Symmetric superpositions of antipodal triplet states produce exact zero-energy eigenstates in non-integrable spin Hamiltonians that are scars with tunable entanglement from volume to area law.
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Rotating two collective spin subsystems by angle heta lengthens quantum-jump waiting times (finite and N-independent at heta= heta=π), mitigating detector resolution at the cost of longer entanglement saturation times.
Higher moments of entanglement entropy distribution in hybrid quantum circuits distinguish measurement-induced phases and are captured by a phenomenological model for area-law combined with directed polymer description for volume-law.
citing papers explorer
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Symmetric tensor scars with tunable entanglement from volume to area law
Symmetric superpositions of antipodal triplet states produce exact zero-energy eigenstates in non-integrable spin Hamiltonians that are scars with tunable entanglement from volume to area law.
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Controlling Waiting Time Statistics in Monitored Collective Spins: Mitigating Detector's Resolution Barrier in Measurement-Induced Phase Transitions
Rotating two collective spin subsystems by angle heta lengthens quantum-jump waiting times (finite and N-independent at heta= heta=π), mitigating detector resolution at the cost of longer entanglement saturation times.
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On the Entanglement Entropy Distribution of a Hybrid Quantum Circuit
Higher moments of entanglement entropy distribution in hybrid quantum circuits distinguish measurement-induced phases and are captured by a phenomenological model for area-law combined with directed polymer description for volume-law.