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Scalable Implementation of Boson Sampling with Trapped Ions
Scalable Implementation Boson Sampling Trapped Ions
2016/1/22
Boson sampling solves a classically intractable problem by sampling from a probability distribution given by matrix permanents. We propose a scalable implementation of boson sampling using local trans...
Probe of Three-Dimensional Chiral Topological Insulators in an Optical Lattice
Three-Dimensional Chiral Topological Insulators Optical Lattice
2016/1/22
We propose a feasible experimental scheme to realize a three-dimensional chiral topological insulator with cold fermionic atoms in an optical lattice, which is characterized by an integer topological ...
Direct Probe of Topological Order for Cold Atoms.
Direct Probe Topological Order Cold Atoms
2016/1/22
Cold-atom experiments in optical lattices offer a versatile platform to realize various topological quantum phases. A key challenge in those experiments is to unambiguously probe the topological order...
Quantum Metrology with Dicke Squeezed States
quantum metrology Dicke squeezed state entanglement
2016/1/22
We introduce a new class of quantum many-particle entangled states, called the Dicke squeezed (or DS) states, which can be used to improve the precision in quantum metrology beyond the standard quantu...
High Fidelity Quantum Gates for Trapped Ions under Micromotion
High Fidelity Quantum Gate Trapped Ions Micromotion
2016/1/22
Two- or three-dimensional Paul traps can confine a large number of ions forming a Wigner crystal, which would provide an ideal architecture for scalable quantum computation except for the micromotion,...
Certifying Quantumness: Benchmarks for the Optimal Processing of Generalized Coherent and Squeezed States[J]
Certifying Quantumness Benchmarks Optimal Processing Generalized Coherent Squeezed States[J]
2016/1/22
Quantumtechnologypromisesrevolutionaryadvantagesininformationprocessingandtransmissioncompared to classical technology; however, determining which specific resources are needed to surpass the capabili...
Implementation of a Measurement-Device-Independent Entanglement Witness
Measurement-Device-Independent Entanglement Witness
2016/1/22
Entanglement, the essential resource in quantum information processing, should be witnessed in many tasks such as quantum computing and quantum communication. The conventional entanglement witness met...
Practical and Fast Quantum Random Number Generation Based on Photon Arrival Time Relative to External Reference
Practical Fast Quantum Random Number Generation Photon Arrival Time Relative External Reference
2016/1/22
We present a practical high-speed quantum random number generator, where the timing of single-photon detection relative to an external time reference is measured as the raw data. The bias of the raw d...
Why the Quantitative Condition Fails to Reveal Quantum Adiabaticity
adiabatic computing quantum adiabatic condition adiabatic approximation
2016/1/22
The quantitative adiabatic condition (QAC), or quantitative condition, is a convenient (a priori) tool for estimating the adiabaticity of quantum evolutions. However, the range of the applicability of...
Local Convertibility and Edge States in Quantum Many Body Systems
Local Convertibility Edge States Quantum Many Body Systems
2016/1/22
In some many-body systems, certain ground-state entanglement (Rényi) entropies increase even as the correlation length decreases. This entanglement nonmonotonicity is a potential indicator of nonclass...
Entanglement-free Certification of Entangling Gates
Entanglement-free Certification Entangling Gates
2016/1/22
Not all quantum protocols require entanglement to outperform their classical alternatives. The nonclassical correlations that lead to a quantum advantage are conjectured to be captured by quantum disc...
Demon-like Algorithmic Quantum Cooling and Its Realization with Quantum Optics
Demon-like Algorithmic Quantum Cooling Quantum Optics
2016/1/22
Simulation of the low-temperature properties of many-body systems remains one of the major challenges in theoretical 1–3 and experimental 4–6 quantum information science. We present, and demonstrate e...
Quantum entanglement is an essential resource in quantum information processing,which needs to be verified in many tasks such as quantum cryptography and computation. Due to imperfect detection device...
Time Reversal and Charge Conjugation in an Embedding Quantum Simulator
Charge Conjugation Embedding Quantum Simulator
2016/1/22
A quantum simulator is an important device that may soon outperform current classical computations. A basic arithmetic operation, the complex conjugate, however, is considered to be impossible to be i...
Experimental Test of Quantum Jarzynski Equality with a Trapped Ion System
Quantum Jarzynski Equality Trapped Ion System
2016/1/22
TheJarzynskiequalityrelatesthefree-energydiferencebetweentwoequilibriumstatestotheworkdoneonasystemthrough far-from-equilibriumprocesses amilestonethatbuildsonthepioneeringworkofClausiusandKelvin.Alth...