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07/25/2023
Fermionic Hamiltonians without trivial low-energy states
We construct local fermionic Hamiltonians with no low-energy trivial sta...
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11/29/2022
Optimizing sparse fermionic Hamiltonians
We consider the problem of approximating the ground state energy of a fe...
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07/18/2019
Counting single-qubit Clifford equivalent graph states is #P-Complete
Graph states, which include for example Bell states, GHZ states and clus...
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07/18/2019
Transforming graph states to Bell-pairs is NP-Complete
Critical to the construction of large scale quantum networks, i.e. a qua...
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05/14/2018