Entanglement dynamics of moving qubits in a common environment

  title={Entanglement dynamics of moving qubits in a common environment},
  author={Sareh Golkar and Mohammad Kazem Tavassoly and Alireza Nourmandipour},
  journal={Journal of the Optical Society of America B},
In this paper we provide an analytical investigation of the entanglement dynamics of moving qubits dissipating into a common and (in general) non-Markovian environment for both weak and strong coupling regimes. We first consider the case of two moving qubits in a common environment and then generalize it to an arbitrary number of moving qubits. We show that for an initially entangled state, the environment washes out the initial entanglement after a finite interval of time. We also show that… 
4 Citations

Qubit movement-assisted entanglement swapping

We propose a scheme to generate entanglement between two distant qubits (two-level atom) which are separately trapped in their own (in general) non-Markovian dissipative cavities by utilizing

Controlling qubit–photon entanglement, entanglement swapping and entropic uncertainty via frequency modulation

We conduct a study into the impact of frequency modulation on the dynamic behavior of qubit–photon entanglement inside a leaky cavity and subsequently on the entanglement swapping between such two



Dynamics and protection of entanglement in n-qubit systems within Markovian and non-Markovian environments

We provide an analytical investigation of the pairwise entanglement dynamics for a system, consisting of an arbitrary number of qubits dissipating into a common and non-Markovian environment for both

Noncyclic geometric quantum computation and preservation of entanglement for a two-qubit Ising model

It is found that the entanglement evolution is independent of the initial Bell states, and the unusable states for quantum communication, completely deviated from the initial maximally entangled states are identified.

Non-Markovianity and Coherence of a Moving Qubit inside a Leaky Cavity

It is shown that, owing to the inhibition of the decay rate, the coherence of the traveling qubit remains closer to its initial value as time goes by compared to that of a qubit at rest, and quantum coherence is preserved more efficiently for larger qubit velocities.

Protecting entanglement by adjusting the velocities of moving qubits inside non-Markovian environments

Efficient entanglement preservation in open quantum systems is a crucial scope towards a reliable exploitation of quantum resources. We address this issue by studying how two-qubit entanglement

Non-markovian time evolution of an accelerated qubit

We present a new method for evaluating the response of a moving qubit detector interacting with a scalar field in Minkowski spacetime. We treat the detector as an open quantum system, but we do not

Quantum coherence and entanglement preservation in Markovian and non-Markovian dynamics via additional qubits

Abstract In this paper, we investigate preservation of quantum coherence of a single-qubit interacting with a zero-temperature reservoir through the addition of non-interacting qubits in the

Atomic motion and dipole–dipole effects on the stability of atom–atom entanglement in Markovian/non-Markovian reservoir

In this paper, we consider the entanglement dynamics of two identical qubits (two-level atoms) accompanied by dipole–dipole interaction within a common reservoir in the strong and weak coupling

Entanglement dynamics for qubits dissipating into a common environment

We provide an analytical investigation of the entanglement dynamics for a system composed of an arbitrary number of qubits dissipating into a common environment. Specifically we consider initial

Dynamics of entanglement protection of two qubits using a driven laser field and detunings: Independent and common, Markovian and/or non-Markovian regimes

Preventing quantum entanglement from decoherence effect is of theoretical and practical importance in the quantum information processing technologies. In this regard, we consider the entanglement