, and the laser and the plasma are combined to provide propelling power with high specific impulse, high efficiency and long service life for a rocket detector. Therefore, the technical problems that a launching propeller used by an existing rocket propelling system adopts chemical fuel to drive a rocket to lift off, the launching cost is high, the load is low, and the launching operation running mode is complex are solved.

Aspects of the present disclosure describe techniques for using a parabolic Cassegrain-type reflector for ablation. For example, a system for ablation loading of a trap is described that includes a reflector having a hole aligned with a loading aperture of the trap, and an atomic source positioned at a focal point of the reflector, where one or more laser beams are reflected from a reflective front side of the reflector and focused on a surface of the atomic source to produce an atomic plume, and the atomic plume once produced passing through the hole in the reflector and through a loading aperture of the trap for loading the trap. A method for ablation loading of a trap within a chamber in a trapped ion system is also described.

A method for applying a quantum gate operation to a qubit register with a plurality of qubits (q1, q2, q3, q4) is given, wherein each qubit (q1, q2, q3, q4) is represented by an ion enclosed in a processing region of an ion trap (2), and wherein a magnetic field gradient is applied along the processing region, comprising: - Preparing the qubits (q1, q2, q3, q4) in a first manifold, where a transition within the first manifold is independent of the magnetic field gradient, and - Recoding of at least one qubit (q1, q2, q3, q4) with a recoding signal to at least one operative qubit in a second manifold that differs from the first manifold, wherein a transition within the second manifold depends on the magnetic field gradient, and - Applying the quantum gate operation to the qubit register, wherein at least one operational qubit performs the applied quantum gate operation. Additionally, a system (1), a computer program and a computer-readable storage medium are specified.

The application relates to a system, method and electronic device for compensating second-order Doppler frequency shift. The system comprises a current source, a controller and two parallel and coaxial current-carrying rings, the two current-carrying rings are arranged on both sides of an ion trap, and a current-carrying coil is wound on each current-carrying ring; the current source is connected with the current-carrying coil wound on each current-carrying ring; the controller is in communication connection with the current source; the controller is used for controlling the current source to input excitation currents with opposite flowing directions into the current-carrying coils of the two current-carrying rings in the case that the ion trap is a multi-ion system, so as to generate a gradient magnetic field at the midpoint of the line connecting the centers of the two current-carrying rings; and the second-order Zeeman frequency shift generated by the gradient magnetic field is used for compensating the second-order Doppler frequency shift. By using the system, the process of reducing the second-order Doppler effect can be simplified.

The invention provides an electron beam ion trap system and a high ionization state ion extraction method, and relates to the technical field of ion extraction, the system comprises an electron beam ion trap device body, a vacuum chamber, a permanent magnet module, a vacuum module and a gas injection module; the electron beam ion trap device body is arranged in the vacuum chamber; the permanent magnet module is arranged around the vacuum chamber and is used for providing a magnetic field for the electron beam ion trap device body. According to the electron beam ion trap system and the high-ionization-state ion extraction method provided by the invention, the permanent magnet module is adopted to provide the magnetic field for the electron beam ion trap device body, and the size of the permanent magnet module is smaller than that of a high-temperature superconducting coil, so that the electron beam ion trap system is more compact in structure and smaller in size; the application scene of the electron beam ion trap system is greatly expanded, liquid nitrogen is prevented from cooling the high-temperature superconducting coil, the operation cost of the electron beam ion trap system can be reduced, and the operation safety of the electron beam ion trap system can be improved.

A method of performing a quantum gate operation in an ion-trap quantum computing system includes identifying one or more error mechanisms that cause quantum computing errors in a quantum gate operation on a first trapped ion of an ion chain that includes a plurality of trapped ions, wherein the quantum gate operation is performed by applying a first Raman laser beam and a second Raman laser beam; calculating a first amplitude of the first Raman laser beam and a second amplitude of the second Raman laser beam such that effects of the identified one or more error mechanisms are addressed; and applying the first Raman laser beam with the calculated first amplitude and the second Raman laser beam with the calculated second amplitude on the first trapped ion to perform the quantum gate operation on the first trapped ion.

A method of performing a computation using a quantum computer, comprising modulating a motional mode structure of a plurality of trapped ions, each of the plurality of trapped ions having two frequency split states defining a qubit; computing a function of detuning frequency and a function of amplitude of a laser pulse that will cause an entangling interaction between a pair of the plurality of trapped ions; and performing a quantum computation in the quantum computer by applying a gate duration on the pair of trapped ions with the laser pulse having the computed function of detuning frequency and the function of amplitude.

A method for applying a quantum gate operation to a qubit register with a plurality of qubits (q1, q2, q3, q4) is specified, wherein each qubit (q1, q2, q3, q4) is represented by an ion confined in a processing region of an ion trap (2), and wherein a magnetic field gradient is applied along the processing region, comprising: - preparing the qubits (q1, q2, q3, q4) in a first manifold, wherein a transition within the first manifold is not dependent on the magnetic field gradient, and - recoding at least one qubit (q1, q2, q3, q4) with a recoding signal to at least one operational qubit in a second manifold different to the first manifold, wherein a transition within the second manifold is dependent on the magnetic field gradient, and - applying the quantum gate operation to the qubit register, wherein the at least one operational qubit performs the applied quantum gate operation. Additionally, a system (1), a computer program and a computer-readable storge medium are specified.