We study two quantum versions of the Eddington clock-synchronization protocol in the presence of decoherence. The first protocol uses maximally entangled states to achieve the Heisenberg limit for clock synchronization. The second protocol achieves the limit without using entanglement. We show the equivalence of the two protocols under any single-qubit decoherence model that does not itself provide synchronization information
Quantum versions of random walks on the line and cycle show a quadratic improvement in their spreadi...
Optical atomic clocks are our most precise tools to measure time and frequency. They enable precisio...
Decoherence-Free Subsystems (DFS) are a powerful means of protecting quantum information against noi...
We introduce methods for clock synchronization that make use of the adiabatic exchange of nondegener...
We propose a quantum method to judge whether two spatially separated clocks have been synchronized w...
We show that a quantum clock can not be teleported without prior synchronization between sender and ...
We propose a multiparty quantum clock synchronization protocol that makes optimal use of the maximal...
The notion of time is given a different footing in quantum mechanics and general relativity, treated...
Feynman’s model of a quantum computer provides an example of a continuous-time quantum walk. Its clo...
The dynamical evolution of a quantum register of arbitrary length coupled to an environment of arbit...
We revisit a recent proposal for a definition of time in quantum cosmology, to investigate the effec...
Quantum versions of random walks on the line and cycle show a quadratic improvement in their spreadi...
We discuss various definitions of decoherence and how it can be measured. We compare and contrast de...
The use of a relational time in quantum mechanics is a framework in which one promotes to quantum op...
We study the non-Markovian dynamics of a pair of qubits made of two-level atoms separated in space w...
Quantum versions of random walks on the line and cycle show a quadratic improvement in their spreadi...
Optical atomic clocks are our most precise tools to measure time and frequency. They enable precisio...
Decoherence-Free Subsystems (DFS) are a powerful means of protecting quantum information against noi...
We introduce methods for clock synchronization that make use of the adiabatic exchange of nondegener...
We propose a quantum method to judge whether two spatially separated clocks have been synchronized w...
We show that a quantum clock can not be teleported without prior synchronization between sender and ...
We propose a multiparty quantum clock synchronization protocol that makes optimal use of the maximal...
The notion of time is given a different footing in quantum mechanics and general relativity, treated...
Feynman’s model of a quantum computer provides an example of a continuous-time quantum walk. Its clo...
The dynamical evolution of a quantum register of arbitrary length coupled to an environment of arbit...
We revisit a recent proposal for a definition of time in quantum cosmology, to investigate the effec...
Quantum versions of random walks on the line and cycle show a quadratic improvement in their spreadi...
We discuss various definitions of decoherence and how it can be measured. We compare and contrast de...
The use of a relational time in quantum mechanics is a framework in which one promotes to quantum op...
We study the non-Markovian dynamics of a pair of qubits made of two-level atoms separated in space w...
Quantum versions of random walks on the line and cycle show a quadratic improvement in their spreadi...
Optical atomic clocks are our most precise tools to measure time and frequency. They enable precisio...
Decoherence-Free Subsystems (DFS) are a powerful means of protecting quantum information against noi...
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