Search Results - "Guha, Saikat"
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1
Percolation thresholds for photonic quantum computing
Published in Nature communications (06-03-2019)“…Despite linear-optical fusion (Bell measurement) being probabilistic, photonic cluster states for universal quantum computation can be prepared without…”
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2
Covert Communication in the Presence of an Uninformed Jammer
Published in IEEE transactions on wireless communications (01-09-2017)“…Recent work has established that when transmitter Alice wishes to communicate reliably to recipient Bob without detection by warden Willie, with additive white…”
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3
Routing entanglement in the quantum internet
Published in npj quantum information (13-03-2019)“…Remote quantum entanglement can enable numerous applications including distributed quantum computation, secure communication, and precision sensing. We…”
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Quantum repeaters based on concatenated bosonic and discrete-variable quantum codes
Published in npj quantum information (22-06-2021)“…We propose an architecture of quantum-error-correction-based quantum repeaters that combines techniques used in discrete- and continuous-variable quantum…”
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Continuous-variable quantum repeater based on quantum scissors and mode multiplexing
Published in Physical review research (13-03-2020)“…Quantum repeaters are indispensable for high-rate, long-distance quantum communications. The vision of a future quantum internet strongly hinges on realizing…”
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Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer
Published in Quantum (Vienna, Austria) (04-02-2021)“…Photonics is the platform of choice to build a modular, easy-to-network quantum computer operating at room temperature. However, no concrete architecture has…”
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Fundamental rate-loss tradeoff for optical quantum key distribution
Published in Nature communications (24-10-2014)Get full text
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8
A single shot coherent Ising machine based on a network of injection-locked multicore fiber lasers
Published in Nature communications (06-08-2019)“…Combinatorial optimization problems over large and complex systems have many applications in social networks, image processing, artificial intelligence,…”
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On the Stochastic Analysis of a Quantum Entanglement Distribution Switch
Published in IEEE transactions on quantum engineering (2021)“…In this article, we study a quantum entanglement distribution switch that serves <inline-formula><tex-math notation="LaTeX">k</tex-math></inline-formula> users…”
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Bayesian quantum phase estimation with fixed photon states
Published in Quantum information processing (28-10-2024)“…We consider a two-mode bosonic state with fixed photon number n ∈ N , whose upper and lower modes pick up a phase ϕ and - ϕ , respectively. We compute the…”
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Development of Quantum Interconnects (QuICs) for Next-Generation Information Technologies
Published in PRX quantum (24-02-2021)“…Just as “classical” information technology rests on a foundation built of interconnected information-processing systems, quantum information technology (QIT)…”
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12
Phonon-induced decoherence in color-center qubits
Published in Physical review research (01-01-2024)“…Electron spin states of solid-state defects such as nitrogen- and silicon-vacancy in diamond are a leading quantum-memory candidate for quantum communications…”
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13
Entanglement generation in a quantum network at distance-independent rate
Published in npj quantum information (06-05-2022)“…We develop a protocol for entanglement generation in the quantum internet that allows a repeater node to use n -qubit Greenberger-Horne-Zeilinger (GHZ)…”
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14
Impossibility to produce arbitrary non-Gaussian states using zero-mean Gaussian states and partial photon number resolving detection
Published in Physical review research (01-12-2021)“…Gaussian states and measurements collectively are not powerful-enough resources for quantum computing, as any Gaussian dynamics can be simulated efficiently,…”
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15
Quantum receiver enhanced by adaptive learning
Published in Light, science & applications (08-12-2022)“…Quantum receivers aim to effectively navigate the vast quantum-state space to endow quantum information processing capabilities unmatched by classical…”
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Entangling quantum memories via heralded photonic Bell measurement
Published in Physical review research (01-09-2023)“…A common way to entangle quantum memories is via photonic entanglement swaps. Each of two memories, connected by an optical channel, emits a photonic qubit…”
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17
Quantum limits of parameter estimation in long-baseline imaging
Published in Physical review research (01-02-2024)“…Telescope systems with distributed apertures are a well-established approach for boosting resolution in astronomical imaging. However, theoretical limits on…”
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18
Convolutional and Tail-Biting Quantum Error-Correcting Codes
Published in IEEE transactions on information theory (01-03-2007)“…Rate-(n-2)/n unrestricted and CSS-type quantum convolutional codes with up to 4096 states and minimum distances up to 10 are constructed as stabilizer codes…”
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Entanglement-assisted capacity regions and protocol designs for quantum multiple-access channels
Published in npj quantum information (19-05-2021)“…We solve the entanglement-assisted (EA) classical capacity region of quantum multiple-access channels (MACs) with an arbitrary number of senders. As an…”
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Belief propagation with quantum messages for quantum-enhanced classical communications
Published in npj quantum information (15-06-2021)“…For space-based laser communications, when the mean photon number per received optical pulse is much smaller than one, there is a large gap between…”
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