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Quantum master equation for the vacuum decay dynamics
The quantum master equation required to describe the dynamics of gravity-related vacuum decay is still challenging. We aim to study this issue. Our...
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Nonequilibrium thermodynamics of quantum coherence beyond linear response
Quantum thermodynamics allows for the interconversion of quantum coherence and mechanical work. Quantum coherence is thus a potential physical...
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Electron charge qubit with 0.1 millisecond coherence time
Electron charge qubits are compelling candidates for solid-state quantum computing because of their inherent simplicity in qubit design, fabrication,...
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Coherence dynamics of spin systems in critical environment with topological characterization
The coherence dynamics of the central systems are investigated in the spin-chain environment with topological characterization. For the single- and...
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Coherence limits in lattice atom interferometry at the one-minute scale
In quantum metrology and quantum simulation, a coherent non-classical state must be manipulated before unwanted interactions with the environment...
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Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions
Coherence and tunneling play central roles in quantum phenomena. In a tunneling event, the time that a particle spends inside the barrier has been...
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Protecting bipartite entanglement by collective decay and quantum interferences
We study the entanglement dynamics of a pair of identical three-level V-type atoms that are interacting with a common vacuum reservoir. The effect of...
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Second-scale rotational coherence and dipolar interactions in a gas of ultracold polar molecules
Ultracold polar molecules combine a rich structure of long-lived internal states with access to controllable long-range anisotropic dipole–dipole...
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Coherent Backscattering Peak for Radiation with Low Spatial Coherence
AbstractThe theory is developed and numerical simulation is performed for the coherent backscattering effect in a strongly inhomogeneous random...
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Quantum coherence and non-Markovianity in a noisy quantum tunneling problem
We investigate the coherence and non-Markovianity of a quantum tunneling system whose barrier is fluctuated by a telegraph noise, and its energy gap...
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Quantum coherence and entanglement in neutral-current neutrino oscillation in matter
Although neutrino–antineutrino states originating from neutral-current interactions are blind concerning the flavor state, an oscillation pattern is...
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Enhanced quantum coherence of plasmonic resonances with a chiral exceptional points
While strategies to enhance the quantum coherence of plasmonic resonances have attracted a lot of attention in the past, the advent of non-Hermitian...
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Decay-protected superconducting qubit with fast control enabled by integrated on-chip filters
Achieving fast gates and long coherence times for superconducting qubits presents challenges, typically requiring either a stronger coupling of the...
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Intrinsic decoherence effects on correlated coherence and quantum discord in XXZ Heisenberg model
Spin qubits are at the heart of technological advances in quantum processors and offer an excellent framework for quantum information processing....
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Quantum Coherence in Non-Markovian Quantum Channels
We numerically simulate quantum coherence in a system of two qubits interacting with a reservoir for non-Markovian channels. The explicit form of the...
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Systematic improvements in transmon qubit coherence enabled by niobium surface encapsulation
We present a transmon qubit fabrication technique that yields systematic improvements in T 1 relaxation times. We encapsulate the surface of niobium...
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Enhancing the coherence of superconducting quantum bits with electric fields
In the endeavor to make quantum computers a reality, integrated superconducting circuits have become a promising architecture. A major challenge of...
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Controlling the photon number coherence of solid-state quantum light sources for quantum cryptography
Quantum communication networks rely on quantum cryptographic protocols including quantum key distribution (QKD) based on single photons. A critical...
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Quantum coherence-assisted secure communication of internet of things information via Landau-quantized graphene
In the current scenario of information explosion, one of the growing concerns of scientists worldwide is to manage the information storage and...
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Coherence versus quantum-memory-assisted entropic uncertainty relation of double quantum dots with Rashba spin–orbit interaction
Gaining insight into nanostructure devices represents a crucial step in unlocking their full quantum potential. Solid-state quantum dots provide a...
