A quantum computing device (11, 12, 13, 21, 22, 23) comprising: a first qubit chip; a readout cavity structure (310, 312) surrounding a first end part of the first qubit chip; and a storage cavity structure (410, 412) surrounding a second end part of the first qubit chip; wherein the first qubit chip, the readout cavity structure (310, 312) and the storage cavity structure (410, 412) longitudinally extend in a first direction; wherein the first qubit chip comprises: a first readout antenna disposed in the readout cavity structure (310, 312); a first storage antenna disposed in the storage cavity structure (410, 412); and a first qubit element provided between the first readout antenna and the first storage antenna, and wherein the first qubit element is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412); wherein: the readout cavity structure (310, 312) and the storage cavity structure (410, 412) are spaced apart in the first direction; the first readout antenna extends toward the first qubit element in the first direction such that a portion of the first readout antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412), and the first storage antenna extends toward the first qubit element in the first direction such that a portion of the first storage antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412). a first qubit chip; a readout cavity structure (310, 312) surrounding a first end part of the first qubit chip; and a storage cavity structure (410, 412) surrounding a second end part of the first qubit chip; wherein the first qubit chip, the readout cavity structure (310, 312) and the storage cavity structure (410, 412) longitudinally extend in a first direction; wherein the first qubit chip comprises: a first readout antenna disposed in the readout cavity structure (310, 312); a first storage antenna disposed in the storage cavity structure (410, 412); and a first qubit element provided between the first readout antenna and the first storage antenna, and wherein the first qubit element is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412); wherein: the readout cavity structure (310, 312) and the storage cavity structure (410, 412) are spaced apart in the first direction; the first readout antenna extends toward the first qubit element in the first direction such that a portion of the first readout antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412), and the first storage antenna extends toward the first qubit element in the first direction such that a portion of the first storage antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412). a first readout antenna disposed in the readout cavity structure (310, 312); a first storage antenna disposed in the storage cavity structure (410, 412); and a first qubit element provided between the first readout antenna and the first storage antenna, and wherein the first qubit element is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412); wherein: the readout cavity structure (310, 312) and the storage cavity structure (410, 412) are spaced apart in the first direction; the first readout antenna extends toward the first qubit element in the first direction such that a portion of the first readout antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412), and the first storage antenna extends toward the first qubit element in the first direction such that a portion of the first storage antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412). the readout cavity structure (310, 312) and the storage cavity structure (410, 412) are spaced apart in the first direction; the first readout antenna extends toward the first qubit element in the first direction such that a portion of the first readout antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412), and the first storage antenna extends toward the first qubit element in the first direction such that a portion of the first storage antenna is disposed between the readout cavity structure (310, 312) and the storage cavity structure (410, 412).