dorsal/arxiv
View SchemaControlled-NOT gate design for Josephson phase qubits with tunable inductive coupling: Weyl chamber steering and area theorem
| Authors | Andrei Galiautdinov, Michael Geller |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703208 |
| URL | https://arxiv.org/abs/quant-ph/0703208 |
Abstract
Superconducting qubits with tunable coupling are ideally suited for fast and accurate implementation of quantum logic. Here we present a simple approach, based on Weyl chamber steering, to CNOT gate design for inductively coupled phase qubits with tunable coupling strength g. In the presence of simultaneous rf pulses on the individual qubits that appropriately track the coupling strength as it is varied, we show that an infinite family of switching sequences preserving the time integral or "area" of g can be used to generate CNOT logic. We demonstrate our approach by considering time-dependencies most likely to be used in actual implementations: trapezoidal, sine, and soft quartic (also known as Landau's hat).
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"abstract": "Superconducting qubits with tunable coupling are ideally suited for fast and\naccurate implementation of quantum logic. Here we present a simple approach,\nbased on Weyl chamber steering, to CNOT gate design for inductively coupled\nphase qubits with tunable coupling strength g. In the presence of simultaneous\nrf pulses on the individual qubits that appropriately track the coupling\nstrength as it is varied, we show that an infinite family of switching\nsequences preserving the time integral or \"area\" of g can be used to generate\nCNOT logic. We demonstrate our approach by considering time-dependencies most\nlikely to be used in actual implementations: trapezoidal, sine, and soft\nquartic (also known as Landau\u0027s hat).",
"arxiv_id": "quant-ph/0703208",
"authors": [
"Andrei Galiautdinov",
"Michael Geller"
],
"categories": [
"quant-ph"
],
"title": "Controlled-NOT gate design for Josephson phase qubits with tunable inductive coupling: Weyl chamber steering and area theorem",
"url": "https://arxiv.org/abs/quant-ph/0703208"
},
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"execution_id": "9e3645b5-d531-48d6-8774-bf8a6dcf8043",
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"type": "Model",
"variant": "snapshot-2026-03-01",
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