dorsal/arxiv
View SchemaA Cat-State Benchmark on a Seven Bit Quantum Computer
| Authors | E. Knill, R. Laflamme, R. Martinez, C. -H. Tseng |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9908051 |
| URL | https://arxiv.org/abs/quant-ph/9908051 |
Abstract
We propose and experimentally realize an algorithmic benchmark that demonstrates coherent control with a sequence of quantum operations that first generates and then decodes the cat state (|000...>+|111...>)/sqrt(2) to the standard initial state |000...>. This is the first high fidelity experimental quantum algorithm on the currently largest physical quantum register, which has seven quantum bits (qubits) provided by the nuclei of crotonic acid. The experiment has the additional benefit of verifying a seven coherence in a generic system of coupled spins. Our implementation combines numerous nuclear magnetic resonance (NMR) techniques in one experiment and introduces practical methods for translating quantum networks to control operations. The experimental procedure can be used as a reliable and efficient method for creating a standard pseudo-pure state, the first step for implementing traditional quantum algorithms in liquid state NMR. The benchmark and the techniques can be adapted for use on other proposed quantum devices.
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"abstract": "We propose and experimentally realize an algorithmic benchmark that\ndemonstrates coherent control with a sequence of quantum operations that first\ngenerates and then decodes the cat state (|000...\u003e+|111...\u003e)/sqrt(2) to the\nstandard initial state |000...\u003e. This is the first high fidelity experimental\nquantum algorithm on the currently largest physical quantum register, which has\nseven quantum bits (qubits) provided by the nuclei of crotonic acid. The\nexperiment has the additional benefit of verifying a seven coherence in a\ngeneric system of coupled spins. Our implementation combines numerous nuclear\nmagnetic resonance (NMR) techniques in one experiment and introduces practical\nmethods for translating quantum networks to control operations. The\nexperimental procedure can be used as a reliable and efficient method for\ncreating a standard pseudo-pure state, the first step for implementing\ntraditional quantum algorithms in liquid state NMR. The benchmark and the\ntechniques can be adapted for use on other proposed quantum devices.",
"arxiv_id": "quant-ph/9908051",
"authors": [
"E. Knill",
"R. Laflamme",
"R. Martinez",
"C. -H. Tseng"
],
"categories": [
"quant-ph"
],
"title": "A Cat-State Benchmark on a Seven Bit Quantum Computer",
"url": "https://arxiv.org/abs/quant-ph/9908051"
},
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