核心数学原理
在波动力学中,波函数的演化遵循薛定谔方程:
i\\hbar\\frac{\\partial \\psi}{\\partial t} = \\hat{H}\\psi
在离散化后,时间演化可以表示为:
\\psi(t+\\Delta t) = e\^{-i\\hat{H}\\Delta t/\\hbar}\\psi(t)
这本质上是一个幺正变换 ,可以用矩阵指数表示。我们的关键洞见是:将语言序列视为量子态,用波函数演化来模拟信息处理过程。
1. 波函数表示层(Wave Representation Layer)
python
import torch
import torch.nn as nn
import torch.nn.functional as F
import numpy as np
import math
class QuantumStateEncoding(nn.Module):
"""
将离散的词嵌入编码为连续波函数
"""
def __init__(self, vocab_size, hidden_dim, n_qubits=8):
super().__init__()
self.vocab_size = vocab_size
self.hidden_dim = hidden_dim
self.n_qubits = n_qubits
# 波函数参数:振幅和相位
self.amplitude_embedding = nn.Embedding(vocab_size, hidden_dim)
self.phase_embedding = nn.Embedding(vocab_size, hidden_dim)
# 频率基础,类似量子谐振子
self.frequencies = nn.Parameter(torch.linspace(1.0, 10.0, hidden_dim))
def forward(self, token_ids):
"""
将词ID转换为波函数表示
[batch, seq_len] -> [batch, seq_len, hidden_dim, 2] (实部和虚部)
"""
batch_size, seq_len = token_ids.shape
# 获取振幅和相位
amplitude = self.amplitude_embedding(token_ids) # [batch, seq_len, hidden_dim]
phase = self.phase_embedding(token_ids) # [batch, seq_len, hidden_dim]
# 构造复数波函数
# ψ(x) = amplitude * exp(i * (freq * x + phase))
positions = torch.arange(hidden_dim, device=token_ids.device).float()
# 实部:amplitude * cos(freq * x + phase)
# 虚部:amplitude * sin(freq * x + phase)
x = positions.unsqueeze(0).unsqueeze(0) # [1, 1, hidden_dim]
freq = self.frequencies.unsqueeze(0).unsqueeze(0) # [1, 1, hidden_dim]
# 扩展维度
amplitude = amplitude.unsqueeze(-1) # [batch, seq_len, hidden_dim, 1]
phase = phase.unsqueeze(-1) # [batch, seq_len, hidden_dim, 1]
# 波函数
real_part = amplitude * torch.cos(freq.unsqueeze(-1) * x.unsqueeze(-1) + phase)
imag_part = amplitude * torch.sin(freq.unsqueeze(-1) * x.unsqueeze(-1) + phase)
# 合并实部和虚部
wave_function = torch.stack([real_part, imag_part], dim=-1) # [batch, seq_len, hidden_dim, 2]
return wave_function
2. 波函数演化层(Wave Evolution Layer)
python
class SchrodingerEvolution(nn.Module):
"""
模拟薛定谔方程演化
dψ/dt = -iHψ
"""
def __init__(self, hidden_dim, n_frequencies=8):
super().__init__()
self.hidden_dim = hidden_dim
# 哈密顿量参数化
# H = 动能 + 势能
self.kinetic = nn.Parameter(torch.randn(hidden_dim, hidden_dim) * 0.01)
self.potential = nn.Parameter(torch.randn(hidden_dim, hidden_dim) * 0.01)
# 时间步长
self.dt = nn.Parameter(torch.tensor(0.1))
# 非线性势场
self.nonlinear_potential = nn.Sequential(
nn.Linear(hidden_dim * 2, hidden_dim * 4),
nn.Tanh(),
nn.Linear(hidden_dim * 4, hidden_dim)
)
def construct_hamiltonian(self, psi):
"""
构造哈密顿量矩阵
H = p²/2m + V(x) + V_nonlinear(|ψ|²)
"""
batch_size, seq_len, hidden_dim, _ = psi.shape
# 基本哈密顿量(复数矩阵)
H_base = self.kinetic + self.potential
# 非线性势:依赖于波函数密度 |ψ|²
psi_mag = torch.norm(psi, dim=-1) # [batch, seq_len, hidden_dim]
psi_flat = psi_mag.view(-1, hidden_dim)
# 非线性势能
V_nl = self.nonlinear_potential(
torch.cat([psi_flat, psi_flat**2], dim=-1)
)
V_nl = V_nl.view(batch_size, seq_len, hidden_dim, 1)
# 构造完整的哈密顿量矩阵
H_real = H_base.unsqueeze(0).unsqueeze(0) # [1, 1, hidden_dim, hidden_dim]
H_imag = torch.zeros_like(H_real)
# 添加非线性势到对角元
diag_mask = torch.eye(hidden_dim, device=psi.device)
H_real = H_real + diag_mask.unsqueeze(0).unsqueeze(0) * V_nl.unsqueeze(-1)
H = torch.stack([H_real, H_imag], dim=-1) # [batch, seq_len, hidden_dim, hidden_dim, 2]
return H
def forward(self, psi, steps=1):
"""
执行波函数演化
ψ(t+dt) = exp(-iH dt) ψ(t)
"""
batch_size, seq_len, hidden_dim, _ = psi.shape
for _ in range(steps):
# 构造哈密顿量
H = self.construct_hamiltonian(psi) # [batch, seq_len, hidden_dim, hidden_dim, 2]
# 将波函数展平以进行矩阵乘法
psi_flat = psi.view(batch_size * seq_len, hidden_dim, 2)
H_flat = H.view(batch_size * seq_len, hidden_dim, hidden_dim, 2)
# 复数矩阵乘法:Hψ
# 实部: H_real·ψ_real - H_imag·ψ_imag
# 虚部: H_real·ψ_imag + H_imag·ψ_real
H_real = H_flat[..., 0]
H_imag = H_flat[..., 1]
psi_real = psi_flat[..., 0]
psi_imag = psi_flat[..., 1]
H_psi_real = torch.matmul(H_real, psi_real.unsqueeze(-1)).squeeze(-1) - \
torch.matmul(H_imag, psi_imag.unsqueeze(-1)).squeeze(-1)
H_psi_imag = torch.matmul(H_real, psi_imag.unsqueeze(-1)).squeeze(-1) + \
torch.matmul(H_imag, psi_real.unsqueeze(-1)).squeeze(-1)
H_psi = torch.stack([H_psi_real, H_psi_imag], dim=-1)
# 时间演化:ψ(t+dt) = ψ(t) - i dt H ψ(t)
dt = self.dt
psi_new_real = psi_flat[..., 0] - dt * H_psi[..., 1]
psi_new_imag = psi_flat[..., 1] + dt * H_psi[..., 0]
psi_flat = torch.stack([psi_new_real, psi_new_imag], dim=-1)
psi = psi_flat.view(batch_size, seq_len, hidden_dim, 2)
# 归一化波函数
psi_norm = torch.norm(psi, dim=-1, keepdim=True) + 1e-8
psi = psi / psi_norm
return psi
3. 波函数干涉层(Wave Interference Layer)
python
class WaveInterference(nn.Module):
"""
波函数干涉:多个波函数叠加产生干涉图案
这相当于自注意力机制的波函数版本
"""
def __init__(self, hidden_dim, n_waves=4):
super().__init__()
self.hidden_dim = hidden_dim
self.n_waves = n_waves
# 干涉权重
self.interference_weights = nn.Parameter(
torch.randn(n_waves, hidden_dim, hidden_dim) * 0.01
)
# 相位调制
self.phase_shift = nn.Parameter(torch.randn(n_waves, hidden_dim) * 0.1)
def forward(self, psi_list):
"""
多个波函数干涉叠加
psi_list: list of wave functions, each [batch, seq_len, hidden_dim, 2]
返回干涉后的波函数
"""
batch_size, seq_len, hidden_dim, _ = psi_list[0].shape
# 初始化干涉结果
psi_interfered = torch.zeros(batch_size, seq_len, hidden_dim, 2,
device=psi_list[0].device)
for i, psi in enumerate(psi_list):
# 应用相位偏移
phase_shift = self.phase_shift[i] # [hidden_dim]
# 构造相位旋转矩阵
cos_shift = torch.cos(phase_shift).view(1, 1, hidden_dim, 1)
sin_shift = torch.sin(phase_shift).view(1, 1, hidden_dim, 1)
# 旋转波函数
psi_real = psi[..., 0]
psi_imag = psi[..., 1]
psi_rotated_real = psi_real * cos_shift - psi_imag * sin_shift
psi_rotated_imag = psi_real * sin_shift + psi_imag * cos_shift
psi_rotated = torch.stack([psi_rotated_real, psi_rotated_imag], dim=-1)
# 应用干涉权重(复数矩阵乘法)
weight = self.interference_weights[i] # [hidden_dim, hidden_dim]
# 展平
psi_flat = psi_rotated.view(batch_size * seq_len, hidden_dim, 2)
# 复数线性变换
psi_real = psi_flat[..., 0] # [batch*seq_len, hidden_dim]
psi_imag = psi_flat[..., 1]
# 实部: W·ψ_real
# 虚部: W·ψ_imag
transformed_real = torch.matmul(psi_real, weight.T)
transformed_imag = torch.matmul(psi_imag, weight.T)
psi_transformed = torch.stack([transformed_real, transformed_imag], dim=-1)
psi_transformed = psi_transformed.view(batch_size, seq_len, hidden_dim, 2)
# 叠加到干涉结果
psi_interfered = psi_interfered + psi_transformed
# 归一化干涉结果
norm = torch.norm(psi_interfered, dim=-1, keepdim=True) + 1e-8
psi_interfered = psi_interfered / norm
return psi_interfered
4. 波函数残差模块(Wave Residual Block)
python
class WaveResidualBlock(nn.Module):
"""
波函数残差模块:多个波函数演化+干涉
"""
def __init__(self, hidden_dim, n_evolutions=3, n_interference_waves=4):
super().__init__()
self.hidden_dim = hidden_dim
# 多个演化层
self.evolutions = nn.ModuleList([
SchrodingerEvolution(hidden_dim) for _ in range(n_evolutions)
])
# 干涉层
self.interference = WaveInterference(hidden_dim, n_interference_waves)
# 波函数门控
self.gate = nn.Sequential(
nn.Linear(hidden_dim * 2, hidden_dim * 4),
nn.Tanh(),
nn.Linear(hidden_dim * 4, hidden_dim * 2)
)
def forward(self, psi):
"""
输入: 波函数 [batch, seq_len, hidden_dim, 2]
输出: 处理后的波函数
"""
residual = psi
# 多步演化
evolved_waves = []
for evolution in self.evolutions:
psi = evolution(psi, steps=2)
evolved_waves.append(psi.clone())
# 波函数干涉
psi = self.interference(evolved_waves)
# 波函数门控(类似LSTM的门控机制)
psi_mag = torch.norm(psi, dim=-1) # [batch, seq_len, hidden_dim]
residual_mag = torch.norm(residual, dim=-1)
combined = torch.cat([psi_mag, residual_mag], dim=-1)
gate_values = self.gate(combined) # [batch, seq_len, hidden_dim*2]
gate_real, gate_imag = gate_values.chunk(2, dim=-1)
# 应用门控
psi_real = psi[..., 0]
psi_imag = psi[..., 1]
res_real = residual[..., 0]
res_imag = residual[..., 1]
# 门控组合
output_real = gate_real * psi_real + (1 - gate_real) * res_real
output_imag = gate_imag * psi_imag + (1 - gate_imag) * res_imag
output = torch.stack([output_real, output_imag], dim=-1)
return output
5. 波函数测量与解码(Wave Measurement)
python
class WaveMeasurement(nn.Module):
"""
波函数测量:将波函数坍缩为概率分布
"""
def __init__(self, hidden_dim, vocab_size):
super().__init__()
self.hidden_dim = hidden_dim
self.vocab_size = vocab_size
# 测量算符
self.measurement_operators = nn.Parameter(
torch.randn(vocab_size, hidden_dim, hidden_dim) * 0.01
)
# 相位敏感测量
self.phase_measure = nn.Sequential(
nn.Linear(hidden_dim * 2, hidden_dim * 4),
nn.ReLU(),
nn.Linear(hidden_dim * 4, vocab_size)
)
def forward(self, psi, measurement_type="expectation"):
"""
测量波函数,得到词的概率分布
"""
batch_size, seq_len, hidden_dim, _ = psi.shape
if measurement_type == "expectation":
# 期望值测量
psi_flat = psi.view(batch_size * seq_len, hidden_dim, 2)
# 构造密度矩阵 ρ = |ψ⟩⟨ψ|
psi_real = psi_flat[..., 0] # [batch*seq_len, hidden_dim]
psi_imag = psi_flat[..., 1]
# 密度矩阵的实部和虚部
rho_real = torch.matmul(psi_real.unsqueeze(-1), psi_real.unsqueeze(-2)) - \
torch.matmul(psi_imag.unsqueeze(-1), psi_imag.unsqueeze(-2))
rho_imag = torch.matmul(psi_real.unsqueeze(-1), psi_imag.unsqueeze(-2)) + \
torch.matmul(psi_imag.unsqueeze(-1), psi_real.unsqueeze(-2))
# 计算每个测量算符的期望值
logits = []
for i in range(self.vocab_size):
M = self.measurement_operators[i] # [hidden_dim, hidden_dim]
# Tr(Mρ) = Tr(M_real ρ_real - M_imag ρ_imag) + i Tr(M_real ρ_imag + M_imag ρ_real)
# 我们只取实部作为测量结果
expectation_real = torch.trace(torch.matmul(M, rho_real)) - \
torch.trace(torch.matmul(torch.zeros_like(M), rho_imag))
logits.append(expectation_real)
logits = torch.stack(logits, dim=-1) # [batch*seq_len, vocab_size]
logits = logits.view(batch_size, seq_len, self.vocab_size)
else: # "amplitude" 测量
# 基于振幅的测量
psi_mag = torch.norm(psi, dim=-1) # [batch, seq_len, hidden_dim]
psi_phase = torch.atan2(psi[..., 1], psi[..., 0]) # [batch, seq_len, hidden_dim]
# 合并振幅和相位信息
combined = torch.cat([psi_mag, torch.sin(psi_phase), torch.cos(psi_phase)], dim=-1)
combined = combined.view(batch_size * seq_len, -1)
# 通过神经网络得到logits
logits = self.phase_measure(combined) # [batch*seq_len, vocab_size]
logits = logits.view(batch_size, seq_len, self.vocab_size)
return logits
6. 完整的波动力学语言模型(WDLM)
python
class WaveDynamicsLanguageModel(nn.Module):
"""
完整的波动力学语言模型
完全脱离Transformer架构,基于波函数演化
"""
def __init__(self, vocab_size, hidden_dim=512, num_layers=12,
n_qubits=8, n_waves=4):
super().__init__()
self.vocab_size = vocab_size
self.hidden_dim = hidden_dim
self.num_layers = num_layers
# 1. 波函数编码
self.wave_encoder = QuantumStateEncoding(vocab_size, hidden_dim, n_qubits)
# 2. 波函数处理层堆叠
self.wave_layers = nn.ModuleList([
WaveResidualBlock(hidden_dim, n_evolutions=3, n_interference_waves=n_waves)
for _ in range(num_layers)
])
# 3. 波函数测量(解码)
self.measurement = WaveMeasurement(hidden_dim, vocab_size)
# 4. 波函数初始化(特殊token)
self.bos_wave = nn.Parameter(torch.randn(1, 1, hidden_dim, 2) * 0.01)
self.eos_wave = nn.Parameter(torch.randn(1, 1, hidden_dim, 2) * 0.01)
def forward(self, input_ids, attention_mask=None):
"""
前向传播
input_ids: [batch, seq_len]
返回: logits [batch, seq_len, vocab_size]
"""
batch_size, seq_len = input_ids.shape
# 1. 编码为波函数
psi = self.wave_encoder(input_ids) # [batch, seq_len, hidden_dim, 2]
# 2. 通过波函数层
for layer in self.wave_layers:
psi = layer(psi)
# 波函数归一化
psi_norm = torch.norm(psi, dim=-1, keepdim=True) + 1e-8
psi = psi / psi_norm
# 3. 测量得到logits
logits = self.measurement(psi, measurement_type="amplitude")
return logits
def generate(self, input_ids, max_length=100, temperature=1.0, top_k=50):
"""
自回归生成
"""
self.eval()
generated = input_ids
for _ in range(max_length):
# 获取当前上下文
context = generated[:, -self.wave_encoder.vocab_size:]
# 前向传播
with torch.no_grad():
logits = self.forward(context)
next_token_logits = logits[:, -1, :] / temperature
# 应用top-k过滤
if top_k is not None:
top_k_logits, top_k_indices = torch.topk(next_token_logits, top_k, dim=-1)
min_val = top_k_logits[:, -1].unsqueeze(-1)
next_token_logits = torch.where(
next_token_logits < min_val,
torch.full_like(next_token_logits, -float('inf')),
next_token_logits
)
# 采样
probabilities = F.softmax(next_token_logits, dim=-1)
next_token = torch.multinomial(probabilities, num_samples=1)
# 添加到序列
generated = torch.cat([generated, next_token], dim=-1)
# 如果生成了EOS,停止
if (next_token == 2).any(): # 假设2是EOS token
break
return generated
def wave_function_similarity(self, psi1, psi2):
"""
计算两个波函数之间的相似度(内积的模)
"""
# 展平
psi1_flat = psi1.view(-1, psi1.shape[-2] * 2) # 实部和虚部拼接
psi2_flat = psi2.view(-1, psi2.shape[-2] * 2)
# 计算内积
inner_product = torch.sum(psi1_flat * psi2_flat, dim=-1)
# 归一化
norm1 = torch.norm(psi1_flat, dim=-1)
norm2 = torch.norm(psi2_flat, dim=-1)
similarity = inner_product / (norm1 * norm2 + 1e-8)
return similarity
7. 训练策略与损失函数
python
class WaveLanguageModelLoss(nn.Module):
"""
波函数语言模型的特殊损失函数
结合交叉熵和波函数正则化
"""
def __init__(self, alpha=0.1, beta=0.01):
super().__init__()
self.alpha = alpha # 正则化强度
self.beta = beta # 波函数平滑性正则化
# 标准交叉熵损失
self.ce_loss = nn.CrossEntropyLoss()
def wave_function_regularization(self, psi):
"""
波函数正则化项:
1. 归一化约束
2. 平滑性约束
3. 能量最小化
"""
batch_size, seq_len, hidden_dim, _ = psi.shape
# 1. 归一化损失:波函数应保持归一化
norm = torch.norm(psi, dim=-1) # [batch, seq_len, hidden_dim]
norm_loss = torch.mean((norm - 1.0) ** 2)
# 2. 平滑性损失:相邻位置的波函数应平滑变化
psi_real = psi[..., 0]
psi_imag = psi[..., 1]
# 计算梯度
grad_real = torch.diff(psi_real, dim=1) # 序列方向的差分
grad_imag = torch.diff(psi_imag, dim=1)
smoothness_loss = torch.mean(grad_real ** 2) + torch.mean(grad_imag ** 2)
# 3. 能量最小化(类似基态)
# 计算"动能":梯度的平方
energy_loss = smoothness_loss
return norm_loss + self.beta * smoothness_loss + 0.5 * energy_loss
def forward(self, logits, targets, psi=None):
"""
计算总损失
"""
# 标准交叉熵损失
ce_loss = self.ce_loss(logits.view(-1, logits.size(-1)), targets.view(-1))
# 波函数正则化
if psi is not None:
wave_reg = self.wave_function_regularization(psi)
total_loss = ce_loss + self.alpha * wave_reg
else:
total_loss = ce_loss
return total_loss, ce_loss
class WaveOptimizer:
"""
波函数优化的特殊优化器
结合了标准优化和波函数特定约束
"""
def __init__(self, model, lr=1e-4, wave_lr=1e-3):
self.model = model
# 分离波函数参数和其他参数
wave_params = []
other_params = []
for name, param in model.named_parameters():
if 'frequency' in name or 'phase' in name or 'amplitude' in name:
wave_params.append(param)
else:
other_params.append(param)
# 创建优化器
self.optimizer = torch.optim.AdamW([
{'params': wave_params, 'lr': wave_lr},
{'params': other_params, 'lr': lr}
])
# 学习率调度
self.scheduler = torch.optim.lr_scheduler.CosineAnnealingWarmRestarts(
self.optimizer, T_0=10, T_mult=2
)
def step(self):
self.optimizer.step()
self.scheduler.step()
def zero_grad(self):
self.optimizer.zero_grad()
def enforce_wave_constraints(self):
"""
强制波函数约束
1. 振幅非负
2. 相位在合理范围
3. 频率为正
"""
with torch.no_grad():
for name, param in self.model.named_parameters():
if 'amplitude' in name:
# 振幅应为非负
param.data.clamp_(min=0.0)
elif 'frequency' in name:
# 频率应为正
param.data.clamp_(min=0.1)
elif 'phase' in name:
# 相位在合理范围
param.data = torch.remainder(param.data, 2 * math.pi)
8. 波函数注意力机制(替代自注意力)
python
class WaveAttention(nn.Module):
"""
基于波函数干涉的注意力机制
完全不同于Transformer的点积注意力
"""
def __init__(self, hidden_dim, n_heads=8):
super().__init__()
self.hidden_dim = hidden_dim
self.n_heads = n_heads
self.head_dim = hidden_dim // n_heads
# 波源参数
self.wave_sources = nn.Parameter(
torch.randn(n_heads, self.head_dim, 2) * 0.1
)
# 传播参数
self.propagation = nn.Parameter(
torch.randn(n_heads, self.head_dim, self.head_dim) * 0.01
)
# 干涉模式学习
self.interference_matrix = nn.Parameter(
torch.randn(n_heads, self.head_dim, self.head_dim) * 0.01
)
def forward(self, psi):
"""
波函数注意力机制
psi: [batch, seq_len, hidden_dim, 2]
返回: [batch, seq_len, hidden_dim, 2]
"""
batch_size, seq_len, hidden_dim, _ = psi.shape
# 分割为多头
psi = psi.view(batch_size, seq_len, self.n_heads, self.head_dim, 2)
# 转换为振幅和相位表示
amplitude = torch.norm(psi, dim=-1) # [batch, seq_len, n_heads, head_dim]
phase = torch.atan2(psi[..., 1], psi[..., 0])
# 1. 波源发射
# 每个头有特定的波源
source_waves = self.wave_sources.unsqueeze(0).unsqueeze(0) # [1, 1, n_heads, head_dim, 2]
# 2. 波传播(类似卷积)
# 将序列视为一维空间,波从每个位置传播
propagated_waves = []
for i in range(seq_len):
# 计算从所有位置到位置i的传播
distances = torch.arange(seq_len, device=psi.device).float() - i
distances = distances.view(1, seq_len, 1, 1)
# 传播衰减:exp(-α|d|) * exp(i*k*d)
decay = torch.exp(-0.1 * torch.abs(distances))
phase_shift = distances * 0.5 # 波数k
# 从所有位置传播到位置i
source_amplitude = amplitude # [batch, seq_len, n_heads, head_dim]
source_phase = phase # [batch, seq_len, n_heads, head_dim]
# 传播后的波
prop_amplitude = decay * source_amplitude
prop_phase = source_phase + phase_shift
# 转换为复数
prop_real = prop_amplitude * torch.cos(prop_phase)
prop_imag = prop_amplitude * torch.sin(prop_phase)
prop_wave = torch.stack([prop_real, prop_imag], dim=-1)
# 在序列维度求和(所有波源的贡献)
prop_wave_i = torch.sum(prop_wave, dim=1, keepdim=True) # [batch, 1, n_heads, head_dim, 2]
propagated_waves.append(prop_wave_i)
propagated = torch.cat(propagated_waves, dim=1) # [batch, seq_len, n_heads, head_dim, 2]
# 3. 干涉:原始波 + 传播波
combined = psi + propagated
# 4. 干涉模式学习
combined_flat = combined.view(batch_size * seq_len * self.n_heads, self.head_dim, 2)
combined_real = combined_flat[..., 0]
combined_imag = combined_flat[..., 1]
# 应用干涉矩阵
interference = self.interference_matrix.view(self.n_heads, self.head_dim, self.head_dim)
interference = interference.unsqueeze(0).repeat(batch_size * seq_len, 1, 1, 1)
interference = interference.view(-1, self.head_dim, self.head_dim)
# 复数矩阵乘法
output_real = torch.matmul(combined_real.unsqueeze(1), interference).squeeze(1)
output_imag = torch.matmul(combined_imag.unsqueeze(1), interference).squeeze(1)
output = torch.stack([output_real, output_imag], dim=-1)
output = output.view(batch_size, seq_len, self.n_heads, self.head_dim, 2)
# 合并多头
output = output.view(batch_size, seq_len, hidden_dim, 2)
return output
9. 完整模型集成
python
class EnhancedWaveDynamicsLM(nn.Module):
"""
增强版波动力学语言模型
结合了波函数注意力机制
"""
def __init__(self, vocab_size, hidden_dim=512, num_layers=12,
n_heads=8, n_qubits=8):
super().__init__()
self.wave_encoder = QuantumStateEncoding(vocab_size, hidden_dim, n_qubits)
# 波函数注意力层
self.wave_attention = WaveAttention(hidden_dim, n_heads)
# 波函数演化层
self.wave_layers = nn.ModuleList([
WaveResidualBlock(hidden_dim) for _ in range(num_layers)
])
# 波函数测量
self.measurement = WaveMeasurement(hidden_dim, vocab_size)
def forward(self, input_ids):
# 编码
psi = self.wave_encoder(input_ids)
# 波函数注意力
psi = self.wave_attention(psi)
# 波函数演化
for layer in self.wave_layers:
psi = layer(psi)
# 归一化
norm = torch.norm(psi, dim=-1, keepdim=True) + 1e-8
psi = psi / norm
# 测量
logits = self.measurement(psi)
return logits, psi
10. 理论创新与优势
- 物理可解释性:每个操作都有明确的物理意义(演化、干涉、测量)
- 连续表示:波函数提供连续的、概率幅表示
- 量子并行性:波函数可以同时处于多个状态的叠加
- 能量最小化:训练过程可以看作寻找基态(能量最低态)
- 干涉模式:注意力机制被重新解释为波干涉
- 幺正演化:信息在演化中保持(类似于可逆网络)
11. 训练示例
python
# 初始化模型
model = EnhancedWaveDynamicsLM(
vocab_size=50000,
hidden_dim=512,
num_layers=12,
n_heads=8
)
# 优化器
optimizer = WaveOptimizer(model, lr=1e-4, wave_lr=1e-3)
criterion = WaveLanguageModelLoss(alpha=0.1, beta=0.01)
# 训练循环
for batch in dataloader:
input_ids, labels = batch
# 前向传播
logits, psi = model(input_ids)
# 计算损失
loss, ce_loss = criterion(logits, labels, psi)
# 反向传播
loss.backward()
# 梯度裁剪
torch.nn.utils.clip_grad_norm_(model.parameters(), max_norm=1.0)
# 优化
optimizer.step()
optimizer.zero_grad()
# 强制波函数约束
optimizer.enforce_wave_constraints()
12. 潜在研究方向
- 量子-经典混合:将部分波函数演化放在量子计算机上执行
- 拓扑波函数:引入拓扑不变量作为正则化
- 相对论修正:考虑相对论性量子力学效应
- 多体波函数:处理多个粒子的纠缠态
- 路径积分:用费曼路径积分代替薛定谔方程
- 量子场论:引入产生和湮灭算符
这个架构完全脱离了Transformer的自注意力机制,基于波动力学的第一性原理构建。它将语言处理重新框架为波函数演化问题,为新一代AI架构提供了全新的思路。