We revisit the Pauli-Clifford connection to introduce a real, grade-preserving algebraic framework for $n$ -qubit quantum computation based on the tensor product $C\ell_{2,0}(\mathbb{R})^{\otimes n}$ . In this setting, the bivector $J = e_{12}$ satisfies $J^{2} = -1$ and supplies the complex structure on the $J$ -closure of a minimal left ideal via right multiplication, while Pauli operations arise as left actions of Clifford elements. The Peirce decomposition organizes the algebra into sector blocks determined by primitive idempotents, with nilpotent elements generating transitions between sectors. Quantum states are represented as equivalence classes modulo the left annihilator, exhibiting the quotient description underlying the minimal left ideal. Adopting a canonical stabilizer mapping, the $n$ -qubit computational basis state $|0\cdots 0\rangle$ is given natively by a tensor product of these idempotents. This structural choice leads to a compatibility law that is stable under the geometric product for $n$ qubits and aligns symbolic Clifford multiplication with unitary evolution on the Hilbert space.We revisit the Pauli-Clifford connection to introduce a real, grade-preserving algebraic framework for $n$-qubit quantum computation based on the tensor product $C\ell_{2,0}(\mathbb{R})^{\otimes n}$. In this setting, the bivector $J = e_{12}$ satisfies $J^{2} = -1$ and supplies the complex structure on the $J$-closure of a minimal left ideal via right multiplication, while Pauli operations arise as left actions of Clifford elements. The Peirce decomposition organizes the algebra into sector blocks determined by primitive idempotents, with nilpotent elements generating transitions between sectors. Quantum states are represented as equivalence classes modulo the left annihilator, exhibiting the quotient description underlying the minimal left ideal. Adopting a canonical stabilizer mapping, the $n$-qubit computational basis state $|0\cdots 0\rangle$ is given natively by a tensor product of these idempotents. This structural choice leads to a compatibility law that is stable under the geometric product for $n$ qubits and aligns symbolic Clifford multiplication with unitary evolution on the Hilbert space.

quant-pharXiv:2512.07902Dec 9, 20250 citations

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R. G. Beil, Kenneth Laine Ketner

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We revisit the Pauli-Clifford connection to introduce a real, grade-preserving algebraic framework for

n

-qubit quantum computation based on the tensor product

C\ell_{2,0}(\mathbb{R})^{\otimes n}

. In this setting, the bivector

J = e_{12}

satisfies

J^{2} = -1

and supplies the complex structure on the

J

-closure of a minimal left ideal via right multiplication, while Pauli operations arise as left actions of Clifford elements. The Peirce decomposition organizes the algebra into sector blocks determined by primitive idempotents, with nilpotent elements generating transitions between sectors. Quantum states are represented as equivalence classes modulo the left annihilator, exhibiting the quotient description underlying the minimal left ideal. Adopting a canonical stabilizer mapping, the

n

-qubit computational basis state

|0\cdots 0\rangle

is given natively by a tensor product of these idempotents. This structural choice leads to a compatibility law that is stable under the geometric product for

n

qubits and aligns symbolic Clifford multiplication with unitary evolution on the Hilbert space.