Simulating Mass-Dependent Decoherence in Quantum Computers: Baseline Signatures for Testing Gravity-Induced Collapse
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arXiv
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| Format: | Preprint |
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2025
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| author | Balaji, Viswak R Punch, Samuel |
| author_facet | Balaji, Viswak R Punch, Samuel |
| contents | We present a quantum computing simulation study of mass-dependent decoherence models inspired by Penrose's gravity-induced collapse hypothesis. According to objective reduction (OR) theory, quantum superpositions become unstable when the gravitational self-energy difference between branches exceeds a certain threshold, leading to a collapse time $τ\approx \hbar / E_G$. In this work, we implement a mass-dependent dephasing noise channel, $p(m) = 1 - e^{-k m^α}$, within the Qiskit AerSimulator, where $m$ is a proxy for the effective mass of a superposition, mapped to circuit parameters such as the number of entangled qubits or branch size. We apply this model to three canonical quantum computing experiments: GHZ state parity measurements, branch-mass entanglement tests, and Grover's search to generate distinctive collapse signatures that differ qualitatively from constant-rate dephasing. The resulting patterns serve as a baseline reference: if future hardware experiments exhibit the same scaling trends under ideal isolation, this could indicate a contribution from mass-dependent collapse processes. Conversely, deviation toward constant-noise behaviour would suggest the absence of such gravitationally induced effects. Our results provide a reproducible protocol and reference for using quantum computers as potential testbeds for probing fundamental questions in quantum mechanics. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_10590 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Simulating Mass-Dependent Decoherence in Quantum Computers: Baseline Signatures for Testing Gravity-Induced Collapse Balaji, Viswak R Punch, Samuel Quantum Physics Emerging Technologies Computational Physics We present a quantum computing simulation study of mass-dependent decoherence models inspired by Penrose's gravity-induced collapse hypothesis. According to objective reduction (OR) theory, quantum superpositions become unstable when the gravitational self-energy difference between branches exceeds a certain threshold, leading to a collapse time $τ\approx \hbar / E_G$. In this work, we implement a mass-dependent dephasing noise channel, $p(m) = 1 - e^{-k m^α}$, within the Qiskit AerSimulator, where $m$ is a proxy for the effective mass of a superposition, mapped to circuit parameters such as the number of entangled qubits or branch size. We apply this model to three canonical quantum computing experiments: GHZ state parity measurements, branch-mass entanglement tests, and Grover's search to generate distinctive collapse signatures that differ qualitatively from constant-rate dephasing. The resulting patterns serve as a baseline reference: if future hardware experiments exhibit the same scaling trends under ideal isolation, this could indicate a contribution from mass-dependent collapse processes. Conversely, deviation toward constant-noise behaviour would suggest the absence of such gravitationally induced effects. Our results provide a reproducible protocol and reference for using quantum computers as potential testbeds for probing fundamental questions in quantum mechanics. |
| title | Simulating Mass-Dependent Decoherence in Quantum Computers: Baseline Signatures for Testing Gravity-Induced Collapse |
| topic | Quantum Physics Emerging Technologies Computational Physics |
| url | https://arxiv.org/abs/2508.10590 |