QUANTUM NETWORK NODE AND PROTOCOLS WITH MULTIPLE QUBIT SPECIES
A quantum networking node is provided for use in a modular optical architecture for quantum computing. The quantum networking node includes multiple memory qubits; and one or more communication qubits. The multiple memory qubits and the one or more communication qubits are part of a lattice in an ion trap. Moreover, the memory qubits and the communication qubits are made from a pair of different ion species, each ion species of the pair of different ion species being individually selected from Ba, Ca, Sr, or Mg.
1 . A quantum networking node for use in a modular optical architecture for quantum computing, the quantum networking node comprising:
multiple memory qubits; and
one or more communication qubits,
wherein the multiple memory qubits and the one or more communication qubits are part of a lattice in an ion trap, and
wherein the memory qubits and the communication qubits are made from a pair of different ion species, each ion species of the pair of different ion species being individually selected from Ba, Ca, Sr, or Mg.
2 . The quantum networking node of claim 1 , wherein one of the pair of different ion species comprises an isotope of Ba selected from 138Ba, 137Ba, or 133Ba.
3 . The quantum networking node of claim 1 , wherein one of the pair of different ion species comprises an isotope of Sr selected from 88Sr, 87Sr, or 86Sr.
4 . The quantum networking node of claim 1 , wherein one of the pair of different ion species comprises an isotope of Ca selected from 40Ca or 43Ca.
5 . The quantum networking node of claim 1 , wherein one of the pair of different ion species comprises an isotope of Mg selected from 24Mg, 25Mg, or 26Mg.
6 . A quantum computing system having a modular optical architecture, the quantum computing system comprising:
a first quantum networking node having a first ion trap, a lattice formed in the first ion trap having one or more memory qubits and one or more communication qubits; and
a second quantum networking node having a second ion trap, a lattice formed in the second ion trap having one or more memory qubits and one or more communication qubits,
wherein the one or more communication qubits in the first quantum networking node and the one or more communication qubits in the second quantum networking node are configured to establish an optical communication between the first quantum networking node and the second quantum networking node, and
wherein the one or more memory qubits and the one or more communication qubits are made from a pair of different ion species, each ion species of the pair of different ion species being individually selected from Ba, Ca, Sr, or Mg.
7 . The quantum computing system of claim 6 , wherein one of the pair of different ion species comprises an isotope of Ba selected from 138Ba, 137Ba, or 133Ba.
8 . The quantum computing system of claim 6 , wherein one of the pair of different ion species comprises an isotope of Sr selected from 88Sr, 87Sr, or 86Sr.
9 . The quantum computing system of claim 6 , wherein one of the pair of different ion species comprises an isotope of Ca selected from 40Ca or 43Ca.
10 . The quantum computing system of claim 6 , wherein one of the pair of different ion species comprises an isotope of Mg selected from 24Mg, 25Mg, or 26Mg.
11 . A quantum computing system having a modular optical architecture, the quantum computing system comprising:
a first quantum networking node having a first ion trap that includes a lattice having one or more memory qubits and one or more communication qubits; and
a second quantum networking node having a second ion trap that includes a lattice having one or more memory qubits and one or more communication qubits,
wherein the one or more communication qubits in the first quantum networking node and the one or more communication qubits in the second quantum networking node are each configured to establish an optical communication between the first quantum networking node and the second quantum networking node, and
wherein at least one of the one or more memory qubits and the one or more communication qubits comprises a pair of different ion species, with at least one pair of ions species selected from Ba, Ca, Sr, or Mg.
12 . The quantum computing system of claim 11 , wherein one of the pair of different ion species comprises an isotope of Ba selected from 138Ba, 137Ba, or 133Ba.
13 . The quantum computing system of claim 11 , wherein one of the pair of different ion species comprises an isotope of Sr selected from 88Sr, 87Sr, or 86Sr.
14 . The quantum computing system of claim 11 , wherein one of the pair of different ion species comprises an isotope of Ca selected from 40Ca or 43Ca.
15 . The quantum computing system of claim 11 , wherein one of the pair of different ion species comprises an isotope of Mg selected from 24Mg, 25Mg, or 26Mg.