JPWO2019051016A5 - - Google Patents

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JPWO2019051016A5
JPWO2019051016A5 JP2020536491A JP2020536491A JPWO2019051016A5 JP WO2019051016 A5 JPWO2019051016 A5 JP WO2019051016A5 JP 2020536491 A JP2020536491 A JP 2020536491A JP 2020536491 A JP2020536491 A JP 2020536491A JP WO2019051016 A5 JPWO2019051016 A5 JP WO2019051016A5
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キュービットを実現する量子物体のスケールで電磁放射を試料に結合する共振器であって、
導電性部材と、
前記部材に誘導性ループを画定する前記部材を通る開口部であって、前記試料を前記開口部内に少なくとも部分的に受け入れ可能な前記開口部と、
前記部材の境界と前記開口部との間に、ある長さを有する連続した屈曲した経路を画定する前記部材の細長いギャップと、を含み、
前記連続した屈曲した経路は、複数の経路セグメントと、前記経路セグメント間の方向の変化を含み、
前記導電性部材は、互いに入り組んだコンデンサを含み、前記互いに入り組んだコンデンサは複数の交差した脚部を含み、電流が前記複数の脚部のうち、交互になった脚部に沿って反対方向に流れて、対応する磁界が第１のオーダーまで打ち消し合い、
これにより、前記互いに入り組んだコンデンサの寄生インダクタンスが最小化されることを特徴とする共振器。 A resonator that couples electromagnetic radiation to a sample on the scale of a quantum object that realizes a qubit .
With conductive members
An opening through the member that defines an inductive loop in the member, wherein the sample is at least partially acceptable within the opening.
Includes an elongated gap in the member that defines a continuous curved path of length between the boundary of the member and the opening.
The continuous bent path includes a plurality of path segments and a change in direction between the path segments.
The conductive member comprises an intricate capacitor, the intricate capacitor comprises a plurality of intersecting legs, and an electric current is directed in opposite directions along the alternating legs of the plurality of legs. As it flows, the corresponding magnetic fields cancel each other up to the first order,
As a result, the resonator is characterized in that the parasitic inductance of the intricate capacitors is minimized . 前記導電性部材は、誘電体基板を覆う金属層を含むことを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the conductive member includes a metal layer covering a dielectric substrate. 前記導電性部材は、平面状であることを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the conductive member has a planar shape. 誘電材料であって、前記導電性部材の少なくとも一部を覆い、前記ギャップの少なくとも一部を埋める、前記誘電材料をさらに含むことを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the resonator is a dielectric material, further comprising the dielectric material, which covers at least a part of the conductive member and fills at least a part of the gap. 前記連続した屈曲した経路の前記長さは、前記共振器のキャパシタンスに比例し、前記ギャップの幅は、前記共振器のキャパシタンスに反比例することを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the length of the continuous bent path is proportional to the capacitance of the resonator, and the width of the gap is inversely proportional to the capacitance of the resonator. .. 複数の隣り合う経路セグメントと反転は、前記導電性部材に互いに入り組んだ構造を画定することを特徴とする請求項１に記載の共振器。 The resonator according to claim 1 , wherein the plurality of adjacent path segments and inversions define a structure in which the conductive member is intricately intertwined with each other. 前記経路は、少なくとも８つの方向の変化を含むことを特徴とする請求項１に記載の共振器。 The resonator according to claim 1 , wherein the path includes at least eight directional changes. 前記開口部の最大の横方向寸法は、前記ギャップの最小幅以下であることを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the maximum lateral dimension of the opening is equal to or less than the minimum width of the gap. １つまたは複数のキュービットの量子状態の測定及び変更の少なくとも１つのためのシステムであって、
請求項１に記載の共振器と、
前記開口部内に少なくとも部分的に位置する試料と、
前記共振器に適用可能な外部の磁界源と、前記共振器に適用可能で、前記試料に共振を誘導するように選択された周波数を有する電磁放射源と、を含むことを特徴とする前記システム。 A system for at least one measurement and modification of the quantum state of one or more qubits.
The resonator according to claim 1 and
With a sample that is at least partially located in the opening,
The system comprising an external magnetic field source applicable to the resonator and an electromagnetic radiation source applicable to the resonator and having a frequency selected to induce resonance in the sample. .. キュービットを実現する量子物体のスケールで試料の量子状態の測定及び変更の少なくとも１つのための方法であって、
部材の境界と前記開口部と間に、ある長さを有する連続した屈曲した経路を画定し、前記共振器の前記開口部と外縁との間に延びる連続した屈曲したギャップによって画定される、キャパシタンスを有するループギャップ共振器の開口部内に、前記試料の少なくとも一部を配置することと、
磁界と電磁放射とに前記試料を同時にさらすことと、
前記試料から共振信号を検出することと、を含み、
前記ループギャップ共振器は、導電性部材を含み、
前記開口部は、前記部材に誘導ループを画定する前記部材を貫通する開口部を含み、
前記連続した屈曲した経路は、複数の経路セグメントと前記経路セグメント間の方向の変化を含み、
前記導電性部材は、互いに入り組んだコンデンサを含み、前記互いに入り組んだコンデンサは複数の交差した脚部を含み、電流が前記複数の脚部のうち、交互になった脚部に沿って反対方向に流れて、対応する磁界が第１のオーダーまで打ち消し合い、
これにより、前記互いに入り組んだコンデンサの寄生インダクタンスが最小化されることを特徴とする方法。 A method for at least one of measuring and altering the quantum state of a sample at the scale of a quantum object that realizes a qubit .
Capacitance defined by a continuous curved path of length between the boundary of the member and the opening and defined by a continuous curved gap extending between the opening and the outer edge of the resonator. Placing at least a portion of the sample within the opening of a loop gap resonator with
Simultaneous exposure of the sample to a magnetic field and electromagnetic radiation,
Including detecting a resonance signal from the sample.
The loop gap resonator includes a conductive member and contains a conductive member.
The opening comprises an opening through the member defining an induction loop in the member.
The continuous bent path includes a plurality of path segments and a change in direction between the path segments.
The conductive member comprises an intricate capacitor, the intricate capacitor comprises a plurality of intersecting legs, and an electric current is directed in opposite directions along the alternating legs of the plurality of legs. As it flows, the corresponding magnetic fields cancel each other up to the first order,
This method is characterized in that the parasitic inductance of the intricate capacitors is minimized . キュービットを実現する量子物体のスケールで電磁放射を試料に結合する共振器であって、
表面を画定する導電性部材であって、前記表面上のエリアと、前記エリアの周囲の外側境界とを有し、前記表面に垂直な厚さを有する前記導電性部材と、
前記試料を受け入れる開口部であって、前記厚さ全体を通して延びる前記開口部と、
前記厚さ全体を通して、且つ、前記開口部を前記境界につなぐ連続した屈曲した経路に沿って延びる連続した細長いギャップであって、前記経路は、複数の隣り合う長さセグメントと前記長さセグメント間の方向の変化とを含む、前記ギャップと、を含み、
前記ギャップの幅と前記経路の長さとが、前記共振器のキャパシタンスを規定し、
前記導電性部材は、互いに入り組んだコンデンサを含み、前記互いに入り組んだコンデンサは複数の交差した脚部を含み、電流が前記複数の脚部のうち、交互になった脚部に沿って反対方向に流れて、対応する磁界が第１のオーダーまで打ち消し合い、
これにより、前記互いに入り組んだコンデンサの寄生インダクタンスが最小化されることを特徴とする共振器。 A resonator that couples electromagnetic radiation to a sample on the scale of a quantum object that realizes a qubit .
A conductive member that defines a surface and has an area on the surface and an outer boundary around the area, and has a thickness perpendicular to the surface.
An opening that receives the sample and extends through the entire thickness.
A continuous elongated gap extending through the entire thickness and along a continuous curved path connecting the opening to the boundary, the path between a plurality of adjacent length segments and the length segment. Includes said gaps, including, including changes in the direction of
The width of the gap and the length of the path define the capacitance of the resonator.
The conductive member comprises an intricate capacitor, the intricate capacitor comprises a plurality of intersecting legs, and an electric current is directed in opposite directions along the alternating legs of the plurality of legs. As it flows, the corresponding magnetic fields cancel each other up to the first order,
As a result, the resonator is characterized in that the parasitic inductance of the intricate capacitors is minimized . 前記表面は、平面状であることを特徴とする請求項１１に記載の共振器。 The resonator according to claim 11 , wherein the surface is flat. 方向の前記変化の１つまたは複数は、隣り合うセグメント間での方向の反転を含むことを特徴とする請求項１１に記載の共振器。 The resonator according to claim 11, wherein one or more of the changes in direction comprises reversing the direction between adjacent segments. 前記経路は、互いに入り組んだ構造を含むことを特徴とする請求項１１に記載の共振器。 The resonator according to claim 11 , wherein the path includes an intricate structure with each other. 誘電材料であって、前記誘電材料は、前記ギャップの少なくとも一部を埋めることを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the dielectric material is a dielectric material, wherein the dielectric material fills at least a part of the gap. 前記試料は、１つの磁性分子を含むことを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the sample contains one magnetic molecule. 前記試料は、１つの磁性分子を含むことを特徴とする請求項１０に記載の方法。 The method according to claim 10, wherein the sample contains one magnetic molecule. 前記試料は、１つの磁性分子を含むことを特徴とする請求項１１に記載の共振器。 The resonator according to claim 11, wherein the sample contains one magnetic molecule. 前記経路セグメント間の方向の変化は偶数であり、それにより、前記複数の脚のうちの隣接するものに沿った磁場の打ち消しをサポートすることを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the change in direction between the path segments is even, thereby supporting the cancellation of the magnetic field along the adjacent one of the plurality of legs. 前記経路セグメント間の方向の変化は偶数であり、それにより、前記複数の脚のうちの隣接するものに沿った磁場の打ち消しをサポートすることを特徴とする請求項１０に記載の方法。 10. The method of claim 10, wherein the change in direction between the path segments is even, thereby supporting the cancellation of magnetic fields along adjacent ones of the plurality of legs. 前記経路セグメント間の方向の変化は偶数であり、それにより、前記複数の脚のうちの隣接するものに沿った磁場の打ち消しをサポートすることを特徴とする請求項１１に記載の共振器。 11. The resonator according to claim 11, wherein the change in direction between the path segments is even, thereby supporting the cancellation of the magnetic field along the adjacent one of the plurality of legs. 前記細長いギャップの前記長さの少なくとも一部は、１０ナノメートル未満のギャップ幅を有し、 At least a portion of the length of the elongated gap has a gap width of less than 10 nanometers.
前記開口部は、１０ナノメートル未満の幅であることを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the opening has a width of less than 10 nanometers. 前記細長いギャップの前記長さの少なくとも一部は、１０ナノメートル未満のギャップ幅を有し、 At least a portion of the length of the elongated gap has a gap width of less than 10 nanometers.
前記開口部は、１０ナノメートル未満の幅であることを特徴とする請求項１０に記載の方法。 10. The method of claim 10, wherein the opening has a width of less than 10 nanometers. 前記細長いギャップの前記長さの少なくとも一部は、１０ナノメートル未満のギャップ幅を有し、 At least a portion of the length of the elongated gap has a gap width of less than 10 nanometers.
前記開口部は、１０ナノメートル未満の幅であることを特徴とする請求項１１に記載の共振器。 11. The resonator according to claim 11, wherein the opening has a width of less than 10 nanometers. 前記共振器の寄生インダクタンスが最小化されることを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the parasitic inductance of the resonator is minimized. 前記共振器の寄生インダクタンスが最小化されることを特徴とする請求項１０に記載の方法。 The method according to claim 10, wherein the parasitic inductance of the resonator is minimized. 前記共振器の寄生インダクタンスが最小化されることを特徴とする請求項１１に記載の共振器。 The resonator according to claim 11, wherein the parasitic inductance of the resonator is minimized. 前記試料は、キュービットを含むことを特徴とする請求項１に記載の共振器。 The resonator according to claim 1, wherein the sample contains a qubit. 前記試料は、キュービットを含むことを特徴とする請求項１０に記載の方法。 10. The method of claim 10, wherein the sample comprises a qubit. 前記試料は、キュービットを含むことを特徴とする請求項１１に記載の共振器。 The resonator according to claim 11, wherein the sample contains a qubit.
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