公开(公告)号：EP4383484A1

公开(公告)日：2024-06-12

申请号：EP22306792.7

申请日：2022-12-06

Applicant: Pasqal

Inventor： DAREAU, Alexandre ,  SIGNOLES, Adrien

IPC: H01S3/00 ,  G06N10/40 ,  H01S3/067 ,  H01S3/23 ,  H01S3/16

CPC classification number: H01S3/0092 ,  H01S3/1616 ,  H01S3/2391 ,  G06N10/40 ,  H01S3/1618 ,  H01S3/1608 ,  H01S3/067 ,  G06N10/00

Abstract: The present disclosure relates to a laser apparatus for excitation of Strontium atoms in a quantum processor. It comprises a fiber laser source (111) for emitting light at a wavelength of about 1064 nm; an Er-doped fiber laser (112) for emitting light at a wavelength of about 1534 nm; a fiber-coupled SHG device (114) configured to receive said light at about 1064 nm to produce light at a wavelength of about 532 nm; a fiber-coupled DFG device (113) configured to receive said light at about 1534 nm and said light at about 532 nm and produce light at a wavelength of about 813 nm; a fiber-coupled SFG device (115) configured to receive said light at about 813 nm and light at about 1064 nm partially transmitted by said fiber-coupled SHG device and produce light (15) at a wavelength of about 461 nm and partially transmit the light at about 813 nm. The transmitted light at about 813 nm (10) is configured to produce a dipolar trapping beam and the light at about 461 nm is configured to produce first MOT laser beams.

公开(公告)号：EP4383143A1

公开(公告)日：2024-06-12

申请号：EP23306300.7

申请日：2023-07-27

Applicant: Pasqal

Inventor： SIGNOLES, Adrien ,  DAREAU, Alexandre ,  LASSABLIERE, Lucas ,  NGUYEN, Catherine ,  FAVIER, Pierre

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: There is presented a method for outputting at least first and second electromagnetic, EM, signals for respectively interacting with spatially separated first and second matter particles in an interaction region. The matter particles act as qubits for use with a quantum computation. The interaction of the EM signals with the qubits is associated with a Hamiltonian operator comprising at least a first and a second element. EM radiation is generated using an EM source. The EM radiation is modulated by the with a first modulator configured to temporally modulate the EM radiation within a computation time period. The first modulator is associated with the first element of the Hamiltonian operator. The EM radiation is modulated with a second modulator configured to modulate the EM radiation such that the first EM signal is spatially separate to the second EM signal in the interaction region. The second modulator is associated with the second element of the Hamiltonian operator. The one or more EM signals are output based on the modulated EM radiation, to the plurality of matter particles.

公开(公告)号：EP4383141A1

公开(公告)日：2024-06-12

申请号：EP22306829.7

申请日：2022-12-08

Applicant: Pasqal

Inventor： SIGNOLES, Adrien ,  DAREAU, Alexandre ,  BEGUIN, Lucas

IPC: G06N10/40

CPC classification number: G06N10/40

Abstract: Methods and systems for optically addressing qubits in a qubit array, are described wherein the method comprises configuring micromirrors of at least a first and second micromirror device based on addressing information identifying one or more first qubits and one or more second qubits in the qubit array that need to be optically addressed, generating a structured light beam which is spatially structured in accordance with the spatial arrangement of the qubits in the qubit array and the spatial arrangement of micromirrors of the first and second micromirror device and which is temporally structured based on a polarization or phase of the structure light beam; exposing the first micromirror device with part of the structured light beam that is associated with a first polarisation or first phase and the second micromirror device with a part of the structured light beam that is associated with a second polarisation or second phase; and, exposing the one or more first qubits identified with a first plurality of focused light beams formed based on spatially structured light originating from the first micromirror device and exposing the one or more second qubits with a second plurality of focused light beams formed based spatially structured light originating from the second micromirror device.