QuICS
QuICS
  • Видео 263
  • Просмотров 163 024
Ivan Rojkov: Stabilization of cat-state manifolds using nonlinear reservoir engineering
Reservoir engineering has become valuable for preparing and stabilizing quantum systems. Notably, it has enabled the demonstration of dissipatively stabilized Schrödinger’s cat qubits through engineered two-photon loss which are interesting candidates for bosonic error-corrected quantum computation. Reservoir engineering is however limited to simple operators often derived from weak low-order expansions of some native system Hamiltonians. In this talk, I will introduce a novel reservoir engineering approach for stabilizing multi-component Schrödinger’s cat states. The fundamental principle of the method lies in the destructive interference at crossings of gain and loss Hamiltonian terms i...
Просмотров: 95

Видео

Marcos Crichigno: Quantum Spin Chains and Symmetric Functions
Просмотров 1752 месяца назад
I’ll tell you how quantum spin chains, some of the simplest quantum mechanical systems, encode a number of solutions to problems in representation theory, combinatorics, and algebraic geometry. This is revealed by the quantum integrability of the spin chains and the theory of (quantized) symmetric functions. This suggests a program to uncover the computational complexity of these computational ...
Kenneth Rudinger: QCVV: Making Quantum Computers Less Broken
Просмотров 1403 месяца назад
Quantum computing hardware capabilities have grown tremendously over the past decade, as evidenced by demonstrations of both quantum advantage and error-corrected logical qubits. These breakthroughs have been driven, in part, by advances in quantum characterization, verification, and validation (QCVV). I will discuss how QCVV provides a hardware-agnostic framework for assessing the performance ...
Narayanan Rengaswamy: Tailoring Fault-Tolerance to Quantum Algorithms
Просмотров 983 месяца назад
The standard approach to universal fault-tolerant quantum computing is to develop a general-purpose quantum error correction mechanism that can implement a universal set of logical gates fault-tolerantly. Given such a scheme, any quantum algorithm can be realized fault-tolerantly by composing the relevant logical gates from this set. However, we know that quantum computers provide a significant...
Timur Tscherbul: JQI-QuICS Special Seminar
Просмотров 643 месяца назад
Controlling quantum ergodicity in molecules large and small: From C60 to ultracold alkali dimers Quantum ergodicity refers to the remarkable ability of quantum systems to explore their entire state space allowed by symmetry. Mechanisms for violating ergodicity are of fundamental interest in statistical and molecular physics and can offer novel insights into decoherence phenomena in complex mole...
Anatoly Dymarsky: Classical and quantum codes, 2d CFTs and holography
Просмотров 2066 месяцев назад
There is a rich connection between classical and quantum codes and holographic correspondence connecting 2d CFTs and abelian 3d Chern-Simons theories. In the 3d language the codes emerge as a way to parametrize condensable anyons. Upon condensation 3d topological field theory gives rise to 2d CFT at the boundary. This provides a way to construct 2d CFTs from codes - the so called "code CFTs." T...
Carleton Coffrin: Some Unexpected Applications of Analog Quantum Computers
Просмотров 1887 месяцев назад
Demonstrations of quantum advantage for random circuit and boson sampling over the past few years have generated considerable excitement for the future of quantum computing and has further spurred the development of a wide range of gate-based digital quantum computers, which represent quantum programs as a sequence of quantum gates acting on one and two qubits. Amongst this excitement, analog q...
Alexander Kwiatkowski: Optimized experiment design and analysis for fully randomized benchmarking
Просмотров 1429 месяцев назад
Randomized benchmarking (RB) is a widely used strategy to assess the quality of available quantum gates in a computational context. The quality is usually expressed as an effective depolarizing error per step. RB involves applying random sequences of gates to an initial state and making a final measurement to determine the probability of an error. Current implementations of RB estimate this pro...
Roger Mong: Measurement Quantum Cellular Automata and Anomalies in Floquet Codes
Просмотров 24710 месяцев назад
Quantum measurements are critical to virtually any aspect of quantum information processing for example: quantum error correction, distillation protocols, or state preparation. We discuss the evolution of quantum information under Pauli measurement circuits. We define "local reversibility" in context of measurement circuits, which guarantees that quantum information is preserved and remain "loc...
Yu Tong: Recent progress in Hamiltonian learning
Просмотров 42510 месяцев назад
In the last few years, a number of works have proposed and improved provably efficient algorithms for learning the Hamiltonian from real-time dynamics. In this talk, I will first provide an overview of these developments, and then discuss how the Heisenberg limit, the fundamental precision limit imposed by quantum mechanics, can be reached for this task. I will show that reaching the Heisenberg...
Ryan O'Donnell:New directions in quantum state learning and testing
Просмотров 68011 месяцев назад
I will talk about: . New efficient algorithms for quantum state tomography (the quantum analogue of estimating a probability distribution). . Why you should care about the difference between total variation distance and Hellinger distance and KL divergence and chi-squared divergence. . Quantum-inspired improvements to the classical problem of independence testing. Includes joint work with Steve...
PQCrypto 2023: Session VII: Faulting WOTS to forge LMS, XMSS, or SPHINCS+ signatures (A. Wagner)
Просмотров 40311 месяцев назад
PQCrypto 2023 - The 14th International Conference on Post-Quantum Cryptography Session VII: Hardware and Side Channels Faulting Winternitz One-Time Signatures to forge LMS, XMSS, or SPHINCS signatures Alexander Wagner, Vera Wesselkamp, Felix Oberhansl, Marc Schink and Emanuele Strieder
PQCrypto 2023: Session VII: Side-Channel Analysis of Dilithium in Hardware (Georg Land)
Просмотров 16111 месяцев назад
PQCrypto 2023 - The 14th International Conference on Post-Quantum Cryptography Session VII: Hardware and Side Channels Breaking and Protecting the Crystal: Side-Channel Analysis of Dilithium in Hardware Hauke Steffen, Georg Land, Lucie Kogelheide and Tim Güneysu
PQCrypto 2023: Session VII: WrapQ: Side-Channel Secure Key Management (Markku-Juhani O. Saarinen)
Просмотров 6511 месяцев назад
PQCrypto 2023 - The 14th International Conference on Post-Quantum Cryptography Session VII: Hardware and Side Channels WrapQ: Side-Channel Secure Key Management for Post-Quantum Cryptography Markku-Juhani O. Saarinen
PQCrypto 2023: Session VII: Hardware Implementation of LESS (Luke Beckwith and Robert Wallace)
Просмотров 8311 месяцев назад
PQCrypto 2023 - The 14th International Conference on Post-Quantum Cryptography Session VII: Hardware and Side Channels A High-Performance Hardware Implementation of the LESS Digital Signature Scheme Luke Beckwith, Robert Wallace, Kamyar Mohajerani and Kris Gaj
PQCrypto 2023: Invited Talk: New algebraic attacks on the McEliece cryptosystem (Jean-Pierre Tillich
Просмотров 28211 месяцев назад
PQCrypto 2023: Invited Talk: New algebraic attacks on the McEliece cryptosystem (Jean-Pierre Tillich
PQCrypto 2023: Session VI: New NTRU Records with Improved Lattice Bases (Julian Nowakowski)
Просмотров 7811 месяцев назад
PQCrypto 2023: Session VI: New NTRU Records with Improved Lattice Bases (Julian Nowakowski)
PQCrypto 2023: Session VI: Multi-positional mismatch attacks against Kyber & Saber (Erik Mårtensson)
Просмотров 7011 месяцев назад
PQCrypto 2023: Session VI: Multi-positional mismatch attacks against Kyber & Saber (Erik Mårtensson)
PQCrypto 2023: Session VI: Overbeck’s attack and Twisted Gabidulin-based schemes (Ilaria Zappatore)
Просмотров 5211 месяцев назад
PQCrypto 2023: Session VI: Overbeck’s attack and Twisted Gabidulin-based schemes (Ilaria Zappatore)
PQCrypto 2023: Session V: Muckle+: End-to-End Hybrid Authenticated Key Exchange (Christoph Striecks)
Просмотров 11111 месяцев назад
PQCrypto 2023: Session V: Muckle : End-to-End Hybrid Authenticated Key Exchange (Christoph Striecks)
PQCrypto 2023: Session V: Hash-based Direct Anonymous Attestation (Liqun Chen)
Просмотров 6911 месяцев назад
PQCrypto 2023: Session V: Hash-based Direct Anonymous Attestation (Liqun Chen)
PQCrypto 2023: Session V: Post-Quantum Signatures in DNSSEC (Jason Goertzen)
Просмотров 10511 месяцев назад
PQCrypto 2023: Session V: Post-Quantum Signatures in DNSSEC (Jason Goertzen)
PQCrypto 2023: Invited Talk: PQC at Google (Sophie Schmieg)
Просмотров 53711 месяцев назад
PQCrypto 2023: Invited Talk: PQC at Google (Sophie Schmieg)
PQCrypto 2023: Session IV: On the Quantum Security of HAWK (Yu-Hsuan Huang)
Просмотров 12611 месяцев назад
PQCrypto 2023: Session IV: On the Quantum Security of HAWK (Yu-Hsuan Huang)
PQCrypto 2023: Session IV: qIND-qCPA (In)security of CBC, CFB... Modes of Operation (Tristan Nemoz)
Просмотров 9011 месяцев назад
PQCrypto 2023: Session IV: qIND-qCPA (In)security of CBC, CFB... Modes of Operation (Tristan Nemoz)
PQCrypto 2023: Invited Talk: Post-Quantum Signatures from Multiparty Computation (Thibauld Feneuil)
Просмотров 26011 месяцев назад
PQCrypto 2023: Invited Talk: Post-Quantum Signatures from Multiparty Computation (Thibauld Feneuil)
PQCrypto 2023: Session III: Non-Observable Quantum Random Oracle Model (Varun Maram)
Просмотров 6011 месяцев назад
PQCrypto 2023: Session III: Non-Observable Quantum Random Oracle Model (Varun Maram)
PQCrypto 2023: Session III: Time and Query Complexity of Dihedral Cosets (André Schrottenloher)
Просмотров 3211 месяцев назад
PQCrypto 2023: Session III: Time and Query Complexity of Dihedral Cosets (André Schrottenloher)
PQCrypto 2023: Session III: Classical & quantum sieves to solve SVP with low memory (Johanna Loyer)
Просмотров 4311 месяцев назад
PQCrypto 2023: Session III: Classical & quantum sieves to solve SVP with low memory (Johanna Loyer)
PQCrypto 2023: Session II: NTWE: A Natural Combination of NTRU and LWE (Joel Gärtner)
Просмотров 7511 месяцев назад
PQCrypto 2023: Session II: NTWE: A Natural Combination of NTRU and LWE (Joel Gärtner)

Комментарии

  • @jxchtajxbt53
    @jxchtajxbt53 5 лет назад

    Thanks for making this available

  • @neveralonewLamps
    @neveralonewLamps 6 лет назад

    there's a huge chandelier in the way. Thanks Sia

    • @VivekAnandJ
      @VivekAnandJ 2 года назад

      Took me a second but I spit out my metaphorical coffee! Thanks for the laugh 🤪

  • @tokajileo5928
    @tokajileo5928 8 лет назад

    if i pass the event horizon and look outside, what can I see? if my 1 second behind the event horizon is more than the evaporation time of the black hole considering the outside time, there is no blackhole ! so it means there is only a horizon, no inside of black hole and when i reach the horizon I evaporate immediately (in my timeframe).