Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

Total Papers

27,694

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1,159

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Research Volume

13,008 papers in 12 months (-3% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

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1,763 papers found

A theoretical study of nonclassical effects in optical and spin systems and their applications

Kishore Thapliyal·Mar 5, 2018

Nonclassical states, having no classical analogue, promise advantage in the performance in several fields of technology, such as computation, communication, sensing. This led to an escalated interest in the recent years for the generation and charact...

Computer ScienceMathematicsPhysics

On-chip transverse-mode entangled photon pair source

Lantian Feng, Ming Zhang, X. Xiong +7 more·Feb 27, 2018

Integrated entangled photon pair source is an essential resource for both fundamental investigations and practical applications of quantum information science. Currently there have been several types of entanglement, among which the transverse-mode e...

Physics

Microscopic characterisation of laser-written phenomena for component-wise testing of photonic integrated circuits

J. Guan, Xiang Liu, A. Menssen +1 more·Feb 22, 2018

Photonic integrated circuits (PICs) directly written with a femtosecond laser have shown great potential in many areas such as quantum information processing (QIP). Many applications, like photon-based quantum computing, demand the up-scaling of PICs...

PhysicsMaterials Science

Gaussian random number generator: Implemented in FPGA for quantum key distribution

Yue Hu, Yan Wu, Yi Chen +2 more·Feb 20, 2018

Quantum key distribution is the process of using quantum communication to establish a shared key between two parties. It has been demonstrated the unconditional security and effective communication of quantum communication system can be guaranteed by...

EngineeringComputer Science

Realization of efficient quantum gates with a superconducting qubit-qutrit circuit

T. Bækkegaard, L. B. Kristensen, N. Loft +3 more·Feb 12, 2018

Building a quantum computer is a daunting challenge since it requires good control but also good isolation from the environment to minimize decoherence. It is therefore important to realize quantum gates efficiently, using as few operations as possib...

MathematicsPhysicsComputer ScienceMedicine

Deterministic Generation of Large-Scale Entangled Photonic Cluster State from Interacting Solid State Emitters.

Mercedes Gimeno-Segovia, T. Rudolph, S. Economou·Jan 8, 2018

The ability to create large highly entangled "cluster" states is crucial for measurement-based quantum computing. We show that deterministic multiphoton entanglement can be created from coupled solid state quantum emitters without the need for any tw...

MedicinePhysics

Deterministic quantum state transfer and remote entanglement using microwave photons

P. Kurpiers, P. Magnard, T. Walter +10 more·Dec 22, 2017

Sharing information coherently between nodes of a quantum network is fundamental to distributed quantum information processing. In this scheme, the computation is divided into subroutines and performed on several smaller quantum registers that are co...

MathematicsComputer ScienceMedicinePhysics

Deterministic delivery of remote entanglement on a quantum network

P. Humphreys, N. Kalb, Jaco P. J. Morits +5 more·Dec 20, 2017

Large-scale quantum networks promise to enable secure communication, distributed quantum computing, enhanced sensing and fundamental tests of quantum mechanics through the distribution of entanglement across nodes1–7. Moving beyond current two-node n...

MedicinePhysicsComputer Science

Cluster state generation in one-dimensional Kitaev honeycomb model via shortcut to adiabaticity

T. Kyaw, L. Kwek·Dec 19, 2017

We propose a mean to obtain computationally useful resource states also known as cluster states, for measurement-based quantum computation, via transitionless quantum driving algorithm. The idea is to cool the system to its unique ground state and tu...

PhysicsMathematics

Quantum Artificial Life in an IBM Quantum Computer

U. Alvarez-Rodriguez, M. Sanz, L. Lamata +1 more·Nov 26, 2017

We present the first experimental realization of a quantum artificial life algorithm in a quantum computer. The quantum biomimetic protocol encodes tailored quantum behaviors belonging to living systems, namely, self-replication, mutation, interactio...

MathematicsComputer ScienceMedicinePhysics

Molecular spin qudits for quantum algorithms.

E. Moreno‐Pineda, C. Godfrin, F. Balestro +2 more·Nov 20, 2017

Presently, one of the most ambitious technological goals is the development of devices working under the laws of quantum mechanics. One prominent target is the quantum computer, which would allow the processing of information at quantum level for pur...

MedicinePhysicsComputer Science

A small quantum computer is needed to optimize fault-tolerant protocols

Pavithran Iyer, D. Poulin·Nov 13, 2017

As far as we know, a useful quantum computer will require fault-tolerant gates, and existing schemes demand a prohibitively large space and time overhead. We argue that a first generation quantum computer will be very valuable to design, test, and op...

PhysicsComputer ScienceMathematics

Crosstalk error correction through dynamical decoupling of single-qubit gates in capacitively coupled singlet-triplet semiconductor spin qubits

Donovan Buterakos, R. Throckmorton, S. Das Sarma·Nov 6, 2017

In addition to magnetic field and electric charge noise adversely affecting spin qubit operations, performing single-qubit gates on one of multiple coupled singlet-triplet qubits presents a new challenge---crosstalk, which is inevitable (and must be ...

Physics

Quantum criticality and state engineering in the simulated anisotropic quantum Rabi model

Yimin Wang, W. You, Maoxin Liu +4 more·Oct 24, 2017

Promising applications of the anisotropic quantum Rabi model (AQRM) in broad parameter ranges are explored, which is realized with superconducting flux qubits simultaneously driven by two-tone time-dependent magnetic fields. Regarding the quantum pha...

PhysicsMathematics

Proposal for Quantum Simulation via All-Optically-Generated Tensor Network States.

Ish Dhand, M. Engelkemeier, L. Sansoni +3 more·Oct 17, 2017

We devise an all-optical scheme for the generation of entangled multimode photonic states encoded in temporal modes of light. The scheme employs a nonlinear down-conversion process in an optical loop to generate one- and higher-dimensional tensor net...

PhysicsMedicine

Heralded entangling quantum gate via cavity-assisted photon scattering

H. Borges, D. Z. Rossatto, F. S. Luiz +1 more·Oct 17, 2017

We theoretically investigate the generation of heralded entanglement between two identical atoms via cavity-assisted photon scattering in two different configurations, namely either both atoms confined in the same cavity or trapped into locally separ...

MathematicsPhysics

Adiabatic passage of radio-frequency-assisted Förster resonances in Rydberg atoms for two-qubit gates and the generation of Bell states

I. Beterov, G. Hamzina, E. Yakshina +3 more·Oct 12, 2017

High-fidelity entangled Bell states are of great interest in quantum physics. Entanglement of ultracold neutral atoms in two spatially separated optical dipole traps is promising for implementation of quantum computing and quantum simulation and for ...

Physics

A quantum light-emitting diode for the standard telecom window around 1,550 nm

T. Müller, J. Skiba-Szymanska, A. Krysa +9 more·Oct 10, 2017

Single photons and entangled photon pairs are a key resource of many quantum secure communication and quantum computation protocols, and non-Poissonian sources emitting in the low-loss wavelength region around 1,550 nm are essential for the developme...

PhysicsMedicine

Learning hard quantum distributions with variational autoencoders

Andrea Rocchetto, Edward Grant, Sergii Strelchuk +2 more·Oct 2, 2017

The exact description of many-body quantum systems represents one of the major challenges in modern physics, because it requires an amount of computational resources that scales exponentially with the size of the system. Simulating the evolution of a...

PhysicsMathematicsComputer Science

Efficient quantum pseudorandomness with simple graph states

R. Mezher, J. Ghalbouni, J. Dgheim +1 more·Sep 23, 2017

Measurement based (MB) quantum computation allows for universal quantum computing by measuring individual qubits prepared in entangled multipartite states, known as graph states. Unless corrected for, the randomness of the measurements leads to the g...

PhysicsMathematics
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