46 citations · 239 across the 20 of their papers we have counts for
21 papers
Generation of arbitrary quantum states in cavity-atom systems with a three-level ancilla
Da-Wei Luo, Ting Yu
We generalized the seminal work of Law & Eberly, and propose a protocol to generate arbitrary quantum states with a three-level atom as an ancilla in a more efficient manner. This…
Optically-mediated remote entanglement generation in magnon-cavity systems
Da-Wei Luo, Xiao-Feng Qian, Ting Yu
We study the remote entanglement generation between macroscopic microwave magnon modes in a coupled cavity system. The cavities are connected via an optical fiber, which necessitat…
Self-protected adiabatic quantum computation
P. V. Pyshkin, Da-Wei Luo, Lian-Ao Wu
Recent experiments show the existence of collective decoherence in quantum systems. We study the possibility of quantum computation in decoherence free subspace which is robust aga…
Many-body quantum state control in the presence of environmental noise
Zara Yu, Da-Wei Luo
We consider the quantum state control of a multi-state system which evolves an initial state into a target state. We explicitly demonstrate the control method in an interesting cas…
Tunable Tradeoff between Quantum and Classical Computation via Nonunitary Zeno-like Dynamics
P. V. Pyshkin, A. Gábris, Da-Wei Luo +2
We propose and analyze a nonunitary variant of the continuous time Grover search algorithm based on frequent Zeno-type measurements. We show that the algorithm scales similarly to…
Nonlocal magnon entanglement generation in coupled hybrid cavity systems
Da-Wei Luo, Xiao-Feng Qian, Ting Yu
We investigate dynamical generation of macroscopic nonlocal entanglements between two remote massive magnon-superconducting-circuit hybrid systems. Two fiber-coupled microwave cavi…
Quantum energy transfer between nonlinearly-coupled bosonic bath and a fermionic chain: an exactly solvable model
Zhao-Ming Wang, Da-Wei Luo, Baowen Li +1
The evolution of a quantum system towards thermal equilibrium is usually studied by approximate methods, which have their limits of validity and should be checked against analytica…
Geometric decoherence in diffusive open quantum systems
Da-Wei Luo, Hai-Qing Lin, J. Q. You +3
Based on a generic quantum open system model, we study the geometric nature of decoherence by defining a complex-valued geometric phase through stochastic pure states describing no…
Memory-induced geometric phase in non-Markovian open systems
Da-Wei Luo, J. Q. You, Hai-Qing Lin +2
Geometric phases have been shown to be feasible in implementing quantum gates to perform quantum information processing. For all the realistic applications, the environmental influ…
Nondeterministic quantum computation via ground state cooling and ultrafast Grover algorithm
P. V. Pyshkin, Da-Wei Luo, J. Q. You +1
Over the last decades, there have been many proposals for quantum computation. One of the promising candidates is adiabatic quantum computation (AQC). The central idea of AQC is ab…
Spatial compression of a particle state in a parabolic potential by spin measurements
P. V. Pyshkin, E. Ya. Sherman, Da-Wei Luo +2
We propose a scheme for engineering compressed spatial states in a two-dimensional parabolic potential with a spin-orbit coupling by selective spin measurements. This sequence of m…
Quantum phase transition by employing trace distance along with the density matrix renormalization group
Da-Wei Luo, Jing-Bo Xu
We use an alternative method to investigate the quantum criticality at zero and finite temperature using trace distance along with the density matrix renormalization group. It is s…
Trace distance and scaling behavior of coupled cavity lattice at finite temperature
Da-Wei Luo, Jing-Bo Xu
We use an alternative approach to study the quantum phase transition in a coupled cavity lattice at finite temperature. As an illustrative example, we investigate the behaviors of…
Eigenstate Tracking in Open Quantum Systems
Jun Jing, Marcelo S. Sarandy, Daniel A. Lidar +2
Keeping a quantum system in a given instantaneous eigenstate is a control problem with numerous applications, e.g., in quantum information processing. The problem is even more chal…
Two-component Dirac equation
Da-Wei Luo, P. V. Pyshkin, Ting Yu +3
We provide an alternative approach to relativistic dynamics based on the Feshbach projection technique. Instead of directly studying the Dirac equation, we derive a two-component e…
Quantum simulator for many-body electron-electron Coulomb interaction with ion traps
Da-Wei Luo, P. V. Pyshkin, Michele. Modugno +3
We propose an analog quantum simulator that uses ion traps to realize the many-body electron-electron Coulomb interaction of an electron gas. This proposal maps a system that is di…
Dynamical invariants in non-Markovian quantum state diffusion equation
Da-Wei Luo, P. V. Pyshkin, Chi-Hang Lam +4
We find dynamical invariants for open quantum systems described by the non-Markovian quantum state diffusion (QSD) equation. In stark contrast to closed systems where the dynamical…
Expedited Holonomic Quantum Computation in Decoherence-Free Subspace
P. V. Pyshkin, Da-wei Luo, Jun Jing +2
Holonomic quantum computation (HQC) may not show its full potential in quantum speedup due to the prerequisite of a long coherent runtime imposed by the adiabatic condition. Here w…
Ground state cooling of quantum systems via a one-shot measurement
P. V. Pyshkin, Da-Wei Luo, J. Q. You +1
We prove that there exists a family of quantum systems that can be cooled to their ground states by a one-shot projective measurement on the ancillas coupled to these systems. Cons…
Higher-order solutions to non-Markovian quantum dynamics via hierarchical functional derivative
Da-Wei Luo, Chi-Hang Lam, Lian-Ao Wu +3
Solving realistic quantum systems coupled to an environment is a challenging task. Here we develop a hierarchical functional derivative (HFD) approach for efficiently solving the n…
Pulse control of sudden transition for two qubits in XY spin baths and quantum phase transition
Da-Wei Luo, Hai-Qing Lin, Jing-Bo Xu +1
We study the dynamics of two initially correlated qubits coupled to their own separate spin baths modeled by a XY spin chain and find the explicit expression of the quantum discord…